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1

1

Getting

Started

This

chapter

describes

the

basic

operating

principle

,

and

the

basic

operating

of

the

polarization

controller

.

The

Basic

Operating

Principle

The

HP

8169A

P

olarization

Controller

transforms

polarization

relative

to

a

built

in

linear

polarizer

.

This

means

that

the

optical

input

is

passed

through

a

linear

polarizer

(P

ol),

to

extract

a

single

linear

polarization.

Block

Diagram

and

P

olarization

States

(non-polarized

!

linear

polarized)

Y

ou

should

position

this

plate

to

get

the

maximum

from

the

incoming

signal

(attach

a

power

meter

to

the

output,

and

set

the

angle).

The

/4

and

the

/2

plates

are

then

positioned

to

control

the

relative

state

of

polarization

of

this

signal.

Getting

Started

1-1

Содержание 8169A

Страница 1: ...User s Guide HP 8169A Polarization Controller SERIAL NUMBERS This guide applies to all instruments ABCDE HP Part No 08169 91011 Printed in the Federal Republic of Germany First Edition E0396 ...

Страница 2: ...ed to HP from another country HP warrants that its software and rmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument software or rmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply to defects resulting from ...

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Страница 4: ...as been impaired the instrument must be made inoperative and be secured against any unintended operation Make sure that only fuses with the required rated current and of the speci ed type normal blow time delay etc are used for replacement The use of repaired fuses and the short circuiting of fuseholders must be avoided Adjustments described in the manual are performed with power supplied to the i...

Страница 5: ...tion to a procedure practice or the like which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met Caution The CAUTION sign denotes a hazard It calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result in damag...

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Страница 7: ...etarder Plates 2 4 Using the Circle Mode 2 4 Example Setting the Optimum Transmission SoP 2 4 Set the Polarizing Filter 2 5 Setting the Worst Case Transmission SoP 2 6 Setting the Optimum Transmission SoP 2 7 3 Scanning the Poincare Sphere Setting up the Hardware 3 1 Setting Up and Executing a Scan 3 1 Example Measuring the Response to a Depolarized Signal 3 2 Set the Polarizing Filter 3 3 Setting...

Страница 8: ...s and Transmits Messages 5 3 How the Input Queue Works 5 3 Clearing the Input Queue 5 4 The Output Queue 5 4 The Error Queue 5 4 Some Notes about Programming and Syntax Diagram Conventions 5 4 Short Form and Long Form 5 5 Command and Query Syntax 5 5 6 Remote Commands Command Summary 6 2 The Common Commands 6 5 Common Status Information 6 5 SRQ The Service Request 6 6 CLS 6 7 ESE 6 7 ESE 6 8 ESR 6...

Страница 9: ...Rt 6 21 STATus Commands 6 23 Setting Up the STATus Registers 6 24 STATus PRESet 6 24 STATus OPERation NTRansition 6 25 STATus OPERation NTRansition 6 25 STATus OPERation PTRansition 6 25 STATus OPERation PTRansition 6 25 STATus OPERation ENABle 6 25 STATus OPERation ENABle 6 26 STATus QUEStionable NTRansition 6 27 STATus QUEStionable NTRansition 6 27 STATus QUEStionable PTRansition 6 27 STATus QUE...

Страница 10: ...ery A 5 Operating and Storage Environment A 5 Temperature A 6 Humidity A 6 Altitude A 6 Installation Category and Pollution Degree A 6 Instrument Positioning and Cooling A 6 Switching on the Polarization Controller A 7 Optical Output A 7 Trigger Input and Output A 8 HP IB Interface A 8 Connector A 9 HP IB Logic Levels A 9 Claims and Repackaging A 10 Return Shipments to HP A 10 B Accessories Instru...

Страница 11: ... of Polarizer D 10 E Cleaning Procedures Cleaning Materials E 1 Cleaning Fiber Front Panel Connectors E 2 Cleaning Connector Interfaces E 2 Cleaning Connector Bushings E 3 Cleaning Detector Windows E 3 Cleaning Lens Adapters E 3 Cleaning Detector Lens Interfaces E 4 F Error Messages Display Messages F 1 HP IB Messages F 2 Command Errors F 2 Execution Errors F 5 Device Speci c Errors F 6 Query Erro...

Страница 12: ...A 7 A 6 HP IB Connector A 9 B 1 Straight Contact Connector Con guration B 2 B 2 Angled Contact Connector Con guration B 3 D 1 Test Setup for Measuring the Insertion Loss D 2 D 2 Test Setup for Measuring the Reference Power D 7 D 3 Test Setup for Measuring the Extinction Ratio D 10 Tables 5 1 HP IB Capabilities 5 2 6 1 Common Command Summary 6 2 6 2 Command List 6 3 6 3 Reset State Default Setting ...

Страница 13: ...ar polarizer This means that the optical input is passed through a linear polarizer Pol to extract a single linear polarization Block Diagram and Polarization States non polarized linear polarized You should position this plate to get the maximum from the incoming signal attach a power meter to the output and set the angle The 4 and the 2 plates are then positioned to control the relative state of...

Страница 14: ...nse of your Device Under Test you can nd the maximum and minimum power levels and thus make polarization dependent measurements By varying the plate positions quickly and averaging over all the states of polarization you can measure the response of your DUT to a depolarized signal Using the Polarization Controller for Polarization Analysis It is also possible to use the polarization controller to ...

Страница 15: ... move the cursor left and right using the Cursor keys 4 5 and 4 5 If you want to abort editing without changing the parameter press NNNNNNNNNNNNNNNNNNNN Cancel If the parameter changes back to its old value when you press 4Enter5 then the new value would be out of the range allowed for that parameter Editing Using the Modify Keys and Knob 1 Make sure the correct parameter is selected the label of ...

Страница 16: ...e a digit with the Vernier keys or the Modify knob this means that the new value would be out of the range allowed for the parameter Resetting Parameters To reset any parameter 1 Make sure the correct parameter is selected the label of the selected parameter is displayed inverse 2 Press NNNNNNNNNNNNNNNNNNNNNNN Default To reset Pol 4 2 2 B AND 2 P simultaneously press 4Home5 1 4 Getting Started ...

Страница 17: ...ed for the whole of the measurement Moving the bers changes the state of polarization Typically you will connect the polarization controller directly after your source and before your device under test DUT Before connecting to the rest of your measurement setup you should set the position of the polarizing lter Setting the Position of the Polarizing Filter The polarizing lter should be set to maxi...

Страница 18: ...y selected 4 Move the lter to nd the maximum signal through the polarization controller One way of doing this is a Press the right Cursor key twice to select the units digit b Watching the power meter and using the Modify knob adjust the angle of the polarization lter until you are in the area of one of the maxima c Select the tenths digit d Watching the power meter and using the Modify knob adjus...

Страница 19: ... B and P P is the optical angle about the equator of the sphere that is 2 P is the angle of longitude B is half the angle of elevation from the equatorial plane that is 2 B is the angle of latitude The coordinates for describing the state of polarization The state of polarization is always relative to the output from the polarizing lter There are two ways of setting the state of polarization by sp...

Страница 20: ...ge the angle to the value you want See Editing in Chapter 1 if you need information on changing the angles Example Setting the Optimum Transmission SoP To nd the state of polarization which gives optimum transmission for a linear device under test DUT the steps are i Set the polarizing lter ii Find the state of polarization for worst case transmission this is easier to nd because the resolution al...

Страница 21: ...e output power of the source Set the Polarizing Filter 5 Press 4Home5 on the polarization controller 6 Press 4Pos5 7 Set the angle of the polarizing lter for maximum throughput a Type in 10 and press 4Enter5 b Press 4 5 twice to select the tens digit c Using the Modify knob increase the angle slowly until the power read on the multimeter increases and then starts to decrease d Press 4 5 once to se...

Страница 22: ...also use the fact that the relationship between power of the signal transmitted through the DUT and polarization on the surface of the sphere can be expressed as concentric circles about the worst case or optimum and that for a linear DUT the worst case and optimum are on opposite sides of the sphere Power contours about the worst case on the poincare sphere This means that we nd the worst case po...

Страница 23: ...tude with the minimum power Setting the Optimum Transmission SoP 12 Read the value for B from the display 13 Add 180 to this value 14 Type in the new value and press 4Enter5 The state of polarization is now set to the value for the current setup that gives the greatest power through the ber This is possible here because the ber behaves linearly For non linear components the polarizations for worst...

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Страница 25: ...est DUT Before connecting to the rest of your measurement setup you should set the position of the polarizing lter this is described in Setting the Position of the Polarizing Filter in Chapter 2 Setting Up and Executing a Scan The sphere application changes the state of polarization over time by rotating the 2 and 4 plates The rotations can be done slowly to give a quasi randomly polarized signal ...

Страница 26: ... not already selected a Move the Modify knob b Select Slow using the Modify knob 4 5 or NNNNN c Press 4Enter5 or NNNNNNNNNNNNNNNNNNNN Select 3 When everything is setup press NNNNNNNNNNNNNN Exec to start the scan During the scan values for the angle of 4 and 2 are shown on the display These values are samples The plates rotate continuously Example Measuring the Response to a Depolarized Signal To m...

Страница 27: ...20 minutes to warmup Warming up is necessary for accuracy of the sensor and the output power of the source 4 Set the channel with the sensor module to the wavelength of the source and select the default averaging speed 200ms Press 4Param5 to select T hold 4Param5 to reset T Set the Polarizing Filter 5 Press 4Home5 on the polarization controller 6 Press 4Pos5 7 Set the angle of the polarizing lter ...

Страница 28: ...the setup disturbing the setup as little as possible Setup with the DUT Setting Up the Instruments 9 Run the sphere application with a fast scan a Press 4Sphere5 b Make sure that Speed is set to Fast If it is not then i Move the Modify knob to start the parameter selection ii Select Fast using the Modify knob 4 5 or NNNNN iii Press NNNNNNNNNNNNNNNNNNNN Select 10 Set the averaging time on the power...

Страница 29: ...o Slow iii Set the power meter to record iv Start the scan and record the readings for di erent polarization states v Analyze the results For this example you will need apart from the polarization controller a laser source and a power meter in the description below an HP 8153A Multimeter with a laser module and a sensor module are used A roll of ber will act as a suitable DUT 1 With both instrumen...

Страница 30: ...rizing lter for maximum throughput a Type in 10 and press 4Enter5 b Press 4 5 twice to select the tens digit c Using the Modify knob increase the angle slowly until the power read on the multimeter increases and then starts to decrease d Press 4 5 once to select the units digit e Using the Modify knob decrease the angle slowly until the power read on the multimeter starts to decrease f Press 4 5 t...

Страница 31: ... meter to 20ms Press 4Param5 to select T and 4 5 to set it to 20ms 11 Set up a Stability measurement over 20 seconds Press 4Menu5 and 4Record5 to select STABILTY Press 4Edit5 to select T TOTAL and set it to 00 00 20 set AUTODUMP to OFF Running the Scan 12 Press NNNNNNNNNNNNNN Exec on the polarization controller There is a slight delay while the application is initialized and then the values of 4 a...

Страница 32: ...hed look at the results and nd the di erence between the highest and lowest Press 4More5 to get SHOW press 4Edit5 and then 4Next5 twice to get DIFF This is the Polarization Dependent Loss for the DUT 3 8 Scanning the Poincare Sphere ...

Страница 33: ...ess 4Syst5 and them NNNNNNNNNNNNNNNNNNNNNNN STO RCL to see the actual current setting of the instrument the default setting for the instrument and the 9 stored settings for the instrument View the various settings by using NNNNNNNNNNNNNNNNNNNNNNNNNN Previous and NNNNNNNNNNNNNN Next Storing a Setting To store the actual instrument setting 1 Find one of the nine numbered settings which you can overw...

Страница 34: ...parameters to their default values the polarization lter and both wavelength plates are reset to 0 00 and the speed for the sphere application is set to Fast To reset the instrument you can either 1 Find the actual setting using NNNNNNNNNNNNNNNNNNNNNNNNNN Previous and NNNNNNNNNNNNNN Next 2 Press NNNNNNNNNNNNNNNNNNNNNNN Default or 1 Find the default setting using NNNNNNNNNNNNNNNNNNNNNNNNNN Previous...

Страница 35: ...he HP IB conforms to IEEE standard 488 1978 ANSII standard MC 1 1 and IEC recommendation 625 1 The information in these chapters assumes that you are already familiar with programming over the HP IB If you are not familiar with the HP IB then refer to the following books Hewlett Packard Company Tutorial Description of Hewlett Packard Interface Bus 1987 The International Institute of Electrical and...

Страница 36: ...lly by various publishers To obtain a copy of this manual contact your Hewlett Packard representative The polarization controller interfaces to the HP IB as de ned by the IEEE Standards 488 1 and 488 2 The table shows the interface functional subset that the polarization controller implements Table 5 1 HP IB Capabilities Mnemonic Function SH1 Complete source handshake capability AH1 Complete accep...

Страница 37: ...er Receives and Transmits Messages The polarization controller exchanges messages using an input and an output queue Error messages are kept in a separate error queue How the Input Queue Works The input queue is a FIFO queue rst in rst out Incoming bytes are stored in the input queue as follows 1 Receiving a byte a Clears the output queue b Clears Bit 7 MSB 2 No modi cation is made inside strings ...

Страница 38: ... a LF 0A16 with EOI TRUE If no query is received or if the query has an error the output queue remains empty The Message Available bit MAV bit 4 is set in the Status Byte register whenever there is data in the output queue The Error Queue The error queue is a FIFO queue rst in rst out That is the rst error read is the oldest error to have occurred If too many errors are put into the queue the mess...

Страница 39: ...haracters not between angled brackets must be sent exactly as shown The characters between angled brackets show the kind of data that you send or that you get in a response You do not type the angled brackets in the actual message Descriptions of these items follow the syntax description The most common of these are string is ascii data A string is contained between a at the start and the end or a...

Страница 40: ......

Страница 41: ...s a list of the remote commands for use with the HP IB In the remote command descriptions the parts given in upper case characters must be given The parts in lower case characters can also be given but they are optional Remote Commands 6 1 ...

Страница 42: ...5 Standard Event Status Register Query IDN string Identi cation Query OPC Operation Complete Command OPC value Operation Complete Query RCL location 0 9 Recall Instrument Setting RST Reset Command SAV location 1 9 Save Instrument Setting SRE value 0 255 Service Request Enable Command SRE value 0 255 Service Request Enable Query STB value 0 255 Read Status Byte Query TST value 0 65535 Self Test Que...

Страница 43: ...160 00 2160 00 0 00 THETap value y POSition HALF value y 360 00 360 00 0 00 HALF value y POLarizer value y 360 00 360 00 0 00 POLarizer value y QUARter value y 360 00 360 00 0 00 QUARter value y PSPHere RATE 0 j 1 0 1 1 RATE 0 j 1 STATus OPERation CONDition value ENABle value 0 65535 0 ENABle value EVENt value NTRansition value 0 65535 0 NTRansition value PTRansition value 0 65535 0 PTRansition va...

Страница 44: ...ATus QUEStionable CONDition value ENABle value 0 65535 0 ENABle value EVENt value NTRansition value 0 65535 0 NTRansition value PTRansition value 0 65535 0 PTRansition value SYSTem ERRor value VERSion always returns 1994 0 y No unit is speci ed but all values are in degrees 6 4 Remote Commands ...

Страница 45: ...rs are optional This section describes the implemented commands Common Status Information There are four registers for the common status information Two of these are status registers and two are enable registers These registers conform to the IEEE Standard 488 2 1987 You can nd further descriptions of these registers under ESE ESR SRE and STB The following gure shows how the registers are organize...

Страница 46: ...when you read them SRQ The Service Request A service request SRQ occurs when a bit in the Status Byte register goes from 0 1 AND the corresponding bit in the Service Request Enable Mask is set The Request Service RQS bit is set to 1 at the same time that the SRQ is caused This bit can only be reset by reading it by a serial poll The RQS bit is 6 6 Remote Commands ...

Страница 47: ...e canceled If the CLS command occurs directly after a program message terminator the output queue and MAV bit 4 in the status byte register are cleared and if condition bits 2 0 of the status byte register are zero MSS bit 6 of the status byte register is also zero Example OUTPUT 724 CLS ESE Syntax ESE wsp value 0 value 255 De nition The ESE command sets bits in the standard event status enable re...

Страница 48: ...rol 2 0 Operation Complete 1 ESE The standard event status enable query returns the contents of the standard event status enable register Example OUTPUT 724 ESE 21 OUTPUT 724 ESE ENTER 724 A ESR Syntax ESR De nition The standard event status register query returns the contents of the standard event status register The register is cleared after being read 0 contents 255 6 8 Remote Commands ...

Страница 49: ...tion Control 1 Example OUTPUT 724 ESR ENTER 724 A IDN Syntax IDN De nition The identi cation query commands the instrument to identify itself over the interface Response HEWLETT PACKARD HP8169A mmmmmmmmmm n nn HEWLETT PACKARD manufacturer HP8169A instrument model number mmmmmmmmmm serial number n nn rmware revision level Example DIM A 100 OUTPUT 724 IDN ENTER 724 A Remote Commands 6 9 ...

Страница 50: ... queue to be parsed and executed Once it has completed it places an ASCII 1 in the output queue There is a short delay between interpreting the command and putting the 1 in the queue Example OUTPUT 724 CLS ESE 1 SRE 32 OUTPUT 724 OPC ENTER 724 A RCL Syntax RCL wsp location 0 location 9 De nition An instrument setting from the internal RAM is made the actual instrument setting this does not include...

Страница 51: ...andard event status enable register ESE The commands and parameters of the reset state are listed in the following table Table 6 3 Reset State Default Setting Parameter Reset Value Pol 0 00 4 0 00 2 0 00 Speed Fast Example OUTPUT 724 RST SAV Syntax SAV wsp location 1 location 9 De nition The instrument setting is stored in RAM You can store settings in locations 1 9 The scope of the saved setting ...

Страница 52: ...f zero The register is not changed by the RST and CLS commands The Service Request Enable Register BITS MNEMONICS BIT VALUE 7 Operation Status 128 6 Request Status 64 5 Event Status Byte 32 4 Message Available 16 3 Questionable Status 8 2 Not used 0 1 Not used 0 0 Not used 0 Note Bit 6 cannot be masked SRE The service request enable query returns the contents of the service request enable register...

Страница 53: ... Request Service 64 5 Event Status Byte 32 4 Message Available 16 3 Questionable Status 8 2 Not used 0 1 Not used 0 0 Not used 0 Example OUTPUT 724 STB ENTER 724 A TST Syntax TST De nition The self test query commands the instrument to perform a self test and place the results of the test in the output queue Returned value 0 value 65535 This value is the sum of the results for the individual tests...

Страница 54: ...DSP Communications had failed and so had the Battery RAM A value of zero shows no errors No further commands are allowed while the test is running The instrument is returned to the setting that was active at the time the self test query was processed The self test does not require operator interaction beyond sending the TST query Example OUTPUT 724 TST ENTER 724 A WAI Syntax WAI De nition The wait...

Страница 55: ...l display Set the state to OFF or 0 to switch the display o set the state to ON or 1 to switch the display on The default is for the display to be on DISPlay ENABle Syntax DISPlay ENABle Description The query returns the current state of the display A returned value of 0 shows that the display is o A returned value of 1 shows that the display is on Example OUTPUT 724 DISP ENAB ON OUTPUT 724 DISP E...

Страница 56: ...iption This command sets the position of the polarizing lter The parameter may be either a number in mechanical degrees do not give a unit the number will be rounded to the nearest 0 05 MINimum 360 00 MAXimum 360 00 or DEFault 0 00 INPut POSition POLarizer Syntax INPut POSition POLarizer Description This query gets the position of the polarizing lter in mechanical degrees without a unit Example OU...

Страница 57: ...720 00 and 720 00 Description This command sets the 2 B position on of the Poincare sphere The parameter may be either a number in optical degrees do not give a unit the number will be rounded to the nearest 0 05 MINimum 720 00 MAXimum 720 00 or DEFault 0 00 Note The value you specify with this command is for 2 B INPut CIRCle EPSilonb Syntax INPut CIRCle EPSilonb Description This query gets the 2 ...

Страница 58: ...t the number will be rounded to the nearest 0 05 MINimum 2160 00 MAXimum 2160 00 or DEFault 0 00 Note The value you specify with this command is for 2 P INPut CIRCle THETap Syntax INPut CIRCle THETap Description This query gets the position of the 2 P position on the Poincare sphere in optical degrees without a unit Note The value returned by this query is for 2 P Example OUTPUT 724 CIRC EPS 128 O...

Страница 59: ... DEFault 0 00 INPut POSition HALF Syntax INPut POSition HALF Description This query gets the position of the 2 retarder plate in mechanical degrees without a unit INPut POSition QUARter Syntax INPut POSition QUARter wsp value jMINimumjMAXimumjDEFault where value is a oating point number between 360 00 and 360 00 Description This command sets the position of the 4 retarder plate The parameter may b...

Страница 60: ...UARter Description This query gets the position of the 4 retarder plate in mechanical degrees without a unit Example OUTPUT 724 POS QUAR 64 OUTPUT 724 POS HALF 99 5 OUTPUT 724 POS QUAR ENTER 724 Q OUTPUT 724 POS HALF ENTER 724 H 6 20 Remote Commands ...

Страница 61: ...e speed to fast for quasi depolarized signals INPut PSPHere RATE Syntax INPut PSPHere RATE Description This query gets the the speed at which the the state of polarization is set to change 0 if the speed is set to slow 1 if the speed is set to fast or INITiate IMMediate Syntax INITiate IMMediate Description This command starts the application ABORt Syntax ABORt Description This command aborts an a...

Страница 62: ...6 OUTPUT 724 ABOR 6 22 Remote Commands ...

Страница 63: ...leared when it is read A positive transition register PTRansition which when enabled puts a 1 into the event register when the corresponding bit in the condition register goes from 0 to 1 The power on condition for this register is for all the bits to be enabled A negative transition register NTRansition which when enabled puts a 1 into the event register when the corresponding bit in the conditio...

Страница 64: ...us PRESet Description This command presets all the enable registers and transition lters for both the OPERation and QUEStionable nodes All the bits in the ENABle registers are set to 0 All the bits in the PTRansition registers are set to 1 All the bits in the NTRansition registers are set to 0 Example OUTPUT 724 STAT PRES 6 24 Remote Commands ...

Страница 65: ...he OPERation NTRansition register STATus OPERation PTRansition Syntax STATus OPERation PTRansition wsp value Description This command sets the bits in the PTRansition register Setting a bit in this register enables a positive transition 0 1 in the corresponding bit in the CONDition register to set the bit in the EVENt register STATus OPERation PTRansition Syntax STATus OPERation PTRansition Descri...

Страница 66: ...urns the current contents of the OPERation ENABle register Example OUTPUT 724 STAT OPER NTR 2 OUTPUT 724 STAT OPER PTR 256 OUTPUT 724 STAT OPER ENAB 258 OUTPUT 724 STAT OPER NTR ENTER 724 N OUTPUT 724 STAT OPER PTR ENTER 724 P OUTPUT 724 STAT OPER ENAB ENTER 724 E 6 26 Remote Commands ...

Страница 67: ...TRansition Syntax STATus QUEStionable PTRansition wsp value Description This command sets the bits in the PTRansition register Setting a bit in this register enables a positive transition 0 1 in the corresponding bit in the CONDition register to set the bit in the EVENt register STATus QUEStionable PTRansition Syntax STATus QUEStionable PTRansition Description This query returns the current conten...

Страница 68: ...urns the current contents of the QUEStionable ENABle register Example OUTPUT 724 STAT QUES NTR 256 OUTPUT 724 STAT QUES PTR 256 OUTPUT 724 STAT QUES ENAB 256 OUTPUT 724 STAT QUES NTR ENTER 724 N OUTPUT 724 STAT QUES PTR ENTER 724 P OUTPUT 724 STAT QUES ENAB ENTER 724 E 6 28 Remote Commands ...

Страница 69: ... CONDition register Only two bits of the condition register are used BITS MNEMONICS BIT VALUE 8 Settling 256 1 Application 2 Example OUTPUT 724 STAT OPER COND ENTER 724 A STATus OPERation EVENt Syntax STATus OPERation EVENt Description This query reads the contents of the OPERation EVENt register Only two bits of the event register are used whether these bits contain information depends on the tra...

Страница 70: ...ion Data 256 Example OUTPUT 724 STAT QUES COND ENTER 724 A STATus QUEStionable EVENt Syntax STATus QUEStionable EVENt Description This query reads the contents of the QUEStionable EVENt register Only one bit of the event register is used whether these bits contain information depends on the transition register con guration BITS MNEMONICS BIT VALUE 8 Calibration Data 256 Example OUTPUT 724 STAT QUE...

Страница 71: ...range 32768 and 32767 Negative error numbers are de ned by the SCPI standard Positive error numbers are device dependent The errors are listed in Appendix F Example OUTPUT 724 SYST ERR ENTER 724 A SYSTem VERSion Syntax SYSTem VERSion Description This query returns the version of the SCPI command set being used in the format yyyy v where yyyy is the year and v is the version For this instrument the...

Страница 72: ......

Страница 73: ...ming is BASIC 5 1 Language System used on HP 9000 Series 200 300 computers These programming examples do not cover the full command set for the instrument They are intended only as an introduction to the method of programming the instrument The programming examples use the HP IB Programming Examples 7 1 ...

Страница 74: ... 110 Pol 724 This statement sets the address of the polarization controller The rst 7 is to access the HP IB card in the controller the 24 is it s HP IB address 120 DIM String 50 130 150 PRINT TABXY 5 10 Programming Example 1 Simple Communications 160 170 Send an IDN query and get the Identification 180 190 OUTPUT Pol IDN 200 ENTER Pol String 210 PRINT TABXY 10 12 Identification String 220 230 END...

Страница 75: ...eful self learning tool 60 70 80 90 Declarations and initializations 100 110 INTEGER Value Bit Quot Xpos Ypos 120 DIM Inp 100 130 DIM A 300 140 Pol 724 150 ON INTR 7 GOSUB Pmm_srq 160 170 Mask the registers 180 190 OUTPUT Pol SRE 248 ESE 255 The SRE 248 command enables bits 7 Operation Status Summary 5 ESB 4 MAV and 3 Questionable Status Summary in the status byte bit 6 SRQ cannot be disabled in t...

Страница 76: ...art the program loop and enable the interrupt for the errors 450 460 Ende 0 470 GOSUB Pmm_srq 480 ENABLE INTR 7 2 490 500 The Central Loop 510 520 REPEAT 530 INPUT Command Inp 540 GOSUB Pmm_srq 550 OUTPUT Pol Inp 560 PRINT TABXY 21 16 570 PRINT TABXY 21 16 Inp 580 WAIT 1 0 590 UNTIL Ende 1 600 GOTO 1380 610 620 630 Pmm_srq Interrupt Handling Subroutine to display the status and the 640 error and o...

Страница 77: ...20 930 IF Z 0 THEN 940 IF Bit 16 THEN 950 ENTER Pol A 960 PRINT TABXY 21 18 A 970 END IF 980 END IF 990 1000 If the bit is not set then display 0 1010 1020 ELSE 1030 PRINT TABXY Xpos Ypos 0 1040 END IF 1050 1060 Set up for the next iteration 1070 1080 Bit Bit DIV 2 1090 Xpos Xpos 4 1100 UNTIL Bit 0 1110 1120 Now that the status byte is displayed get the Standard Events 1130 Status Register 1140 11...

Страница 78: ... 1270 ENTER Pol Value A The SYSTEM ERROR query gets the number of the last error in the error queue 1280 IF Value 0 THEN PRINT TABXY 21 17 Value A 1290 UNTIL Value 0 1300 1310 Clear the Status structure and reenable the interrupt before returning 1320 1330 OUTPUT Pol CLS 1340 ENABLE INTR 7 1350 1360 RETURN 1370 1380 END 7 6 Programming Examples ...

Страница 79: ...er in the description below an HP 8153A Multimeter with a laser module and a sensor module are used We will use the length of ber connecting the instruments as our linear DUT Setting Up the Equipment 1 With both instruments switched o connect the laser source to the polarization controller 2 Connect the polarization controller to the power meter Setup for setting the position of the polarizing lte...

Страница 80: ... OUTPUT Mm rst cls 150 OUTPUT Pol rst cls 160 170 Setup the instruments with the output of the source connected 180 to the input of the sensor and wait for the ENTER key to be 190 pressed before continuing 200 210 CLEAR SCREEN 220 True 1 230 False 0 240 250 Set the Wavelength and the averaging time for the sensor 260 270 OUTPUT Mm sour pow wave 280 ENTER Mm Wl 290 OUTPUT Mm sens2 pow wave Wl 300 O...

Страница 81: ...590 END IF 600 UNTIL ABS Inc 05 610 620 Now search for the worst case polarization when changing thetap 630 640 Angle 0 650 Inc 10 660 Minward False 670 Minpow Maxpow 680 REPEAT 690 Angle Angle Inc 700 OUTPUT Pol circle thetap Angle 710 OUTPUT Mm read2 power 720 ENTER Mm Newpow 730 IF Newpow Minpow THEN 740 IF Minward True THEN 750 Inc Inc 2 760 ELSE 770 Inc Inc 780 Minward True 790 END IF 800 ELS...

Страница 82: ... Minpow THEN 970 IF Minward True THEN 980 Inc Inc 2 990 ELSE 1000 Inc Inc 1010 Minward True 1020 END IF 1030 ELSE 1040 Minpow Newpow 1050 Minward True 1060 END IF 1070 UNTIL ABS Inc 05 1080 1090 Now set the optimum by moving to the opposite side of the 1100 sphere 1110 1120 OUTPUT Pol circle epsilonb Angle 180 1130 1140 And finish 1150 1160 OUTPUT Mm sour pow state off 1170 END 7 10 Programming Ex...

Страница 83: ... 8153A Multimeter with a laser module and a sensor module are used A roll of ber will act as a suitable DUT Setting Up the Equipment 1 With both instruments switched o connect the laser source to the polarization controller 2 Connect the polarization controller to the power meter Setup for setting the position of the polarizing lter 3 Switch on both instruments and enable the laser source Note Und...

Страница 84: ...110 Pol 724 120 Mm 722 130 140 OUTPUT Mm rst cls 150 OUTPUT Pol rst cls 160 170 Setup the instruments with the output of the source connected 180 to the input of the sensor and wait for the ENTER key to be 190 pressed before continuing 200 210 CLEAR SCREEN 220 True 1 230 False 0 240 250 Set the Wavelength and the averaging time for the sensor 260 270 OUTPUT Mm sour pow wave 280 ENTER Mm Wl 290 OUT...

Страница 85: ...t ENTER when you have inserted the DUT 650 INPUT Dummy 660 670 Set up the instruments for slow scanning of the sphere and at fast 680 measurement time to sample the power 690 700 OUTPUT Pol psphere rate 0 710 OUTPUT Mm sens2 pow atime 20ms 720 OUTPUT Mm sens2 pow unit dbm 730 Set values that have to change for maximum and minimum 740 Minpow 100 750 Maxpow 100 760 770 Start the scanning 780 790 OUT...

Страница 86: ...ependence 900 910 Calculate and display the difference 920 930 PRINT TABXY 10 12 Polarization Dependence Maxpow Minpow dB 940 950 Tidy up and leave 960 970 OUTPUT Pol abort 980 OUTPUT Mm sour pow state off 990 END 7 14 Programming Examples ...

Страница 87: ...ration review the instrument and manual for safety markings and instructions You must follow these to ensure safe operation and to maintain the instrument in safe condition Initial Inspection Inspect the shipping container for damage If there is damage to the container or cushioning keep them until you have checked the contents of the shipment for completeness and veri ed the instrument both mecha...

Страница 88: ...ty standards this instrument has a three wire power cable When connected to an appropriate AC power receptacle this cable earths the instrument cabinet The type of power cable shipped with each instrument depends on the country of destination Refer to Figure A 1 for the part numbers of the power cables available Figure A 1 Line Power Cables Plug Identi cation Warning To avoid the possibility of in...

Страница 89: ... the plug on the cable does not t the power outlet or if the cable is to be attached to a terminal block cut the cable at the plug end and rewire it The color coding used in the cable depends on the cable supplied If you are connecting a new plug it should meet the local safety requirements and include the following features Adequate load carrying capacity see table of speci cations Ground connect...

Страница 90: ...se holder is at the rear of the instrument beside the line power connector To replace the fuse 1 Release the fuse holder use the blade of a at headed screwdriver to depress the catch at the side of the holder and then pull the holder out a little Figure A 3 Releasing the Fuse Holder 2 Pull the fuse holder out of the instrument A 4 Installation ...

Страница 91: ...or by HP service personnel There is a danger of explosion if the battery is incorrectly replaced Replace only with the same or an equivalent type HP part number 1420 0394 Discard used batteries according to local regulations Operating and Storage Environment The following summarizes the HP 8169A operating environment ranges In order for the polarization controller to meet speci cations the operati...

Страница 92: ... operate at up to 10 000 feet Installation Category and Pollution Degree The HP 8169A has Installation Category II and Pollution Degree 2 according to IEC 664 Instrument Positioning and Cooling Mount or position the instrument upright and horizontally so that air can circulate around it freely When operating the polarization controller choose a location that provides at least 75mm 3inches of clear...

Страница 93: ...elf test described in TST in Chapter 6 Optical Output Caution The polarization controller is supplied with either a straight contact connector Option 021 or an angled contact connector Option 022 Make sure that you only use the correct cables with your chosen output See Connector Interfaces and Other Accessories in Appendix B for further details on connector interfaces and accessories Installation...

Страница 94: ...tandard TTL level signal Caution A maximum of between 0V and 5V can be applied as an external voltage to the Trigger Output BNC connector HP IB Interface You can connect your HP IB interface into a star network a linear network or a combination star and linear network The limitations imposed on this network are as follows The total cable length cannot exceed 20 meters The maximum cable length per ...

Страница 95: ...ock screws and stud mounts 6 32 UNC that have a shiny nickel nish Caution It is recommended that you do not stack more than three connectors one on top of the other Hand tighten the connector lock screws Do not use a screwdriver HP IB Logic Levels The polarization controller HP IB lines use standard TTL logic as follows True Low digital ground or 0Vdc to 0 4Vdc False High open or 2 5Vdc to 5Vdc Al...

Страница 96: ...turn address model number and full serial number and the type of service required The original shipping carton and packing material may be reusable but the Hewlett Packard Sales Service O ce will provide information and recommendation on materials to be used if the original packing is no longer available or reusable General instructions for repacking are as follows 1 Wrap instrument in heavy paper...

Страница 97: ...ed contact connectors Option 022 Additional Operating and Option 0B2 Programming Manual HP IB Cables and Adapters The HP IB connector is compatible with the connectors on the following cables and adapters HP IB Cable 10833A 1 m 3 3 ft HP IB Cable 10833B 2 m 6 6 ft HP IB Cable 10833C 4 m 13 2 ft HP IB Cable 10833D 0 5 m 1 6 ft HP IB Adapter 10834A 2 3 cm extender Accessories B 1 ...

Страница 98: ...HMS 10 DIN Biconic SC ST or D4 to connect to the instrument you must 1 attach your connector interface see the list of connector interfaces below to the interface adapter 2 then connect your cable Figure B 1 Straight Contact Connector Con guration Connector Interface Description Model No Biconic HP 81000WI D4 HP 81000GI Diamond HMS 10 HP HP 81000AI DIN 47256 HP 81000SI FC PC HP 81000FI SC HP 81000...

Страница 99: ...onnect to the instrument you must 1 attach your connector interface see the list of connector interfaces below to the interface adapter 2 then connect your cable Figure B 2 Angled Contact Connector Con guration Connector Interface Description Model No Diamond HRL 10 DIN HP 81000SI FC APC HP 81000FI SC APC HP 81000KI Accessories B 3 ...

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Страница 101: ...55 C temperature range after a one hour warm up period Characteristics provide information about non warranted performance Speci cations are given in normal type characteristics are given in italicized type Spliced ber pigtail interfaces are assumed for all cases except where stated otherwise Speci cations C 1 ...

Страница 102: ...9 2 greater than minimum step size 60 5 2 Settling time characteristic 200ms Memory Store Recall registers 9 Angular repeatability after Store Recall3 60 09 2 Number of scan rate settings 2 Maximum rotation rate3 3600 sec Maximum Operating Input Power Limitation 23dBm Operating Port Return Loss characteristic Individual re ections 60dB Power Requirements 48 to 60Hz 100 120 220 240Vrms 45VAmax W ei...

Страница 103: ...osition 35dBA Normal operation 20dBA 3 2Bel Data are results from type tests per ISO 7779 EN 27779 Ger auschemissionswerte Bei einer Umgebungstemperatur bis 30 C Lp 30 dB A Lw 4 2 Bel am Arbeitsplatz 35dBA normaler Betrieb 20dBA 3 2Bel Die Angabe ist das Ergebnis einer Typpr ufung gem a ISO 7779 EN 27779 Speci cations C 3 ...

Страница 104: ...EMC EN 55011 1991 CISPR 11 Group 1 Class B EN 50082 1 1992 IEC 801 2 ESD 4 kV cd 8 kV ad IEC 801 3 Radiated Immunity 3 V m IEC 801 4 Fast Transients 0 5 kV 1 kV Supplementary Information During the measurements for EN 55011 the I O ports were terminated with nominal impedance the HP IB connection was terminated with the cable HP 10833B When the product is connected to other devices the user must e...

Страница 105: ...Depolarizing Filter 1 1 1 HP 81000BA Bare Fiber Adapter 1 HP 81000FA FC PC Connector Adapter 1 1 HP 81000SA DIN 47256 Connector Adapter 1 HP 81000AI Diamond HMS 10 Connector Interface 1 3 1 HP 81000FI FC PC Connector Interface 2 1 1 HP 81000SI DIN 47256 Connector Interface 2 HP 81000UM Universal Through Adapter 2 1 1 SEIKO PC PC adapter 1 1 HP 81109AC Diamond HMS 10 HP HRL Diamond HMS 10 HP Patchc...

Страница 106: ...ariation with Rotation of 4 and 2 Plates 1 Make sure all the connectors you will be using are clean 2 Set up the hardware as shown in Figure D 1 Figure D 1 Test Setup for Measuring the Insertion Loss D 2 Performance Test ...

Страница 107: ...Set 8153A to datalogging i Press 4Mode5 to get MENU ii Press 4Record5 until you get LOGGING iii Press 4Edit5 to get SAMPLES iv Press 4Modify5 cursor until display reads 500 v Press 4Next5 until you get START vi Press 4Modify5 cursor until you get IMMEDIAT vii Press 4Edit5 to get LOGGING 4 Set up the 8168C a Press 4Wavelength5 press 4Edit5 type 1470 on the numeric keypad press 4Enter5 b Press 4Outp...

Страница 108: ...ecord5 until you get LOGGING 9 Repeat list item 6 to list item 7 for wavelengths 1510nm 1530nm and 1560nm To change the wavelength on the 8153A a Press 4Edit5 4Mode5 4Param5 until appears b Use the Modify keys to set the appropriate value To change the wavelength on the 8168A a Press 4Wavelength5 press 4Edit5 type the wavelength on the numeric keypad press 4Enter5 Always note the MAXIMUM and MINIM...

Страница 109: ...l the connectors you will be using are clean 2 Set up the hardware as shown in Figure D 1 For option 020 rst splice a HP 81102BC patchcord to the pigtail of the Pol port Make sure that all instruments have warmed up Fix all cables with tape so that they won t move during measurements 3 Set up the 8153A a Zero the 8153A press 4Zero5 b Set 8153A to dBm press 4dBm W5 until display shows dBm c Set 815...

Страница 110: ...ng knob Repeat these two steps until absolute maximum on 8153A display is reached Note As the display shows negative values the maximum displayed power is the smallest number displayed 7 Note the displayed value on 8153A in your test record in the column Power after DUT for the associated wavelength 8 Repeat list item 6 to list item 7 for the wavelengths between 1480 to 1570 nm in steps of 10 nm a...

Страница 111: ... 020 you need to cut the spliced patchcords rst 11 Set 8168A to the wavelength to 1470nm Output Power to 100 W 12 Set the 8153A to wavelength 1470nm 13 Note the displayed power on 8153A in your test records in the column Reference Power for the associated wavelength Performance Test D 7 ...

Страница 112: ...ue you need to x your setup and repeat list item 11 to list item 15 16 Calculate Insertion Loss as di erence of Reference Power Power after DUT and note the values in the associated column for each wavelength 17 Check your calculations of Insertion Loss for the maximum and minimum value and note the values on the associated lines The maximum value applies for Maximum Insertion Loss speci cation 18...

Страница 113: ...m 31 326dBm 1 366dB 1500nm 30 268dBm 31 600dBm 1 332dB 1510nm 28 872dBm 30 188dBm 1 316dB 1520nm 29 915dBm 31 254dBm 1 339dB 1530nm 30 431dBm 31 727dBm 1 296dB 1540nm 29 394dBm 30 740dBm 1 346dB 1550nm 29 601dBm 30 934dBm 1 333dB 1560nm 30 345dBm 32 661dBm 1 316dB 1570nm 30 133dBm 31 466dBm 1 333dB Maximum Insertion Loss 1 366dB 1 5dB Minimum Insertion Loss 1 296dB Di erence 0 070dBpp variation of...

Страница 114: ...nction Ratio of Polarizer 1 Make sure all the connectors you will be using are clean 2 Setup the equipment as shown in Figure D 3 Figure D 3 Test Setup for Measuring the Extinction Ratio D 10 Performance Test ...

Страница 115: ...4Enter5 b Set power to 400 W press 4Output Power5 type 400 press 4Enter5 c Activate Optical Output 5 Set up the 8169A a Set to Home position press 4Home5 6 Adjust the tunable lter to get maximum transmission 8153A display shall show maximum reading minimum value at negative sign 7 Set 8169A DUT to maximum transmission a Set the polarizing lter for maximum transmission see Setting the Position of t...

Страница 116: ...ause of random position changes that is you need to approach the minimum position from both sides for both parameters several times 11 Note the measured result in your test record 12 Repeat list item 6 to list item 11 for 1510nm 1530 nm and 1560 nm Always change wavelength setting on all instruments of the test setup and make sure to optimize the maximum transmission of the lter Example Performanc...

Страница 117: ... 8169A Page 1 of 5 Test Facility Report No Date Customer Tested By Model HP 8169A Polarization Controller Serial No Ambient temperature C Options Relative humidity Firmware Rev Line frequency Hz Special Notes Performance Test D 13 ...

Страница 118: ...er HP 81000DF 6 Bare Fiber Adapter HP 81000BA 7 Diamond HMS 10 Connector Interface HP 81000AI 8 FC PC Connector Interface HP 81000FI 2 of 9 Universal Through Adapter HP 81000UM 2 of 10 Diamond HMS 10 HP HRL Diamond HMS 10 HP Patchcord HP 81109AC 11 Diamond HMS 10 HP Bare Fiber Patchcord HP 81101BC 12 Diamond HMS 10 HP HRL Bare Fiber Patchcord HP 81102BC 13 Diamond HMS 10 HP PC Patchcord HP 81101PC...

Страница 119: ...est Description Minimum Result Maximum Measurement No Spec Spec Uncertainty I Insertion Loss Variation with Rotation of 4 and 2 Plates Wavelength Maximum Minimum Di erence Power Power 1470nm dBm dBm dBpp 0 060dBpp 1510nm dBm dBm dBpp 0 060dBpp 1540nm dBm dBm dBpp 0 060dBpp 1560nm dBm dBm dBpp 0 060dBpp Performance Test D 15 ...

Страница 120: ...s Wavelength Wavelength Reference Power Insertion Power after DUT Loss 1470nm dBm dBm dB 1480nm dBm dBm dB 1490nm dBm dBm dB 1500nm dBm dBm dB 1510nm dBm dBm dB 1520nm dBm dBm dB 1530nm dBm dBm dB 1540nm dBm dBm dB 1550nm dBm dBm dB 1560nm dBm dBm dB 1570nm dBm dBm dB Maximum Insertion Loss dB 1 5dB Minimum Insertion Loss dB Di erence dBpp variation of insertion loss with Wavelength dBpp 0 2dBpp d...

Страница 121: ... HP 8169A Polarization Controller Option 020 No Date Test Test Description Minimum Result Maximum Measurement No Spec Spec Uncertainty III Extinction Ratio Wavelength Extinction Ratio 1470nm 40dB dB 1510nm 45dB dB 1530nm 45dB dB 1560nm 40dB dB Performance Test D 17 ...

Страница 122: ... Head HP 81524A 5 Depolarizing Filter HP 81000DF 6 FC PC Connector Adapter HP 81000FA 7 Diamond HMS 10 Connector Interface HP 81000AI 3 of 8 FC PC Connector Interface HP 81000FI 9 Universal Through Adapter HP 81000UM 10 PC PC Through Adapter Seiko 11 Diamond HMS 10 HP HRL Diamond HMS 10 HP Patchcord HP 81109AC 12 Diamond HMS 10 HP PC Patchcord HP 81101PC 2 of 13 Tunable Filter TECOS IFOS 1560CW 14...

Страница 123: ... 021 No Date Test Test Description Minimum Result Maximum Measurement No Spec Spec Uncertainty I Insertion Loss Variation with Rotation of 4 and 2 Plates Wavelength Maximum Minimum Di erence Power Power 1470nm dBm dBm dBpp 1510nm dBm dBm dBpp 1540nm dBm dBm dBpp 1560nm dBm dBm dBpp Performance Test D 19 ...

Страница 124: ...s versus Wavelength Wavelength Reference Power Insertion Power after DUT Loss 1470nm dBm dBm dB 1480nm dBm dBm dB 1490nm dBm dBm dB 1500nm dBm dBm dB 1510nm dBm dBm dB 1520nm dBm dBm dB 1530nm dBm dBm dB 1540nm dBm dBm dB 1550nm dBm dBm dB 1560nm dBm dBm dB 1570nm dBm dBm dB Maximum Insertion Loss dB Minimum Insertion Loss dB Di erence dBpp variation of insertion loss with Wavelength dBpp dB D 20 ...

Страница 125: ...of 5 Model HP 8169A Polarization Controller Option 021 No Date Test Test Description Minimum Result Maximum Measurement No Spec Spec Uncertainty III Extinction Ratio Wavelength Extinction Ratio 1470nm dB 1510nm dB 1530nm dB 1560nm dB Performance Test D 21 ...

Страница 126: ...apter HP 81000FA 7 DIN47256 Connector Adapter HP 81000SA 8 Diamond HMS 10 Connector Interface HP 81000AI 9 FC PC Connector Interface HP 81000FI 10 DIN47256 Connector Interface HP 81000SI 2 of 11 Universal Through Adapter HP 81000UM 12 PC PC Through Adapter Seiko 13 Diamond HMS 10 HP HRL Diamond HMS 10 HP Patchcord HP 81109AC 14 Diamond HMS 10 HP HRL DIN 47256 4108 Patchcord HP 81101SC 15 DIN 47256...

Страница 127: ... 022 No Date Test Test Description Minimum Result Maximum Measurement No Spec Spec Uncertainty I Insertion Loss Variation with Rotation of 4 and 2 Plates Wavelength Maximum Minimum Di erence Power Power 1470nm dBm dBm dBpp 1510nm dBm dBm dBpp 1540nm dBm dBm dBpp 1560nm dBm dBm dBpp Performance Test D 23 ...

Страница 128: ...s versus Wavelength Wavelength Reference Power Insertion Power after DUT Loss 1470nm dBm dBm dB 1480nm dBm dBm dB 1490nm dBm dBm dB 1500nm dBm dBm dB 1510nm dBm dBm dB 1520nm dBm dBm dB 1530nm dBm dBm dB 1540nm dBm dBm dB 1550nm dBm dBm dB 1560nm dBm dBm dB 1570nm dBm dBm dB Maximum Insertion Loss dB Minimum Insertion Loss dB Di erence dBpp variation of insertion loss with Wavelength dBpp dB D 24 ...

Страница 129: ...of 5 Model HP 8169A Polarization Controller Option 022 No Date Test Test Description Minimum Result Maximum Measurement No Spec Spec Uncertainty III Extinction Ratio Wavelength Extinction Ratio 1470nm dB 1510nm dB 1530nm dB 1560nm dB Performance Test D 25 ...

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Страница 131: ...g Make sure to disable all sources when you are cleaning any optical interfaces Under no circumstances look into the end of an optical cable attached to the optical output when the device is operational The laser radiation is not visible to the human eye but it can seriously damage your eyesight Cleaning Materials HP P N Lens Cleaning Paper 9300 0761 Special Cleaning Tips 9300 1351 Blow Brush 9300...

Страница 132: ...he connector surface to remove any remaining particles After use store the tape in the container 5 Protect the connector surface with a cap Cleaning Connector Interfaces Note If any index matching compound was used use an ultrasonic bath with isopropyl alcohol to clean the connector interfaces Apply some isopropyl alcohol to the pipe cleaner and wash the inside the connector interface Using a new ...

Страница 133: ...bushing as this may a ect the optical system NEVER use any index matching compound cleaning uid or cleaning spray Cleaning Detector Windows As used on the HP 81520A and HP 81521B Optical Heads large area 1 Use the blow brush to remove any particles from the surface 2 Wipe the surface with cleaning paper or special cleaning tips Cleaning Lens Adapters Caution Do not use any cleaning uid or cleaning...

Страница 134: ...n be cleaned by using the blow brush If adhesive dirt must be removed perform as follows 1 Using the blow brush remove the dust from the lens surface 2 Press the special cleaning tip to the lens surface and rotate the tip Note Use alcohol for cleaning only then when above procedure does not help or if the dirt is caused by oil or fat E 4 Cleaning Procedures ...

Страница 135: ...00016 12 Motor 1 100016 10 Counter 3 040016 9 Counter 2 020016 8 Counter 1 010016 5 DSP Timeout 002016 4 DSP Communications 001016 3 Calibration Data 000816 1 Battery RAM 000216 0 Calibration Data Checksum 000116 So Selftest Error 0010 would mean that the DSP Digital Signal Processor Communications had failed Selftest Error 12 would mean that the DSP Communications had failed and so had the Batter...

Страница 136: ...ommands but did not nd one 104 Data type error The parser was expecting one data type but found another for example was expecting a string but received numeric data 105 GET not allowed A Group Execute Trigger was received within a program message see IEEE 488 2 7 7 108 Parameter not allowed More parameters were received for a command than were expected 109 Missing parameter Fewer parameters were r...

Страница 137: ...s are not counted 128 Numeric data not allowed Another data type was expected for this command 130 Su x error The su x is the unit and the unit multiplier for the data This error shows that the parser has found an error in su x but cannot be more speci c 131 Invalid su x The su x is incorrect or inappropriate 134 Su x too long A su x can have a maximum of 12 characters 138 Su x not allowed A su x ...

Страница 138: ...ng data was found where none is allowed 160 Block data error This error shows that the parser has found an error in block data but cannot be more speci c 161 Invalid block data The block data is incorrect for example an END message was received before the length was satis ed 168 Block data not allowed Block data was found where none is allowed F 4 Error Messages ...

Страница 139: ...meter error This shows that a parameter error has occurred but the control block cannot be more speci c 221 Settings con ict A valid parameter was received but could not be used during execution because of a con ict with the current state of the instrument 222 Data out of range The data though valid was outside the range allowed by the instrument 223 Too much data The block expression or string da...

Страница 140: ...o more speci c information is available 310 System error An instrument system error has occurred 311 Memory error A memory error has been detected 314 Save recall memory lost The nonvolatile data saved by the SAV command has been lost 315 Con guration memory lost The nonvolatile con guration data saved by the instrument has been lost 330 Self test failed Further information about the self test fai...

Страница 141: ...mple a query followed by a DAB or a GET before the response was completely sent 420 Query UNTERMINATED A condition occurred that interrupted the reception of a query for example the instrument was addressed to talk and an incomplete program message was received 430 Query DEADLOCKED A condition causing a deadlocked query has occurred for example both the input and the output bu er are full and the ...

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