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Nor265 User Guide

P.O.Box 24

N-Lierskogen

Norway

www.norsonic.com

Содержание Nor265

Страница 1: ...Im265_1Ed1R2En December 2004 ...

Страница 2: ...rein Furthermore Norsonic AS assumes no responsibility for any infringement of the intellectual property rights of third parties wherever applicable which could result from such use Norsonic AS reserves the right to amend any of the information given in this manual in order to take account of new developments If you wish to communicate with us please feel welcome Our address is Norsonic AS P O Box...

Страница 3: ...eration 14 5 1 Power 14 5 2 Front panel 14 5 3 Boom operation 15 5 4 Turntable operation 16 6 Control from a PC Program Nor1029 17 6 1 General 17 6 2 Communication setup 17 6 3 Main display 18 6 3 1 Local Remote 19 6 3 2 Go home 19 6 3 3 Angle indicator 19 6 3 4 Go to 19 6 3 5 Go relative 19 6 3 6 Sweep 19 6 3 7 Rotation 20 6 3 8 Stop 20 6 3 9 Error messages 20 6 4 Manual control 20 7 Modifying th...

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Страница 5: ...t of the switch positions 1 2 8 corresponds to 90 and 180 sweeps with different sweep speeds These settings may be redefined by using remote commands if the unit is equipped for remote operation Extended control of the device is possible by remote commands from a computer by use of the optional serial interface This allows accurate control of angular position speed and acceleration The unit is rob...

Страница 6: ...asurement is normally set to one or a whole number of oscillations When delivered the switch for manual operation is pre programmed to default sweeps of 90 and 180 respectively If Nor265 is equipped for remote operation option the user interface may be used to re programme these settings to obtain other sweeps or to obtain specified positions The reprogramming of the user interface is most easily ...

Страница 7: ...ed to rotate a device continuously or to move it to a specified angle The speed and acceleration for a movement may be specified accurately within a wide range Main application is measurement of directional response of an acoustic transducer Although the turning moment is limited to prevent damage theNor265 may carry significant loads The position and the speed are computer controlled and ensure a...

Страница 8: ...me command either from the user interface or as a remote command After the start of the command the table will turn 5 degrees clockwise and then counter clockwise until the home position is detected When the home position is detected this position will be defined as 0 A light emitting diode LED marked Home on the front indicates the status for the home position The LED will flash until the home po...

Страница 9: ...pecified as the time second it takes to obtain the specified speed The same time is used for deceleration The default value is 2 seconds If a large or heavy object is placed on the table a larger value for acceleration time should be used in order to limit the torque needed The speed and the angle as the function of time are shown on the figure below v0 Ta Ta time Speed time 1 2 a a Ta Ta Ttot ...

Страница 10: ...60 Angle of rotation Time ST SP Sweep time A B When the sweep is started the sweep may be described as a consecutive sequence of Go to A Go to B Go to A etc until the sweep is stopped The specified acceleration time is used for acceleration and deceleration When the sweep is started manually the default vale for acceleration time is used Vibrations See section 10 Technical design of how to reduce ...

Страница 11: ...crophone clip for microphones Mounting hoop cradle for tripod with washers and ratchet handles screws Tripod Allen key Option 1 may be ordered and installed after delivery of main unit The tripod is delivered with a separate Instruction manual covering how to adjust the legs etcetera Note that for this application all legs must be in the inner positions due to the weight of the device Furthermore ...

Страница 12: ...ng shaft lies horizontal Mount the microphone as requested You may place the normal Norsonic microphone cable such as Nor1408 through the hollow main shaft 4 3 Turntable option Option 2 The kit for turntable consists of Turntable with mounting adaptor Chuck with mounting adaptor Allan key Option 2 may be ordered and installed after delivery of main unit 4 3 1 Turntable Mount the clamp on the main ...

Страница 13: ...aft as far down as possible and secure the fastening Allen screws 4 4 Remote operation Option 3 Option 3 has to be ordered before delivery and is installed at the factory Option 3 consists of RS232 interface Cable for RS232 type Nor1463 2 m Program Nor1029 Installation of the program is described in a leaflet supplied with the program CD ...

Страница 14: ...sweep time 60 sec 4 Sweep 180 sweep time 30 sec 5 Sweep 90 sweep time 15 sec 6 Sweep 90 sweep time 30 sec 7 Sweep 90 sweep time 60 sec 8 Stop When the Nor265 is switched on the actual angular position will be reference 0 and the sweep is relative to this start angle Thus the sweep will be 90 from this start angle or 180 dependent on the sweep selected However it the switch is set to Go home before...

Страница 15: ...o allow the shaft to rotate freely Turn the body so the main shaft is horizontal and adjust the position of the counterweight until the rod with the microphone is in balance as shown on the figure below Switch on the device If you want to use the fixed reference angle turn the switch to the position Go home Wait until the LED marked Go home lights continuously Select the appropriate sweep range an...

Страница 16: ...of the device is limited in order not to harm the user or devices placed on or around the turntable Still it can carry considerable loads in any direction Note therefore that the loads have to be balanced around the turning axis If a large or heavy object is placed on the table increase the acceleration time in order to reduce the torque needed to produce the required acceleration The table will n...

Страница 17: ...emote commands for communication See section 8 2 2 List of commands for further details This list also contains full information about the valid range for all parameters After installation of the software you will get a new program group on the start menu When you start the program Nor1029 tries to set up the Nor265 with the default settings from the virtual panel of the program If this communicat...

Страница 18: ...rt When these settings are finished you may return to the main display The program is most conveniently operated with the combination of the PC mouse and the keyboard Point on the field to enter the numeric values left click to place the cursor and type in the number or string as requested Press the virtual buttons by pointing and left clicking with the mouse 6 3 Main display ...

Страница 19: ... the table is smooth 6 3 4 Go to Specify the angle to which you want to go Note that the angle may correspond to a number of revolutions The maximum angles are 241592002 which corresponds to more than 600 000 revolutions The speed is always specified as time in seconds needed for a full 360 rotation if the turntable runs continuously The acceleration Accel is the time to obtain the specified speed...

Страница 20: ...ror message field The message may be cleared by operation of the virtual clear buttons 6 4 Manual control By selecting the manual control from the program Nor1029 you may send the remote commands to the table Nor265 as stings This gives you full access to all remote commands See the figure above for the layout of the user panel You specify the string to be sent in the upper field The response from...

Страница 21: ...n rotate continuously with specified speed and direction sweep between two specified sweep limits As an example if you program switch position 1 to stop and position 2 to go relative 10 the boom will step 10 counter clockwise each time the switch is moved from position 1 to 2 The current value while programming will be used for the speed and acceleration time Note that you are not allowed to redef...

Страница 22: ...switch position to be programmed 1 8 from the first row Select the wanted function from the second row and enter all parameters in the appropriate field below the selected function Press the Program button on the third row If you want a list of the current setting or want to verify that the wanted changes has been made press the button Read Current SetUp A list of the setting for switch position 1...

Страница 23: ...tor use a null modem cable like Nor1463 for the connection 8 2 Remote commands 8 2 1 General Remote operation is done most easily by using the accompanying MS Windows program Nor1029 This allows easy control of Nor265 from WS Windows based PC The program may also be used for programming the operation of the rotary switch on the front of Nor265 If you are using the program you may skip most of the ...

Страница 24: ...our computer does not have an RS232 serial interface we recommend connecting the turntable to the USB port by using a commercially available USB RS232 adaptor If a command contains a parameter there must be a space between the command and the parameter When a numeric value is entered for the parameter both comma and dot may be used as decimal symbol The number may be entered with any number of dec...

Страница 25: ... angle parameter out of range w E Unknown command w P Missing space before parameter w W Sweep time too short w X Command is not legal while in local operation w N Home detector not found w I Illegal command during home process w O Illegal position for PP command w B Baud rate out of range w OK no error detected w1 w4 means last four errors detected since last FS command Instrument identification ...

Страница 26: ...r x dddd d Go continuous positive direction CP None The table is turned continuously in the positive direction with the speed set by the TR instruction Go continuous negative direction CN None The table is turned continuously in the negative direction with the speed set by the TR instruction Set default set up MR None Set parameters as speed acceleration switch positions and baud rate to default v...

Страница 27: ... the switch position number 1 Type Info CR LF 2 Type Info CR LF 3 Type Info CR LF 4 Type Info CR LF 5 Type Info CR LF 6 Type Info CR LF 7 Type Info CR LF 8 Type Info CR LF The Type of operation is indicated by a number between 0 and 5 The Info will contain a list of parameters relevant for the Type The designators for the parameters correspond to the commands in the list for remote commands Each p...

Страница 28: ...tions May also be set to rotate continuously at a specified direction and speed Resolution 0 01 Angle accuracy no torque Better than 0 8 Typical better than 0 05 if moved in same direction Max load any direction 500 N Max torque loading 2 Nm Typical error from loading torque 0 3 deg Nm Power supply 90 264V AC 47 440 Hz Fuses 2 5 A slow blow IEC 60127 Remote operation RS 232 interface 9600 115200 b...

Страница 29: ...ain a suitable reference angle Due to the design the torque will partly depend on the actual angle for the motor This modulation of the torque may under certain circumstances create small vibrations that may be enhanced by a resonance in the device placed on the table The torque of the device is limited in order not to harm the user or devices placed on or around the turntable Still it can carry c...

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Страница 31: ... directive This product has been manufactured in compliance with the provisions of the relevant internal Norsonic product standards All our products are tested individually before they leave the factory Calibrated equipment traceable to national and international standards has been used to carry out these tests This Declaration of Conformity does not affect our warranty obligations Tranby December...

Страница 32: ...Nor265 User Guide 32 P O Box 24 N Lierskogen Norway www norsonic com ...

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