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17

FS22DI
OPERATION

Each optical Interrogator can synchronize its internal clock with an NTP server. It is possi­
ble to achieve accuracies of 1ms or higher, depending on whether or not a dedicated NTP
server is being used.

Further information about NTP can be found at 

http://www.ntp.org

Measuring systems typology

A measurement system can be as simple as a single interrogator or a bit more complex
with combined interrogators with the same or different sampling rates, and interrogators
combined with other equipment.

For the usage of a single interrogator no special synchronization
is needed.

BraggMONITOR DI software can only operate one interrogator at
a time. If an NTP server is running on the same PC as the Brag­
gMONITOR DI, the interrogator internal clock – hence Brag­
gMONITOR DI – will sync.

If more than one interrogator is used, synchronization becomes
important and if an NTP server is running the equipment will
start synching as soon as a first communication from the server
is received.

Ethernet

Switch

NTP

NTP

NTP

NTP Server

Fig. 3.10

Synchronizing multiple interrogators

A hybrid measurement system is a system composed by differ­
ent equipment types and technologies that can be operated with
different sampling rates. Taking the example of HBK families a
hybrid system could be a combination of Interrogators with
QuantumX

.

Single interrogator

Multiple
interrogators

Hybrid

Содержание FS22DI

Страница 1: ...FS22DI Industrial BraggMETER DI ENGLISH User Manual...

Страница 2: ...los Costa 277 4470 640 Maia Portugal Tel 351 229 613 010 Fax 351 229 613 020 info fs hbkworld com www hbm com fs Mat DVS A04248 07 E00 00 02 2022 Interrogator version v2 0 SW version v1 8 E Hottinger...

Страница 3: ...7 2 3 2 Degree of protection 7 2 4 The marking used in this document 8 3 Operation 9 3 1 Connectors 9 3 1 1 Standard 9 3 1 2 Rack Mountable 10 3 2 Setting Up 10 3 2 1 Power Supply 10 3 2 2 Optical Co...

Страница 4: ...Commands 37 6 BraggMONITOR DI Software Details 45 6 1 Software Version 45 6 2 Install and Uninstall Software 45 6 2 1 System Requirements 45 6 2 2 Software Installation 45 6 2 3 Software Uninstall 46...

Страница 5: ...g networks acquiring a large number of sensors simultaneously providing 1000 S s acquisition rates with sub picometer resolution The BraggMETER is available either in Standard and Rack mountable forma...

Страница 6: ...product HBK FiberSensing is a manufacturer registered in the ANREEE Associa o Nacional para o Registo de Equipamentos El ctricos e Electr nicos under number PT001434 HBK FiberSensing celebrated a Ute...

Страница 7: ...cal connectors Adequate eye protection should always be required if there is a significant risk for eye injury When an optical connector is not in use no optical cable plugged to the interrogator a pr...

Страница 8: ...ngerous situation in which failure to comply with safety requirements can result in slight or moderate physical injury Notice This marking draws your attention to a situation in which failure to compl...

Страница 9: ...ors 3 1 1 Standard Front view Back view Fig 3 1 Front and back view of FS22DI Standard The connectors and buttons in Fig 3 1 are 1 Optical Output Connectors FC APC 2 ON OFF Button 3 Power Connector 4...

Страница 10: ...put Connectors 4 Power Connector 5 Electric Fuse 6 Safety Power Button 7 Fans 8 Ethernet Connector 3 2 Setting Up 3 2 1 Power Supply To start the FS22 Industrial BraggMETER DI interrogator connect the...

Страница 11: ...performance of the interrogator It is advisable to frequently clean the connectors using appropriate tools FS22 Industrial BraggMETER DI can have one four or eight optical channels in parallel 3 2 3 E...

Страница 12: ...already on and responsive but the optoelectronic module is still warming up After approximately 60 seconds it should stay on permanently This means that the interrogator is able to measure Status LED...

Страница 13: ...ED ON Fig 3 5 Power led while pressing Switching Off between 6 s and 10 s 3 6 Operating the Interrogator 3 6 1 Network Properties To operate the FS22 Industrial BraggMETER DI from a personal computer...

Страница 14: ...FS22DI OPERATION 14 Fig 3 6 Local Area connection Status u Select the Internet Protocol TCP IP and click on the Properties button Fig 3 7 Fig 3 7 Local Area connection properties...

Страница 15: ...rogator defaullt network properties are 10 0 0 150 255 0 0 0 0 0 0 0 These can be changed using the SCPI commands or the BraggMONITOR DI Software See Section X X Change IP for further details The inte...

Страница 16: ...d to physically change the IP address of the interrogator press the ON OFF button for more than 10 seconds to reset the interrogator When the button is being pressed for 10 seconds the POWER LED blink...

Страница 17: ...BraggMONITOR DI software can only operate one interrogator at a time If an NTP server is running on the same PC as the Brag gMONITOR DI the interrogator internal clock hence Brag gMONITOR DI will syn...

Страница 18: ...devices and the NTP server need some settling time to achieve the best synchronism possible The following features for NTP synchronization are available Number of devices to be synchronized Unlimited...

Страница 19: ...ALID COMMAND That means that the command does not exist Check if the spelling is correct NACK COMMAND NOT ACCEPTED AT CURRENT STATUS It is not possible to execute the command sent at the current statu...

Страница 20: ...for future reference The continuous acquisition state allows continuous wavelength acquisition over all optical channels at 50 100 200 500 or 1000 S s The FS22 Industrial BraggMETER DI interrogator c...

Страница 21: ...Uisition STAR ACQUisition OSATrace CONTinuous STARt X command is available at 50 S s only ACQUisition WAVElength CONTinuous STARt ACQUisition WAVElength CONTinuous NTPSync STARt The FS22 Industrial Br...

Страница 22: ...tinuous acquisition commands can only be executed in the ready state In this operational state the FS22 Industrial BraggMETER DI interrogator only replies to the commands ACQUisition STOP IDENtificati...

Страница 23: ...le optical channels have simultaneous acquisi tion meaning that the sensing network can have a large number of fiber Bragg grating sensors interrogated at the same time The employed technology allows...

Страница 24: ...plicable to this equipment only 4 2 1 Wavelength The Wavelength value corresponds to the wavelength at the peak of the fiber Bragg grat ing reflection spectrum commonly referred as Bragg wavelength Fi...

Страница 25: ...MPLES 4 2 2 Power The Power value corresponds to the optical power reflected by the fiber Bragg grating at the peak wavelength Fig 4 3 It is a relative value from 0 to 4095 FBG reflection spectrum Pow...

Страница 26: ...n is an amplification value applied to the received reflected signal in order to opti mize the measured power It is a value from 0 to 255 FBG reflection spectrum with Gain 10 Power FBG reflection spec...

Страница 27: ...BG peak compu tation and can be used to disregard side lobes and ground noise It is a value from 200 to 3200 definable for each optical channel individually It is measured bottom up from the 0 zero po...

Страница 28: ...can be deposited in the interrogator s optical adaptors which will com promise measurements In Fig 4 6 a picture of a magnified connector is presented The dark gray circle corresponds to the fiber cla...

Страница 29: ...1 FSCLEANER from HBK or similar Insert it in the optical adapter number 1 in Fig 4 8 and press it against the inside of the connector to clean Alternatively use an appropriate cotton swab there are s...

Страница 30: ...hen a fiber is perfectly cut Fig 4 10 on the left a large amount of light is reflected right back into the core of the fiber in such an angle that it gets guided back heading to the interrogator detec...

Страница 31: ...the fiber is damaged in an area covered with glue This will cause a Fabry P rot effect the light will suffer multiple reflections inside the cavity creating sinusoidal background reflection Fig 4 11 s...

Страница 32: ...or number 5 in Fig 3 2 To replace the fuses release the top and bottom springs of the fuses support Fig 4 12 and then remove the piece Fig 4 13 Fuse characteristics S Rated voltage 250 Volt AC S Inter...

Страница 33: ...turn r and line feed n Fig 5 1 TCP Communication Process Communication on FS22 Industrial BraggMETER DI is made via port 3500 Continuous data streaming is received via port 3365 The commands for the F...

Страница 34: ...he return string is a list sepa rated by consisting of Manufacturer Unit Name and Revi sion Number of Channels Serial Number and Date Example Command IDEN Answer ACK HBM FiberSensing FS22DI v2 0 08 04...

Страница 35: ...Example Command RECA Answer ACK Status STAT Queries the operation condition status of the FS22 Industrial BraggMETER DI interrogator Returns the current status of the instrument 0 error 1 ready 2 fre...

Страница 36: ...ACK 2011 09 23 SYST DATE YYYY MM DD Sets the FS22 Industrial BraggMETER DI interrogator date Sent format must be year month and day separated by Example Command SYST DATE 2011 09 23 Answer ACK Synchro...

Страница 37: ...onal Example Command SYST IPAD 010 000 000 134 255 000 0 00 000 000 000 000 000 Answer ACK 5 1 4 Acquisition Commands ACQU STAR Starts the acquisition of the fiber Bragg grating sensors in all channel...

Страница 38: ...ange from 0 to 255 Example Command ACQU CONF GAIN CHAN 0 Answer ACK 3 ACQU CONF THRE CHAN X T Sets the threshold value for the peak detection algorithm in the X channel of the FS22 Industrial BraggMET...

Страница 39: ...mple Command ACQU CONF RATE Answer ACK 200 Free Acquisition ACQU WAVE CHAN X Returns the peak wavelengths of the fiber Bragg grating sensors in channel X of the FS22 Industrial BraagMETER DI interroga...

Страница 40: ...knowledged and data reply to this command is sent through port 3500 The optical spectrum trace reply is a list of power values and a list of wavelength values separated by There is a direct correspond...

Страница 41: ...a set of three hexadecimal digits For example the value D13 represented with hexadecimal digits corresponds to a power value of 3347 in decimal notation The wavelength values are separated by and writ...

Страница 42: ...ime with the format YYYY MM DD HH MM SS Sample data packets also start with and the central wave length values for different fiber Bragg sensors are separated by a comma being the information correspo...

Страница 43: ...bytes payload length c 8 bytes timestamp LWORD1 seconds since 1 1 1970 LWORD2 fraction of current second mapped to an integer range of 32 bit i e 0 5 s would correspond to 2 32 d 2 bytes sensors CH0 2...

Страница 44: ...Port 3500 ACK Port 3365 OC0_WL0 OCn_WLy Wavelength number y on optical connector n OC0_WL1 OC7_WL0 OC0_WL1 S0 Sn Number of sensors on optical connector n S2 S1 S3 S4 S6 S5 S7 SYNC 0 TIMESTAMP LWORD1...

Страница 45: ...Windows Vista at least 2 048 Mbyte for Windows 7 or higher S Graphics card and screen with a resolution of 1 024 x 768 pixel or higher S Approx 1 GByte of free storage capacity for the program install...

Страница 46: ...elect BraggMONITOR DI Software u Click Uninstall Change Option and follow the steps 6 3 Running the Software 6 3 1 Network Properties To operate the interrogator the PC network properties should be se...

Страница 47: ...onfigure the application to always open with Administrator privileges right click on the software icon and select Properties Compatibility Check the box Run this pro gram as administrator see Fig 6 2...

Страница 48: ...r which is always active is where the main acquisition actions can be per formed The current date and time are shown on the left number 1 in Fig 7 2 Before starting acquisition it is necessary to esta...

Страница 49: ...d IP Address a window will pop up Fig 7 4 and a new IP Address has to be defined number 1 in Fig 7 4 and confirmed number 2 in Fig 7 4 by the user Fig 7 4 Define IP Address Information The FS22 Indust...

Страница 50: ...The naming of the file is automatic and corresponds to the timestamp of the last mea surement recorded ex BraggMONITOR DI Data 2015 07 16 14 48 40 2015 07 16 14 49 06 txt Saved data file collects the...

Страница 51: ...Excel Workbook proceed as follows Once Microsoft Excel is opened press button From Text from menu Data Get External Data see Fig 7 7 and select the file data file Fig 7 7 Import data from text file in...

Страница 52: ...FS22DI BRAGGMONITOR DI USER INTERFACE 52 Fig 7 8 BraggMONITOR DI Data files Fig 7 9 Excel text Import Wizard Step 1...

Страница 53: ...53 FS22DI BRAGGMONITOR DI USER INTERFACE Fig 7 10 Excel text Import Wizard Step 2 Fig 7 11 Excel text Import Wizard Step 3...

Страница 54: ...on General information about the software and the interrogator can be displayed by pressing the info button number 5 in Fig 7 2 7 1 3 Exit Application To exit BraggMONITOR DI Software application pres...

Страница 55: ...esentation Zoom In and Zoom Fit To adjust the graphical representation use the zoom in and zoom fit functions Zoom in by selecting an area on the displayed graph and zoom fit by pressing number 3 in F...

Страница 56: ...the spectral response of the sensors connected to the interrogator The full spectrum contains approx 7020 data points corresponding to the reflected opti cal power in dBm from 1500 nm to 1600 nm with...

Страница 57: ...the selected channel is represented in number 10 in Fig 7 15 Information The number of detected peaks per channel is limited in accordance to the sampling rate In case there are more peaks than the li...

Страница 58: ...fining the gain for an acquisition at higher speeds than 50 S s Threshold defines the line between usable signals and noise It is an integer value between 200 and 3200 Operations for getting and defin...

Страница 59: ...the sensors calibration sheets might be needed The BraggMONITOR DI allows editing saving and opening sensor configurations The configuration corresponds to the identification and the definition of th...

Страница 60: ...guration with all the found sensors This configuration sets the current measured wavelength as cen tral wavelength 0 with a default range of 2 5 nm that can be edited to a minimum of 0 5 nm Important...

Страница 61: ...ly by using the BraggMONITOR DI soft ware By pressing the change IP button number 3 on Fig 7 17 a pop up will appear Fig 7 18 Fig 7 18 Change IP address Fill in the new IP address subnet mask and gate...

Страница 62: ...ampling rate can be defined in samples sec ond The available options are 50 100 200 500 and 1000 S s Important If the interrogator sampling rate is defined to 1kHz 1000 S s the gain value should be hi...

Страница 63: ...CWL Reference wavelength from which wavelength shift x is calculated Range Safety bands defined to avoid crosstalk between sensors Each sensor has its own operation range For instance if we have a cen...

Страница 64: ...gh it is also possible to copy and paste from other locations If the desired output is wavelength shift insert x on formula textbox Do Do Not 11 3 x 11 3x 11 3 x 2 105 4 x 30 11 3 x 2 105 4 x 30 Note...

Страница 65: ...me Central wavelength nm Range nm and Formula separated by semicolons as in numbers 2 3 4 and 5 in Fig 7 22 Fig 7 22 Configuration file This file might be edited in Notepad or Excel see Opening Data i...

Страница 66: ...ns on page 33 for a list of the commands available to communicate with the interrogator Commands are inserted on the command line number 3 in Fig 7 24 and sent by press ing Enter or the send cmd butto...

Страница 67: ...h time a new command is sent a shortcut at the scroll down box is created as shown in Fig 7 25 Fig 7 25 Previously sent comments selection Important When the user leaves the SCPI Interface tab the int...

Страница 68: ...HBK Hottinger Br el Kjaer www hbkworld com info hbkworld com A04248 07 E00 00...

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