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Measuring Examples

32

A4250-5.0

  

HBM: public

FS42

5

Measuring Examples

5.1

Measuring in 5 Steps

To start making an acquisition it takes no more than five
easy steps.

1. Charge the batteries;

2. Turn on the Portable BraggMETER interrogator;

3. Connect one sensor to an Optical Channel;

4. Click Auto Scan Button on the Configuration tab;

5. Hit the Run Button on the Graphical View or Spectral

View tabs.

5.2

Typical Configuration

Typically, a fiber Bragg grating sensing network is divided
into branches of sensors connected in series. In 

Fig. 5.1

there is a scheme of a usual FBG sensing branch.

FS62 Strain

FS63 Temperature

FS64 Tilt

Fig. 5.1

Содержание FS42

Страница 1: ...User Manual English FS42 Portable BraggMETER...

Страница 2: ...osta 277 4470 640 Maia Portugal Tel 351 229 613 010 Fax 351 229 613 020 fibersensing hbm com www hbm com fs Mat 7 2002 4250 DVS A4250 5 0 HBM public 07 2017 Interrogator version v3 2 SW version v5 5 E...

Страница 3: ...13 3 2 Laser Safety 14 3 2 1 Symbols 14 3 2 2 Class 1 Laser 14 3 2 3 General Precautions Considerations 15 3 2 4 Certification 16 4 Operation 17 4 1 Connectors 17 4 2 Status Indicators 18 4 3 Protecti...

Страница 4: ...ies 39 5 4 1 Dirty Connector 39 5 4 2 Broken Connector 41 5 4 3 Reflective Fiber Ending 42 5 4 4 Cut Fiber 43 6 iLog Software 45 6 1 General Details 45 6 1 1 Software Version 45 6 1 2 Software Update...

Страница 5: ...llows high resolu tion to be attained even for long fiber leads and lossy connections Its high dynamic range and broadband tuning range com bined with the available 4 optical channels makes this inter...

Страница 6: ...t Range 100 nm 1500 to 1600 nm Resolution1 1 0 pm Absolute accuracy2 2 0 pm Sensors per channel 25 maximum recommended 3 Optical channels4 4 in parallel Sample rate 1 S s Optical detection Logarithmic...

Страница 7: ...age temperature 20 to 70 C Storage humidity 95 non condensing Shock resistance Class 2 EN 60068 2 27 Vibration resistance9 Class 2 EN 60068 2 6 Mechanical Dimensions w x h x d 360 x 280 x 105 5 mm Mou...

Страница 8: ...over the operating range and maximum measurement range of 2 nm per sensor 4 With simultaneous acquisition 5 Considered as the ratio between the optical power emitted at an optical channel and the mini...

Страница 9: ...e default set tings and original configurations of the interrogator Important System recovery will erase all the data stored in the hard disk 2 1 System Recovery To apply the recovery process follow t...

Страница 10: ...Hard Disk Image Recovery 10 A4250 5 0 HBM public FS42 5 Press Next button Fig 2 2 Fig 2 2 6 Select Non Destructive System Recovery Fig 2 3 Fig 2 3...

Страница 11: ...Hard Disk Image Recovery FS42 A4250 5 0 HBM public 11 7 Press Next Fig 2 4 Fig 2 4 8 Press Yes Fig 2 5 Fig 2 5...

Страница 12: ...Hard Disk Image Recovery 12 A4250 5 0 HBM public FS42 9 Press Yes Fig 2 6 Fig 2 6 10 Allow approximately 10 minutes for the recovery process to complete Reboot the PC into Windows Embedded...

Страница 13: ...nt or the local authorities The correct disposal of your old appliance will help prevent potential negative consequences for the environment and human health For more detailed information about dispos...

Страница 14: ...can be focused by the eye into an extremely small spot on the retina resulting in localized burning and perma nent damage The lasers are classified by wavelength and maximum output power into the sev...

Страница 15: ...o the human eye but it can damage user s eyesight The laser is enabled when the interrogator is turned on Users should never put their eyes at the level of the hori zontal plane of the optical adapter...

Страница 16: ...oduct safety and electromagnetic compatibility according to the following Directives S Low Voltage Directive LVD 2014 35 EU Electrical Safety S Electromagnetic Compatibility EMC Directive 2014 30 EU I...

Страница 17: ...7 4 Operation 4 1 Connectors Left view Right view Fig 4 1 The connectors and buttons in Fig 4 1 are 1 VGA Connector 2 LAN Connector 3 USB Connector 2x 4 Fan 5 Power Connector 6 ON OFF button 7 Optical...

Страница 18: ...s to disk writing Fig 4 2 Number 1 and number 3 in Fig 4 2 can only assume one color When led 1 is green the interrogator is powered on and when led 3 is yellow the hard disk is being written The batt...

Страница 19: ...the handle fixation protection cover S With a Torx screw driver 20 unscrew the handle S Remove the handle S Place Remove the bag from the interrogator S Put back the handle on its place respecting it...

Страница 20: ...ry mod ules model pcga bp2nx see chapter 1 3 Technical Data on page 6 for battery details The numbers in Fig 4 3 refer to 1 4 Hexalobular Csk screws M3x6 2 Hole for opening Fig 4 3 Before turning on t...

Страница 21: ...the battery pack before periods of inactivity longer than 4 weeks see chapter 4 5 1 Removing the Battery Pack 4 5 1 Removing the Battery Pack Changing batteries is a simple process that must be per f...

Страница 22: ...0 HBM public FS42 4 Pull the battery cover rotating on the bottom edge and then remove it To lift up the pack use a screwdriver as shown in Fig 4 4 Do not insert the screw driver more than few millime...

Страница 23: ...4250 5 0 HBM public 23 5 Pull the edge of the battery vertically number 1 in Fig 4 6 6 Remove the battery by sliding it horizontally number 2 in Fig 4 6 7 Repeat the process for the second battery see...

Страница 24: ...Operation 24 A4250 5 0 HBM public FS42 Fig 4 7...

Страница 25: ...the Battery Pack in the Back Panel slot as in Fig 4 8 Take particular attention not to damage the pins of the connection blue rectangle in Fig 4 8 Fig 4 8 2 Slide the battery horizontally number 1 in...

Страница 26: ...ntion should be paid to the cleaning of the connector A dirty connector can compromise the measurement and will degrade the interrogator It is advisable to frequently clean the con nectors using appro...

Страница 27: ...OFF button see Fig 4 10 for 250 milliseconds A pop up will appear to confirm the action Fig 4 10 2 While at Windows environment Select the start button and press shutdown Press and release the ON OFF...

Страница 28: ...een configuration To perform the screen configuration proceed as follows 1 Go to Start and press My Computer 2 Open the file C Program Files UPDD TBCALIB Fig 4 11 3 The screen will become white and a...

Страница 29: ...Operation FS42 A4250 5 0 HBM public 29 Fig 4 11...

Страница 30: ...Operation 30 A4250 5 0 HBM public FS42 Fig 4 12...

Страница 31: ...Operation FS42 A4250 5 0 HBM public 31 Fig 4 13...

Страница 32: ...gMETER interrogator 3 Connect one sensor to an Optical Channel 4 Click Auto Scan Button on the Configuration tab 5 Hit the Run Button on the Graphical View or Spectral View tabs 5 2 Typical Configurat...

Страница 33: ...he employed technology allows a multi functionality meaning that on the same branch it is possible to mea sure Strain Temperature Displacement Pressure Acceleration etc The sensing network can be up t...

Страница 34: ...iberSensing standard wavelengths are FS Line Central wavelength nm OP Line Central wavelength nm N 1503 3 1520 O 1509 7 1525 K 1516 1 1530 L 1522 5 1535 A 1528 9 1540 B 1535 1 1545 C 1541 5 1550 D 154...

Страница 35: ...nd Operation Methods The following definitions are applicable to this equipment only 5 3 1 Wavelength The wavelength value corresponds to the wavelength at the peak of the fiber Bragg grating reflecti...

Страница 36: ...amples 36 A4250 5 0 HBM public FS42 5 3 2 Power The Power value corresponds to the optical power reflected by the fiber Bragg grating at the peak wave length Fig 5 3 It is a relative value from 0 to 4...

Страница 37: ...the considered power level for the FBG peak computation and can be used to disregard side lobes and ground noise In its linear representation it is measured bottom up from the 0 zero power value Fig...

Страница 38: ...Measuring Examples 38 A4250 5 0 HBM public FS42 Fig 5 5 Threshold is a value between minimum 23dB corresponding to 0 005 in linear scale maximum 0 1 dB corresponding to 0 95 in linear scale...

Страница 39: ...connectors are cleaned prior to any connection Other wise dust and moister can be deposited in the interroga tor adaptor and this will compromise measurements In Fig 5 6 a picture of a magnified conn...

Страница 40: ...n optical interrogator adapter use an appropri ate cotton swab there are several cleaning swabs in the market frequently used for telecom embedded in iso propyl alcohol Insert it in the optical adapte...

Страница 41: ...also occur that the interrogator adapter ferrule breaks In this case when an optical connector is inserted it does not get proper alignment and measure ments are compromised A broken ferrule will look...

Страница 42: ...not find any sensor on the array One of the reasons may be the excess of reflected light saturating the detectors When a fiber is perfectly cut Fig 5 10 on the left a large amount of light is reflect...

Страница 43: ...appear from the optical spectrum and will not be detected There may also be the case that the fiber is cut but not completely spread apart e g the fiber is damaged in an area covered with glue This wi...

Страница 44: ...Measuring Examples 44 A4250 5 0 HBM public FS42 Fig 5 11...

Страница 45: ...e version v5 4 6 1 2 Software Update The interrogator software can be updated Whenever the software is updated changes will also be performed in the internal Database Information To ensure no configur...

Страница 46: ...g Fig 6 1 1 General Information Bar Displays information on the current status or instructions 2 Alarm Led If blinking red or yellow this led indicates that an alarm has been reported see section 6 2...

Страница 47: ...tery level reaches 5 it is not possible to power up the interrogator 5 Eject External devices Using this button USB flash drive or other external devices can be safely removed 6 Run Stop Starts and st...

Страница 48: ...2 Graph and Plot The two vertical scales of the graph can be changed To change one side of the scales click on the label near the edge A popup window will appear where the new maxi mum or minimum val...

Страница 49: ...p up Fig 6 4 Fig 6 4 The Collapse button number 5 in Fig 6 2 zeros graphi cal values While this function is ON the button is pre sented in dark gray Once it is pressed again the graphi cal zero functi...

Страница 50: ...section 6 2 1 General and Management Controls page 46 will start the acquisition process While the acquisition is running the Run Stop button changes into its stop status Fig 6 5 Fig 6 5 Data can be s...

Страница 51: ...ed This data can be consulted and transferred under the tab Data View fur ther details are presented on section 6 2 3 Data View page 52 Info and Help button Pressing the Information button number 7 in...

Страница 52: ...al information on the available database space and transferring data Fig 6 6 Displaying Saved Datasets Select the dataset on the datasets dropdown box num ber 1 in Fig 6 6 To display data select the V...

Страница 53: ...rresponds to the data that is displayed on the Data Graph Deleting Saved Datasets The Available Database Space is displayed on a specific box number 6 in Fig 6 6 Pressing the Delete button number 7 in...

Страница 54: ...with buttons that perform actions to the tree elements number 2 in Fig 6 8 element properties box number 3 in Fig 6 8 and an area that changes accordingly to the tree level that is selected number 4...

Страница 55: ...uration with branches that correspond to the optical channels Using the auto scan action the main sensor characteristics will be filled A popup window will appear for the channel selection Fig 6 9 whe...

Страница 56: ...ly by selecting it on the tree menu and pressing the respective button Configuration Fig 6 10 1 Create New configuration 2 Edit configuration The iLog supports multiple config urations and each config...

Страница 57: ...e configuration are Fig 6 11 1 Acquisition number 1 in Fig 6 11 When ON upon start up the interrogator immediately starts to acquire data 2 Logging number 2 in Fig 6 11 When ON upon start up the inter...

Страница 58: ...r the sensor window for defining its characteristics is called The menu is the same as the Edit sensor see num ber 6 from section Sensor page 59 The branch characteristic that can be edited for every...

Страница 59: ...9 Fig 6 13 Sensor Fig 6 14 1 Edit sensor 2 Delete sensor 3 Rename sensor 4 Zero sensor 5 Set sensor Active 6 Test sensor Pressing the Test sensor button the sensor value will be displayed on the graph...

Страница 60: ...ulsory field 3 CWL Central Wavelength 0 is the wavelength value to which wavelength shift is calculated In some sensors for absolute values this should be the stated wavelength on the calibration shee...

Страница 61: ...rrors will occur Important Dynamic ranges should be carefully selected in order to avoid overlap during measurement If this happens read ing errors will occur 5 The Formula box allows the definition o...

Страница 62: ...eate Formula number 2 in Fig 6 16 To select previously saved formulas use the box num ber 3 in Fig 6 16 Selected Formulas can be deleted number 4 in Fig 6 16 Fig 6 17 Name the formula number 1 in Fig...

Страница 63: ...e sensor and prompts the user to choose a color for the sensor number 11 in Fig 6 15 11 Changes the plot color 12 The Scale option defines if the graphical representa tion is to be referred to the lef...

Страница 64: ...rement minus the influence of a temperature change in the sensor s output FMLAS1 lS1 offsetS1 l0 S1 TCS FMLAS1 lS2 offsetS2 l0 S2 TREF Where S S1 is the sensor to be compensated S S2 is the temperatur...

Страница 65: ...effect of the temperature gradient on the structure Sensor Categories Optical Sensor An Optical Sensor is a real Fiber Bragg Grating to which a certain central wavelength corresponds Virtual Sensor Th...

Страница 66: ...m ber 1 in Fig 6 19 using the Sensor List dropdown num ber 2 in Fig 6 19 and the Virtual Keyboard number 3 in Fig 6 19 6 2 5 Spectral View The main purpose of the Spectral View tab is to provide graph...

Страница 67: ...Optical Channel is displayed The Optical Channel that is repre sented can be chosen using the Optical Channel Drop down Box number 2 in Fig 6 20 Information on peak wavelength values as well as on the...

Страница 68: ...resentation are avail able on the buttons above the graph number 6 in Fig 6 20 Fig 6 21 1 Zoom out The Spectrum graph can be zoomed in or out The Zoom In tool is ready every time the cursor is on the...

Страница 69: ...arithmic Fig 6 22 If the user chooses Logarithmic peak detection mode in Configuration tab see number 2 in Fig 6 21 page 68 the OSA graph will be showed in logarithmic mode after starting acquisition...

Страница 70: ...sing the Add button the software will save the wavelength graph naming the file with the instant date and time DD MM YYYY_hh mm ss dat 4 Manage to display or rename a previously saved OSA trace the Ma...

Страница 71: ...A DD MM YYY hh mm ss xls 6 Save as Picture the Spectrum can be saved as a bitmap file to a USB flash drive Naming is automatic OSA DD MM YYY hh mm ss bmp 6 2 6 Alarms This tab is mainly used for gathe...

Страница 72: ...m ber 2 in Fig 6 24 2 Displaying the last 30 day events and alarms that have occurred during handling and usage of the inter rogator number 4 in Fig 6 24 and export them num ber 3 in Fig 6 24 The Alar...

Страница 73: ...er Interface FS42 A4250 5 0 HBM public 73 Sensor Alarms Blinking yellow More than 10 sensor out of range notification per minute Steady green No alarm or less than 10 sensor out of range notifi cation...

Страница 74: ...Graphical User Interface 74 A4250 5 0 HBM public FS42...

Страница 75: ...Graphical User Interface FS42 A4250 5 0 HBM public 75...

Страница 76: ...www hbm com HBM Test and Measurement Tel 49 6151 803 0 Fax 49 6151 803 9100 info hbm com measure and predict with confidence A4250 5 0 7 2002 4250 HBM public...

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