Data logging and processing equipment
The pulse from triggering switch is employed to trigger the digital recording system and the signals from transducers are sent to Data Acquisition System (DAQ) through signal conditioning cards. The system components are:
| Data Acquisition System |
| System controller |
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Pentium-IV PC with standard/latest peripherals including modems |
| Operating System |
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Window XP |
| Application Software |
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NI LabVIEW 8.0 , MATLAB 6.5 on Windows Platform |
| Data Acquisition Card |
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NI PCI – 6220 M, 2 DAQ cards are installed on the PC.
The first DAQ card is for receiving signals from the trigger and the second one is for controlling signal conditioning module. |
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| Signal Conditioning System |
| Signal Conditioning System |
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NI SCXI-1000 Chassis (4 Slot) |
| Signal Conditioning Card |
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NI SCXI-1520: 4 cards of 8 channels each (total 24 channels used) universal
strain/bridge module with mounting terminal block (4 units of NI SCXI 1314) & chassis |
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| Data Acquisition Card |
Signal Conditioning Card |
| Triggering Switch |
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A switch is used for automatic starting of the
system for data acquisition when the train approaches the instrumented rail. |
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| Power Supply |
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The system will be able to operate on AC 230 V nominal, 50 Hz Single phase supply. |
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| Other Accessories |
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NI SCB –Junction Box, NI SHC68-68 Cable, NI SXCI-1349 Connector, NI CB 68LP |
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