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DAQ for Pressure Test, and later...

DAQ for Pressure Test, and later. Michael J. Haney University of Illinois m-haney@uiuc.edu. In Hand at UofI. 1 GHz PC, 512M RAM, 20G disk Labview, NI-DAQ 3 National Instruments PCI-MIO-16E-1 1.25 MS/s, 12 bit ADC 16 SE / 8 Diff analog input channels

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DAQ for Pressure Test, and later...

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  1. DAQ for Pressure Test,and later... Michael J. Haney University of Illinois m-haney@uiuc.edu Absorber Review Meeting at NIU

  2. In Hand at UofI • 1 GHz PC, 512M RAM, 20G disk • Labview, NI-DAQ • 3 National Instruments PCI-MIO-16E-1 • 1.25 MS/s, 12 bit ADC • 16 SE / 8 Diff analog input channels • 100mV - 10V (FS) programmable gain range • ± 11V max CM; ± 25V OVP (on) Absorber Review Meeting at NIU

  3. Enroute to UofI • National Instruments PCI-GPIB • and cables for 3 peripherals • GPIB software • Labview .VI’s (work in progress) • multichannel logger • file reader Absorber Review Meeting at NIU

  4. Enroute (elsewhere) ? • Keithley 220 current source • Keithley 7001 switch • Keithley 2001 multimeter • all are GPIB peripherals Absorber Review Meeting at NIU

  5. DAQ Plan for Pressure Test • every millisecond • read (up to) 24 stain gauges • via PCI-MIO-16E-1 boards • common-mode permitting... • every second • read strain gauges, pressure, flow • all (40) channels • via Multimeter/GPIB Absorber Review Meeting at NIU

  6. DAQ Plan for Pressure Test(continued) • Spool everything to a file • 10 GB / (24 * 12 bits * 1 KHz)= 77 hours • “start” and “stop” are moot... • Analyze later • find quasi-static measurements between fills • look for vibrations • examine rupture Absorber Review Meeting at NIU

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