Difference between revisions of "20.309:DAQ System"

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(New page: Each lab PC is equipped with a [http://www.ni.com/pdf/manuals/370503k.pdf PCI-MIO-16E-1] data acquisition (DAQ) card. ([http://www.ni.com National Instruments] renamed the PCI-MIO-16E-1 t...)
 
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Each lab PC is equipped with a [http://www.ni.com/pdf/manuals/370503k.pdf PCI-MIO-16E-1] data acquisition (DAQ) card. ([http://www.ni.com National Instruments] renamed the PCI-MIO-16E-1 to PCI6070E.)
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Each lab PC is equipped with a National Instruments [http://sine.ni.com/nips/cds/view/p/lang/en/nid/207096 USB-6212] data acquisition (DAQ) card.
  
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The PCI-MIO-16E-1 is a PCI card that has a single, 12-bit analog to digital converter with a maximum sample rate of 1.25 MHz. A multiplexer selects from among 16 single-ended or 8 differentail input signals. In addition, the card includes an instrumentation amplifier with a programmable gain of 0.5 to 100. The card also supports two 12 bit analog output channels, 8 digital input and output lines, and two 24-bit counter/timers with a maximum clock rate of 20 MHz.  
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The USB-6212 has 16, 16-bit analog input channels which can, in sum total, accomplish 400 thousand samples per second (400kS/s). A multiplexer selects from among 16 single-ended or 8 differential input signals. The card also supports two 16 bit analog output channels with an update rate of 250 kS/s and an output range of +/- 10 V and up to +/- 2 mA.  
  
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A 10 meter cable runs from the DAQ card to a [http://www.ni.com/pdf/manuals/321183a.pdf BNC-2090] signal breakout box. The BNC-2090 provides BNC type connectors for each of the DAQ board’s analog inputs and outputs.
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Finally, the USB-6212 has 32 digital input/output channels and a digital ground. A 50 kOhm pull-down resistor is typically used in series with connections to these channels.

Revision as of 19:56, 19 October 2010

Each lab PC is equipped with a National Instruments USB-6212 data acquisition (DAQ) card.

The USB-6212 has 16, 16-bit analog input channels which can, in sum total, accomplish 400 thousand samples per second (400kS/s). A multiplexer selects from among 16 single-ended or 8 differential input signals. The card also supports two 16 bit analog output channels with an update rate of 250 kS/s and an output range of +/- 10 V and up to +/- 2 mA.

Finally, the USB-6212 has 32 digital input/output channels and a digital ground. A 50 kOhm pull-down resistor is typically used in series with connections to these channels.

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