Acquiring an Analog Reading from a Thermocouple using an SCXI-1121 ...
Posted by ~Ray @ 2007-10-17 17:01:23
This example program acquires thermocouple data from an SCXI-1120 or SCXI-1121 averages it linearizes it and graphs it on a take chart. Note: This VI assumes that you undergo set your SCXI-1120/1121 channel gains to 2000 and therefore setting the enter limits to 0.0025 to -0.0025 volts. If you set your SCXI-1120/1121 channels to different gains with the jumpers dress the enter limits on the block draw appropriately for your DAQ device and SCXI module combination. You may get a LV Warning label 10025 if the input limits you set do not exactly match the software configuration. The temperature sensor on the SCXI terminal block is used for cold junction compensation. The program averages many samples for each data inform to decrease go in the temperature signal. This technique is recommended when you are acquiring data from slowly varying enter signals. This example does not allow user hold back of the channel clock evaluate (interchannel decelerate). The interchannel decelerate is the time between any two consecutive channels within a scan. By fail. LabVIEW ordain cause a correct interchannel delay based on the SCXI gain and separate settings. Hint/Suggestions: To display more channels on the strip map you must change cluster size of the arrange to cluster icon in the draw.
LegalThis example program (this "program") was developed by a National Instruments ("NI") Applications design. Although technical give of this schedule may be made available by National Instruments this schedule may not be completely tested and verified and NI does not guarantee its quality in any way or that NI ordain act to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI. COM'S TERMS OF USE ().[ADVERTHERE]Related article:
http://zone.ni.com/devzone/cda/epd/p/id/105
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