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Current Excitation Source

  1. Aug 10, 2011 #1
    Hi everyone,

    Im looking to measure the resistance of a 3-wire RTD using a basic data acquisition system and LabVIEW. My DAQ "box" doesn't have any internal excitation sources, and I realize one is necessary to measure resistance across the RTD element. I'm unsure as to how to construct am excitation circuit that will provide me with the appropriate current (~1 mA) for use with the RTD. Does anyone have any diagrams/links that could help me answer this?

  2. jcsd
  3. Aug 10, 2011 #2
    Last edited by a moderator: Apr 26, 2017
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