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? Thanks!