From 04:00 PM CDT – 08:00 PM CDT (09:00 PM UTC – 01:00 AM UTC) Tuesday, April 16, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
Is it possible to measure resistance with a PCI-4472 DAQ card? When I use the DAQMX create measurement channel.vi and set it to resistance measurement I get a error message saying 'this physical channel cannont measure resistance, please select voltage....'
The PCI-4472 is a DSA (Dynamic Signal Analyzer) variety of DAQ board. This means it is optimized for measuring dynamic signals and accurately measuring the frequency components. To measure resistance you will provide a current as gwd mentions, and read back the voltage. You will need to take at least 2 measurements (a requirement of the DSA design).
From the voltage measurement you can scale using Ohms Law (R=V/I) to determine resistance.
