Sensors & Data Acquisition — question 10 of 10
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This is a systems-level question about reconciling two independently-correct measurements that still disagree, common in DAQ systems using redundant sensors.
You have two temperature sensors mounted near the same point on a board, a thermocouple and an RTD, each independently calibrated against a traceable reference and each verified accurate to within their stated tolerance. At steady state, running the same test, they disagree by 3C. Neither is out of spec on its own calibration certificate. How do you figure out what's actually going on, and how would you combine or reconcile their readings for a single trustworthy temperature value?