Signal-conditioning theory for resistive and thermoelectric temperature sensors (RTD, thermistor, thermocouple) centers on converting a small, often nonlinear resistance or EMF change into an accurate, linear, adequately sensitive voltage output while managing self-heating error, noise, and reference-junction drift. Key mechanisms include Wheatstone-bridge and operational-amplifier signal-conditioning topologies (each with distinct sensitivity/linearity trade-offs), first-order linearization of exponential thermistor resistance-temperature relationships (via a parallel resistor or a bridge configuration), and cold-junction compensation combined with shielding to preserve thermocouple accuracy over distance and in noisy environments. This belongs to signal-conditioning and transducer-linearization theory within industrial instrumentation, building on the individual sensor physics (RTD, thermistor, thermocouple characteristics) covered elsewhere.
Signal-conditioning theory for resistive and thermoelectric temperature sensors (RTD, thermistor, thermocouple) centers on converting a small, often nonlinear resistance or EMF change into an accurat…