As with many two-wire resistance measurements, an RTD's lead wires have resistance and long lead wires will greatly affect the measurement accuracy. Therefore, the actual resistance measured by the ...

A typical Pt100 RTD probe. Luckily, resistance temperature detectors ... Circuits for Reading a Resistance Temperature Detector. Unfortunately, RTDs come with a few difficulties.

Resistor-temperature detectors (RTDs), are the most stable and popular temperature sensors. Platinum RTDs allow for a much wider range of temperatures ...

This circuit applies heating power for about 90% of the time and measures the RTD thermoelectric potential during the approximately 10% of off-time . Two switches are required.