What Is an RTD Temperature Sensor?
An RTD (Resistance Temperature Detector) temperature sensor is a device that measures temperature by detecting changes in the electrical resistance of metals.
This sensor operates on the principle that a metal’s electrical resistance varies with temperature. By measuring the resistance changes, the corresponding temperature can be accurately determined.
RTD temperature sensors are highly valued for their precision in measuring temperature, especially in lower ranges. However, they are less effective for high-temperature applications.
There are four main types: platinum, copper, nickel, and platinum-cobalt RTD sensors, each with distinct properties that make them suitable for specific uses.