Here's how to easily identify these three different types of sensors - Thermocouple vs RTD vs Thermistor. Understanding the differences will help you in either utilizing these sensors or help understand what to replace them with.
A thermocouple uses two metal wires to produce a voltage relative to the temperature present in the junction between them. There are many specialized kinds of thermocouples - they can combine different metals to measure various characteristics and temperature ranges, and produce specialized calibrations.
RTD vs Thermistor -
In recent years, thermistors have become increasingly popular due to improvements in meters and controllers. Today’s meters are flexible enough to allow users to set up a broad range of thermistors, and to interchange the probes easily.
However, unlike RTDs which offer established standards, thermistors curves vary depending on the manufacturer. A thermistor’s system electronics need to match the curve of sensor. range of temperature sensors The main difference between RTDs and thermistors is the material they are made of. While RTD resistors are pure metal, thermistors are made with polymer or ceramic materials.
As in the previous section, I am going to compare specific criteria rather than comparing thermistors and RTDs in general.
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