Memory Card
So now we start with the last type or better one of the last type of sensors, the first active sensor which is a temperature sensor and it is called thermocouple.
Let’s start wiht a comparison between thermocouple, RTD, thermistor, semiconductor:
- The main difference between this kind of sensor, the range.
- ==The most important thing is that both RTD and thermocouples can operate at very high temperature with respect to this kind of sensor here==.
- Thermocouples have a structure which is really, really simple.
- Disadvantages and advantages of thermocouples:
- They need core junctional compensation so the result is not so easy.
- They have a low voltage output.
- Also high accuracy and repeatability.
But the best accuracy you find with RTD sensors.
- So thermocouples: high sensitivity, easy to use highest range and simplest structure