Are thermocouples and thermistors the same thing?

Thermocouple is a common temperature detection component. Its function can directly convert temperature signals into electric heating signals by measuring temperature. Display temperature through the instrument. There are various types of thermal resistors available on the market. But the basic structure is roughly the same, and the industrial principles are almost identical!

The working principle of a thermocouple is that it is divided into two different components of conductors, which are connected at both ends to form a circuit. When the temperatures of two junction points are different, an electromotive force will be generated in the circuit. Thermocouples use this working principle to measure temperature. The end of the thermocouple directly used to measure the temperature of the medium is called the working end (also known as the measuring end), and the other end is called the cold end (also known as the compensating end); Connect the cold end to the display instrument or matching instrument, and the display instrument will indicate the thermoelectric potential generated by the thermocouple. Thermocouples are actually a type of energy converter!

What is the difference between thermocouples and thermal resistors?

1. Thermocouples have higher measurement accuracy,. Because the thermocouple is in direct contact with the measured object and is not affected by the intermediate medium! 2. Thermocouples have a wider measurement range, with commonly used thermocouples capable of continuous measurement from -50~+1600 ℃. Some special thermocouples can measure temperatures as low as -269 ℃ (such as gold iron nickel chromium) and as high as+2800 ℃ (such as tungsten rhenium). 3. The structure of a thermocouple is simple and easy to use. Thermocouples are usually composed of two different types of metal wires. There is a protective cover outside, which is very convenient to use!