The temperature sensor has a wide range of use and a large number, ranking first of various sensors.
Application and principle of temperature sensor:
The thermoelectric sensor is a device that converts the measurement (mainly temperature) into a change in power. Its transformation is a metal -based thermoelectric effect. According to different transformation methods, it can be divided into a thermocouple and thermal resistance sensor . All are divided into temperature sensor thermocouples formula and temperature sensor thermal resistance type.
1.1 Application principle of temperature sensor Thermocueling
The temperature sensor thermocouple is one of the most commonly used temperature detection elements in the industry. Its advantages are:
① High measurement accuracy. Because the temperature sensor thermocouple is directly contacting the object tested, it is not affected by the intermediate medium.
② Wide measurement range. To.
③ Simple structure and convenient use. The temperature sensor thermocouple is usually composed of two different metal wires, and it is not limited by size and beginning. There are protective sleeves outside, which is very convenient to use.
Welding the conductance or semiconductor A and B of the two different materials form a closed loop. When there is a temperature difference between the two attachment points 1 and 2 of the conductor A and B, the electromotive force is generated between the two, and a current current is formed in the circuit. This phenomenon is called the thermal power effect. The temperature sensor thermocouple uses this effect to work.
1.3 Type and structure formation of temperature sensor thermocouple
