The basic concept of accurate detection of sensors in the thermal shock Test Chamber
In capacitive temperature measuring instruments, thermocouples and RTDs are commonly used electronic devices for temperature detection. Thermocouple temperature measurement is based on the thermoelectric effect. The thermocouple can accurately measure the measured temperature according to the cooperation of the electrical equipment of the measuring instrument. It is a temperature sensor electronic device that can convert the temperature signal into a thermal potential difference signal. When the two contact points a and b are at c and d respectively at different temperatures, this is the closed loop formed before b using two different materials a and a, and there will be a certain in the control circuit in the loop Thermal potential difference, which is often referred to as the "Seebeck effect". The wires a and b are called hot electrodes, and the high temperature end (c) is called work. The upper end (usually arc welded and welded together); the lower temperature end (d) is called the free end (usually at a certain smooth temperature).
Thermal shock Test Chamber thermocouple
According to the relationship between the temperature function and the temperature difference, the range table of the thermocouple measuring instrument can be calculated. According to the specification of any end temperature d=00C, the detection range table is given, and different types of thermocouples have different detection tables.
If the third metal material polymer is connected to the thermocouple control circuit, when the temperature of the 2 contact points connected by the second metal material polymer material is the same, the temperature difference generated by the thermocouple will remain unchanged, so it is not easily affected . The third metal composite connection controls damage in the circuit.
Therefore, when the thermocouple temperature is detected, the measuring instrument can be connected, and after measuring the thermoelectric potential difference, the temperature of the chemical substance in the thermal shock chamber can be grasped.
