Why use a ceramic thermocouple sensor pt100 temperature

Ceramic is a recognized high flexibility, corrosion resistance, wear resistance, resistance to impact and vibration of the material. Thermal stability properties of ceramics and its thick film resistance temperature range up to - can make it work 40 ~ 135 ℃, and with high precision, high stability of the measurement. Electrical insulation level & gt; 2 kv, the output signal is strong, long-term stability is good. High characteristics, low price of ceramic thermocouple sensors will be the development direction of pressure thermocouple sensor, in Europe and the United States has a tendency to fully replace other types of thermocouple sensor, also more and more users in China use ceramic thermocouple sensor instead of diffused silicon pressure thermocouple sensor.

thermocouple sensor to choose ceramic materials because ceramic material has the following properties:

because of the ceramic material of high temperature resistance and the ability to resist bad environment impact is very strong, so you're often use them for the process of high temperature environment.

contrast, by controlling its composition and sintering conditions, ceramic microstructure is relatively easy to adjust. All the characteristics of the microstructure of ceramic have significant impact, including their electrical, magnetic, optical, thermal and mechanical properties.

ceramics is mainly made of cheap material preparation, that is to say use it to produce thermocouple sensor will be relatively cheap price.

structure characteristics of the ceramic is closely related to the following factors: grain size, Block) , the separation of adjacent grain surface, Grain boundary) , separating grain surface and interface of the space, and the pore structure. Due to the nature of these different, can use ceramic block, can also use the properties of ceramic surface to manufacture thermocouple sensor.

the preparation of ceramic material has been used in the thermocouple sensor has the following categories:

1, based on the use of its grain physical properties of materials

2, based on the use of its grain boundary properties of materials

3, based on the use of the surface properties of ceramic materials