High sensitivity temperature sensor.Pyroelectric infrared sensor

　　With the development of electronic technology, various electronic circuits are further multifunctional and intelligent, and the application of thermal chips in various situations that require temperature detection, control, compensation, etc. is increasing. At the same time, higher requirements are put forward for the structure of NTC temperature sensors. In order to achieve high sensitivity and fast detection, the structural design of NTC temperature sensors must have strong mechanical performance.

　　The commonly used NTC temperature sensor uses a combination of ceramic material and glass shell to encapsulate the thermal chip, further enhancing the mechanical performance of the temperature sensor. Ceramic material plays a protective role in improving the problem of glass shell cracking or even electrical performance failure when pulling pins out of the glass shell. However, ceramic material is relatively brittle and prone to cracking under force, and the protective effect is not significant.

　　Therefore, Aisheng provides a high-temperature and highly sensitive temperature sensor with glass and silicone splicing, which has advantages such as high mechanical strength, less cracking of the glass shell, and short response time to temperature. It is composed of an NTC thermosensitive chip, two leads, a glass shell, and a silicone wrapping layer. It uses a silicone wrapping layer to improve the mechanical strength of the glass sealed temperature sensor. The silicone can tightly bond with the glass shell and has properties such as shock resistance, insulation, sealing, moisture resistance, and aging resistance. Therefore, its mechanical properties are improved, and the glass shell can be well protected and not easily cracked under external forces. Moreover, the silicone wrapping layer covers the connection between the lead and the glass shell, which can improve the problem of cracking at the connection between the glass shell and the pin caused by pulling or bending two pins when assembling the temperature sensor. The temperature sensing surface can be in close contact with the object to be measured, increasing the contact area between the two,

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