In the automotive, industrial and other fields, the accurate measurement of temperature and pressure is essential to ensure the proper operation and safe operation of equipment. As a key component of the temperature and pressure combination sensor, its performance directly affects the stability of the whole temperature control system. NTC thermistor is very sensitive to temperature changes, so it is often used as the temperature measurement core of temperature and pressure combination sensor to escort its work.

Temperature and pressure combination sensor is generally assembled by shell, protective tube, NTC thermistor and other components. Thermistor is sealed in a protective tube, so that its temperature sensing head can fully contact the measured temperature medium, to achieve the purpose of accurate temperature monitoring. In the traditional production process, the installation of NTC and temperature and pressure combination sensor is generally carried out by welding or injection molding process. These two production methods have the following limitations:

Welding process: May be affected by chemical corrosion, which may lead to the failure of the NTC thermistor;
Injection molding process: Cracks may appear in the process of thermal expansion and contraction, which will affect the temperature measurement performance of the thermistor.

In order to realize the reliable connection between NTC thermistor and temperature and pressure combination sensor better, and ensure that it has great sealing performance, most manufacturers will use the riveting process for encapsulation. This process is simple and efficient, which protects the NTC while improving the reliability of the temperature and pressure combination sensor, and prolongs the service life of the terminal equipment.

Riveting process makes the temperature and pressure combination sensor and thermistor have a more stable structure, and on this basis to further improve the temperature measurement accuracy of the sensor, the selection of NTC thermistor is also very important. The VT series automotive NTC thermistor produced by EXSENSE Electronics Technology Co., Ltd. has high measurement accuracy, which can reflect temperature changes with the temperature and pressure combination sensor accurately. Moreover, it has great stability and is not affected by ambient temperature easily, which reduces the measurement error of the temperature and pressure combination sensor effectively. Automotive NTC thermistor also has the characteristic of fast response, its sensitive response to temperature change can assist the temperature and pressure combination sensor for better temperature monitoring.