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Talking about the Temperature Sensor for Measuring the Temperature on the Surface of the Tube

Number of Views:28192021-09-27 11:40:41

With the development of electronic technology, all kinds of electronics have become more multifunctional and intelligent. The application of thermal chips in various occasions that need to detect, control, and compensate for temperature has gradually increased. At the same time, more and more temperature sensor structures have been proposed. High demands. In order to achieve high sensitivity and rapid detection, the temperature sensor structure design needs to meet the structural requirements of the tested object.
However, the existing tube body temperature sensor generally contacts the arc surface of the tube body by the convex surface of the shrapnel, resulting in a relatively small contact area between the two, and the heat transfer makes the heat very slow, resulting in a relatively slow temperature sensing speed of the temperature sensor. It takes a long time for the temperature to transfer from the tube body to the thermal chip inside the temperature sensor. The thermal time constant is generally 10 to 20 seconds. This reaction speed cannot meet the requirements for high sensitivity of temperature detection, and measurement may occur. Temperature inaccuracies.
In addition, the shell structure of the existing pipe temperature sensor can only be adapted to the temperature measurement of single-size pipes, and cannot be used for various sizes of pipes. Its versatility is poor, and the temperature sensor needs to be customized for specific pipes, and its installation is complicated. , It is not easy to operate.

Therefore, the temperature sensor for temperature measurement on the surface of the tube uses conventional structural clamps and shrapnel as the shell, and the NTC thermistor is built in the cavity between the clamp and the shrapnel. By setting an adjustable clamp, the temperature sensor for temperature measurement on the surface of the tube can be Clamped in a variety of different pipe diameters and sizes outside of the tube, the operation is convenient and fast, and the versatility is strong; moreover, when the shrapnel is pressed against the tube body under test, the shrapnel and the outer wall of the tube body under test are closely attached to each other. It has a large contact area to achieve full contact, so the thermistor in contact with the shrapnel can quickly receive the temperature transmitted from the fluid in the tube under test, and its response speed is very fast, which can achieve high-sensitivity detection. It has the advantages of convenient use, strong versatility, fast response speed, sensitive detection and high mechanical strength.

Talking about multi-point integrated test temperature sensor Automobile air conditioner evaporator and NTC thermistor