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NTC thermistor is an abbreviation of Negative Temperature Coefficient thermistor. It is a kind of static semiconductor temperature sensitive device, which is made of high stability metal oxide ceramic material, sintered in certain shapes, and composed of many resistor identical units connected in series. It is a kind of thermistor with negative temperature coefficient, so it is called NTC thermistor.

NTC thermistor has a relatively wide range of application. It is widely used in temperature measurement, temperature control, temperature compensation, thermal protection and other fields. For example, it can be used in new energy vehicles, power battery charging and discharging temperature monitoring, electric heating elements, heating troughs, air conditioners, lighting, motor protection, audio and many other appliances.

The working principle of NTC thermistor is to calculate the corresponding temperature value through the temperature coefficient of the material, and then convert it into electrical signal for output. It is mainly composed of negative temperature coefficient material, two electrodes and a wiring path. The resistance of the thermistor decreases with the increase of temperature, so when the temperature changes, its resistance will also change. Through the resistance value recorded by the detecting circuit, the temperature value of the measured medium can be accurately calculated.

In order to improve the accuracy and stability of temperature measurement and temperature control, NTC thermistors are often used as temperature sensors in some systems. In the temperature detection circuit, NTC thermistors are all connected in series, exposing the surface to the environment under test. The resistance value of the thermistor changes with the temperature, and the control accuracy of the system will also be improved due to the changes in temperature.

NTC thermistors are widely used in different occasions depending on their detection accuracy and accuracy of temperature conversion. In the light source temperature measurement project, NTC thermistors can be used as the temperature detector to measure the temperature of the light source. In the temperature measurement of container temperature in electronic manufacturing industry, NTC thermistors are also used. In addition, they can also be used in air conditioner temperature control, refrigerator temperature control, temperature measurement in laboratory and other fields.

NTC thermistors are relatively simple to use and maintain, and their accuracy is higher than that of other traditional thermistors. In addition, their resistance value is smaller and their temperature coefficient is more obvious, so that the same size thermistor can have higher control accuracy. The price is also cheaper than other temperature sensing elements, and it can be a good choice if the budget is limited. Therefore, they are widely used in various temperature detection projects.

In summary, NTC thermistors have a wide range of applications in many industries. In terms of working principle, with the help of negative temperature coefficient, the thermistor\'s resistance changes significantly with the change of environment temperature. Therefore, it can be used as temperature detector to detect temperature in a variety of projects. In terms of use, it is relatively easy to use, has high control accuracy, and has a relatively low price, which makes it has become one of the choices for many projects.

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