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The testing part of the temperature sensor is in good contact with the object being measured, and is also called a thermometer. The thermometer achieves thermal circulation through heat transfer or heat convection, so that the measuring range of the thermometer can directly indicate the temperature of the object being measured.

Generally the measurement accuracy is higher. Within a certain temperature measurement range, the thermometer can also accurately measure the temperature distribution inside an object. However, for fitness athletes, personal goals or goals with low thermal conductivity, it will cause large data errors. Common thermometers include wear-resistant steel tube thermometers, laminated glass liquid thermometers, working pressure thermometers, resistor thermometers, temperature sensors and temperature difference thermocouples.

Thermistors are composed of two metal wires made of different materials, which are welded together at the ends. By measuring the temperature of the unheated position, the temperature of the heating point can be accurately known. Because it requires two conductors of different materials, it is called a thermistor. Thermistors made of different materials are used in different temperature ranges, and their sensitivity is also different. The sensitivity of a thermistor refers to the change in output potential difference when the temperature of the heating point changes by 1°C. For most metal composite material-supported thermistors, this value is approximately between 5 and 40 microvolts/°C.

Because the sensitivity of thermistor temperature sensors is independent of the size of the material, very fine materials can be used to make temperature sensors. Also, because the metal composite materials used to make thermistors have very good plasticity, these tiny temperature measurement components have very high response times and can accurately measure rapidly changing processes. Ainuo Electronic Technology produces thermal protection, temperature control switches, PTC heaters, motor protectors, temperature sensors, etc. Welcome to buy.