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The core component of the waterproof heating cap factory in China is a thermistor made of oxidized metal ceramic material. When the temperature changes, the resistance value of the thermistor inside the temperature sensor also changes accordingly.

The resistance value of NTC thermistor is negatively correlated with temperature. That is, when the temperature rises, the resistance value decreases; when the temperature drops, the resistance value increases. This is determined by the material properties of the NTC thermistor material. The specific working principle is as follows: When the waterproof heating cap factory in China is connected to the power supply, the thermistor inside the sensor forms a resistance circuit. At different temperatures, the resistance value of this resistance circuit changes, thereby causing changes in the voltage or current in the circuit.

Combined with the obtained characteristic curve of NTC resistance and temperature, by measuring the voltage or current changes in the sensor circuit, the current temperature of the sensor can be derived.

It is worth noting that the waterproof heating cap factory in China usually needs to be used in combination with a circuit or system to properly amplify, process and convert the signal output by the sensor.

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