How does a Thermopile Sensor Work? - senba sales - Wattpad

How does a Thermopile Sensor Work?

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sensor thermopile

Thermopile is a kind of thermoluminescence infrared sensor, which is a device composed of thermocouple. It has been widely used as a temperature detection device in ear thermometer, radiation thermometer, electric oven, food temperature detection and other fields. So, how does a thermopile sensor work? Let's answer this question.

As long as any object is above absolute zero, it will radiate energy at a certain wavelength, but the radiation energy at low temperature is very weak. At room temperature, all objects in nature are the emission source of infrared radiation, but the wavelength of infrared radiation is different.

The principle of thermopile temperature sensor is based on Seebeck effect: a closed circuit composed of two conductive materials with different work function. When the temperature at the two contact points is different, the carriers inside the material move towards the lower temperature end due to the decrease of temperature gradient, and the accumulated accumulation will be formed at the end of low temperature, then a thermoelectric potential will be generated in the loop. This structure is called thermocouple, the temperature of the object to be measured can be detected when the voltage change is separated from each other.

At present, it has been widely used in the field of forehead temperature gun, ear temperature gun, intelligent home appliances, lamp switch, food temperature detection and so on.

We are a professional motion sensor companies, if you want more information about intelligent pir sensor, please feel free and contact us.

https://www.senbasensor.com/products/infrared-thermopile-sensor/All Rights Reserved

sensor thermopile

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How does a Thermopile Sensor Work?
Tue, Jul 27, 2021

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