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Shenzhen XinBoxing science and Technology Co., Ltd.
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The working principle of pyroelectric infrared sensor

Pyroelectric infrared sensor working principle: pyroelectric sensor, called human infrared sensor, for the life of anti-theft alarm, visitor notification, etc., the principle is to release the charge through the amplifier to the voltage output. Pyroelectric sensor, also called human infrared sensor, is widely used in the infrared field such as burglar alarm, visitor notification and non-contact switch. The piezoelectric ceramics can maintain polarization state after the electrode is called spontaneous polarization. The spontaneous polarization decreases with the increase of temperature, and the temperature drops to zero at Curie point. Therefore, when the material is subjected to infrared radiation and the temperature increases, the surface charge will decrease, which is equivalent to the release of part of the charge, so it is called pyroelectric. The released charge can be converted into a voltage output by an amplifier. This is the principle of pyroelectric sensors.
Shenzhen Xin Boxing science and Technology Co., Ltd. is a high-tech enterprise with infrared sensor, wireless transmitting and receiving, gas sensor, SCM and so on. Pyroelectric infrared sensor and pyroelectric infrared sensor applications, pyroelectric infrared sensor principle, pyroelectric infrared sensor manufacturers preferred Boxing Xin, welcome customers to visit our company to negotiate business, Tel: 0755-82550468
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