Investigation of Features of Functioning of the Pyroelectric Sensors in Electronic Security Devices

Abstract

The article reviews and studies the operation of pyroelectric sensors in electronic security devices. The main focus is on pyrodetectors that detect infrared radiation from the human body. To eliminate background thermal radiation, the pyroreceiver must consist of two crystals. In addition, pyroreceivers must have internal correction circuits that attenuate the high-frequency components of the signals. Establishing the main parameters of thermal radiation, which is perceived by the pyroreceiver.