Infrared detector

An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors).

The thermal effects of the incident IR radiation can be followed through many temperature dependent phenomena. Bolometers and microbolometers are based on changes in resistance. Thermocouples and thermopiles use the thermoelectric effect. Golay cells follow thermal expansion. In IR spectrometers the pyroelectric detectors are the most widespread.

单词	Infrared detector
释义	Infrared detector 原声例句美国恐怖故事第一季 You're also gonna get this infrared motion detector. 还有这个，红外动作探测器。 Crash Course 天文篇 So an image using the shortest wavelength infrared detector is displayed as blue, the medium wavelength one green, and the longest one red. 因此，使用最短波长红外探测器的图像显示为蓝色，中波长显示为绿色，最长波长显示为红色。英语百科 Infrared detector An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors). The thermal effects of the incident IR radiation can be followed through many temperature dependent phenomena. Bolometers and microbolometers are based on changes in resistance. Thermocouples and thermopiles use the thermoelectric effect. Golay cells follow thermal expansion. In IR spectrometers the pyroelectric detectors are the most widespread.
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