探测器评论热电探测器和其它热探测器有许多共同特性。通常它在宽的波长范围内能有均匀的响应,仅受传感器吸收辐射能力的限制。将适当的吸收黑层涂在探测器上,涂层就把热传到传感器的基体,在许多情况下这样做可扩展这个波长范围。热探测器也显示出优良的重复性和表面均匀性。然而,与其它热探测器不同,热电效应取决于探测器温度的变化速率,而不是探测器本身的温度值,这就允许热电体以比热电 Detector comments There are many common features of pyroelectric detectors and other heat detectors. Usually it has a uniform response over a wide range of wavelengths, limited only by the sensor’s ability to absorb radiation. By coating the detector with a suitable absorbing black layer, the coating transfers heat to the sensor’s substrate, which in many cases extends this wavelength range. Heat detectors also show excellent repeatability and surface uniformity. However, unlike other heat detectors, the thermoelectric effect depends on the rate at which the temperature of the detector changes rather than on the temperature of the detector itself, which allows the pyroelectric to dissipate heat