Infrared detectors need to be routine maintenance and security protection

Infrared detector in daily work, because work outdoors for a long time, thus inevitably affected by dust in the atmosphere, microorganisms, and snow, frost, mist, in the past, for a long time in the detector of the outside wall scale tend to accumulate a layer of dust samples, also will grow in a wet place a thick layer of moss moss, sometimes birds pull excrement to the infrared detector, These can block the transmission and reception of infrared rays, causing false alarms. Some users usually entrust the engineering company to maintain, usually in a month or so dipped in detergent to clean the shell of each detector, and then dry in addition to clean the infrared detector shell, every other month to do a firing experiment, test the alarm performance of the anti-theft system.

Small infrared detectors are a price-driven commodity market, while medium and large array detectors are a cost and performance driven market and provide room for differentiation for new products. But there are significant barriers between each infrared detector technology, such as thermoelectric/thermocouple/microbolometer. Because these technologies are based on different manufacturing processes, it is difficult to switch from one technology to another without a merger or acquisition. Infrared detector has entered the daily security of residents, which active infrared detector encountered leaves, rain, small animals, snow, dust, fog occlusion should not alarm, people or considerable volume of objects occlusion will alarm. Active infrared detector technology mainly uses one and one, which belongs to linear prevention. Now it has developed from the initial single beam to multiple beams, and it can also double send and double receive to minimize the false alarm rate, so as to enhance the stability and reliability of the product. Infrared detectors can be divided into thermal detectors and photon detectors according to the detection mechanism, majority carrier devices and minority carrier devices according to the type of carriers in their work, and cooling type and cooling type according to whether the detector needs cooling.