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光机扫描热像仪扫描体制的选择是系统设计的重要环节。它与很多因素有关,如探测器的探测度D、响应率、响应时间常数、元数和参数一致性,光机扫描器的扫描速度,体积和重量、信号处理电路的复杂性和可能性等。国外早期的热像仪都是多元探测器并联扫描体制,七十年代初,由于时间常数很小的碲镉汞探测器的发展,串联扫描得到了很快发展,近年来发展趋势是把两种扫描体制结合起来形成串并扫描体制。折衷得好,可以克服两种体制的缺点,发挥它们各自的优点,成为一种比较完善的扫描体制。
The choice of scanning system of optical scanning camera is an important part of system design. It depends on a number of factors such as the detector’s detection D, response rate, response time constant, element and parameter consistency, scan speed, volume and weight of the optical scanner, complexity and likelihood of the signal processing circuit, etc. . In the early 1970s, due to the development of the HgCdTe detector with a small time constant, tandem scanning has been developed rapidly. In recent years, the development trend is that two types of thermal imaging cameras Scanning system combined to form a string and scan system. The compromise is good, can overcome the shortcomings of the two systems, give full play to their respective advantages, to become a relatively complete scanning system.