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SENSITIVITY CORRECTION SYSTEM FOR PHOTOCONDUCTING TYPE INFRARED DETECTOR
SENSITIVITY CORRECTION SYSTEM FOR PHOTOCONDUCTING TYPE INFRARED DETECTOR
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机译:光导型红外探测器的灵敏度校正系统
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摘要
PURPOSE:To achieve a higher detection accuracy of an infrared detector by using an AC component from an infrared detector as measuring signal corresponding to the quantity of infrared rays and a DC component as correction signal. CONSTITUTION:Infrared rays from an object to be photographed are reflected with a scan mirror 3 and condensed to a detector 1 with a condenser lens 2. The detector 1 with current biased has a terminal voltage thereof reflecting an element resistance R and an AC component of a voltage thereof is amplified with an amplifier 5 are a DC component thereof with an amplifier 6. A timing circuit 9 is a circuit which generates a system control signal to match the movement of a scan mirror 3. A reference light source 4 is adapted to regenerate DC with respect to an output of the amplifier 5 at a timing assumed by the detector 1 and an image signal is converted into digital with an A/D converter 8. On the other hand, an output of the amplifier 6 is digitalized with an A/D converter 10 and a microcomputer 11 determines a reference number of incident photons from the signal to be introduced into a formula for obtaining the subsequent object to be photographed.
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机译:目的:通过使用来自红外探测器的交流分量作为对应于红外线量的测量信号以及以直流分量作为校正信号,来实现更高的红外探测器探测精度。组成:来自被摄物体的红外线被扫描镜3反射并会聚到带有聚光镜2的检测器1。电流偏置的检测器1的端电压反映了元件电阻R和AC分量。其电压由放大器5放大,其直流分量由放大器6放大。定时电路9是产生系统控制信号以匹配扫描镜3的运动的电路。参考光源4适用于在检测器1所假定的定时,相对于放大器5的输出再生DC,并且通过A / D转换器8将图像信号转换为数字。另一方面,利用A / D转换器8将放大器6的输出数字化。 A / D转换器10和微计算机11从要引入的信号中确定入射光子的参考数量,该信号用于获得随后的待拍摄物体的公式中。
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