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提出了一种利用噪声等效温差NETD计算红外热像仪作用距离的方法。分析了的两个表达式及其实际使用意义,结合作用距离的普遍方程建立了用NETD表示的对点源探测的作用距离方程,提高了热像仪的使用效率。
A method to calculate the working distance of infrared thermal imager by using noise equivalent temperature difference NETD is proposed. The two expressions analyzed and their practical significance are discussed. Based on the universal equation of action distance, the range equation of action of point source detection with NETD is established, which improves the using efficiency of the camera.