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光测量广泛用于各个领域,例如光谱学、天文学、激光光谱分析以及光纤特性测量等.由于噪声的影响,弱光测量不同于强光的测量,因此必需采用特殊的方法来降低噪声,改善信噪比,以提高测量精度.本文将通过对噪声的分析及改善信噪比方法的介绍来讨论弱光测量中的问题. 一、光检测系统
Light measurement is widely used in various fields such as spectroscopy, astronomy, laser spectroscopy and measurement of optical fiber characteristics, etc. Low-light measurement differs from bright-light measurement due to the influence of noise, so special methods must be adopted to reduce noise, Noise ratio in order to improve the measurement accuracy.This paper will discuss the problems in low light measurement by analyzing the noise and improving the signal to noise ratio method.A light detection system