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近年来,随着科学技术的飞速发展和生产过程自动化程度的提高,光传感器己在科学测量、工业控制、通信、信息处理和家用电器等方面获得广泛的使用并不断扩大应用领域.最简单的光传感器即单个光敏管,它是光信号采集器,并把光信息转变为电信息.常用的光敏管品种有光敏二极管、光敏三极管、光敏达林顿、光敏场效应管、光激可控硅、光敏斯密特电路、色敏晶体管和CCD摄象器等.这些器件在光传感器装置中作为“感官”部分具有以下显著优点:
In recent years, with the rapid development of science and technology and the improvement of the automation of the production process, optical sensors have been widely used in scientific measurement, industrial control, communication, information processing and household appliances, etc., and their applications are expanding. Light sensor is a single light-sensitive tube, which is the optical signal collector, and the optical information into electrical information commonly used photosensitive tube varieties photosensitive diode, phototransistor, photosensitive Darlington, photosensitive field effect transistor, phototriac , Photosensitive Schmidt circuits, color-sensitive transistors and CCD cameras, etc. These devices have the following significant advantages as “sensory” parts in light sensor devices: