70年代起电子计算机在各个领域获得了广泛的普及应用,从而引起了其外围系统及电五官——视觉、听觉、嗅觉、味觉和触觉传感器的飞跃发展,其中光电传感器在各类传感中占有重要位置,它能代替人眼的功能,作为一种传感器用途极为广泛。 Since the 1970s, electronic computers have gained widespread popularity in various fields, which has led to the rapid development of peripheral systems and electrical components - visual, auditory, olfactory, taste and touch sensors. Photoelectric sensors occupy various types of sensing Important position, it can replace the human eye function, as a sensor is extremely versatile.