【摘要】 介绍了一种用激光光线作为基准 ,用四象限光电池作为探测器的激光准直仪 ,该仪器结构简单、稳定性好且成本低廉 ,其分辨力为 0 .0 1m m,作用距离可达 4 0 m。更多还原

【Abstract】 This paper introduces a laser collimator whose benchmark is beam of laser and whose detector is four element photoelectric cell. The instrument has simple constitution, good stablility and low cost. Its resolving power is 0.01 millimeter and its effective working distance is 40 meters.更多还原