采用PSD的激光平台测量仪的设计

Design of a laser-measurer of platform based on position sensitive detector

针对传统的测量小角度、小位移的工具所存在的体积大、功耗大、成本高、操作复杂、测量精度难以保证等缺陷,设计了一种采用PSD作为主测量器件,ADS7825作为A/D转换器件,LPC2214作为核心控制器件的激光平台测量系统。经过严格的测试表明,该系统能够达到较高的测量精度,大幅度降低了成本,体积、功耗都比较小,同时操作简单。

Traditional instruments for small-angle, small-displacement measurment always have some disadvantages of large volume and power consumption, high cost, complex operation and uncontrollable metrical precision. To overcome the disadvantages, we designed a laser-measurer of platform. In this system, a Position Sensitive Detector （PSD） was used as the main metrical parts, ADS7825 was used as A/D converter, LPC2214 was used as laser platform measurement system for the kernel controller. Rigorous tests showed that the system can gain a high measurement precision with reduced cost, volume and power consumption, and can be operated easily.