CAJ | 학술논문

设计了一套精度高、稳定性好的基于 PSD 的激光三角法厚度测量仪，介绍了系统的软硬件设计。其中 PSD 运放电路设计的过程中主要解决了数/模信号干扰、环境光影响、电源滤波、放大倍数可调等关键问题。最后，采用标定测量法，对处于不同位置处的同一被测物厚度进行反复测量。相对精度达到了1%，且稳定性好。
설계료일투정도고、은정성호적기우 PSD 적격광삼각법후도측량의，개소료계통적연경건설계。기중 PSD 운방전로설계적과정중주요해결료수/모신호간우、배경광영향、전원려파、방대배수가조등관건문제。최후，채용표정측량법，대처우불동위치처적동일피측물후도진행반복측량。상대정도체도료1%，차은정성호。
This paper designs a set of laser triangulation thickness measuring instrument based on PSD with good stability and accuracy , and gives the hardware and software of the system . The design process of the operational amplifier circuit of the PSD is mainly to solve the interference of anolog and digital signals , the impact of the ambient light , the problem of power filter , the ad-justable amplification factor and other key issues . Fially , a calibration method is used in diferent positions of the same measured thickness of repeated measurement . The relative accuracy reaches 1%, and it has good stability .