【摘要】 简要叙述了一维光电位置敏感器 (PSD)的工作原理 ,以及采用光学三角法测量构成的尺寸测量传感器 ,重点介绍光电位置敏感器、半导体激光器实现铁路钢轨磨耗自动检测的方法。更多还原

【Abstract】 The operating principle of one-dimension photoelectric position sensitive detector and the size measuring sensor formed by means of optical tria ngulation are briefly described in the paper.An automatic detection method for r ail wearing carried out by position sensitive detector and semiconductor laser i s emphatically introduced.更多还原