不透明圆柱体几何尺寸的在线实时检测系统

The Photoelectrical Detecting System for Metal Plate Classification

提出了在线实时检测不透明圆柱体（如电缆等）几何尺寸的新方法。用Ｈｅ－Ｎｅ激光器作为光源，ＣＣＤ作为光电接收装置，用双路分光法，对被测物的几何尺寸进行检测，并对平行光的宽度如何能覆盖全部ＣＣＤ光敏元等实际问题进行分析讨论。提出了分裂式结构和双路分光的光学系统，给出了计算公式。此方法测外经、厚度、宽度等几何量具有自扫描、高分辨率、高精度、非接触和稳定性好等优点。

A new method for detecting the edge flaw of metal slice or chain elements slice is introduced in the paper.The edge flaw is detected by using HeNe laser as light source and CCD as photoelectric receiver.The width and the maximal deviation of the reflecting light are calculated and descussed in detail,and the position binding of CCD is also discussed.The device volume is impact and its operating is convenient.The experiments show that it can finish the functions of detecting,automatic selecting metal slice or chain elements slice,and it has the advantage of high selecting rate. The assembling demands for the device,the raising of the selecting rate and the data processing measures adopted in lowering the false selecting rate are also discussed in the paper.