基于小孔光学系统与面阵CCD 的激光位移传感器系统设计

孙浩;薛丹丹;韩焱

应用光学 ›› 2012, Vol. 33 ›› Issue (6) : 1152-1155.

应用光学 ›› 2012, Vol. 33 ›› Issue (6) : 1152-1155.

基于小孔光学系统与面阵CCD 的激光位移传感器系统设计

  • 孙浩,薛丹丹,韩焱
作者信息 +

Laser displacement sensor system based on pinholeoptical system and array CCD

  • SUN Hao,XUE Dan-dan,HAN Yan
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文章历史 +

摘要

为了降低激光位移传感器的生产成本,提出一套新型激光位移传感器系统的设计方法。该设计基于三角测距原理,使用CCD 单板机作为光电探测器,换用小孔光学系统替代透镜,并针对小孔光学系统的特点对传感器系统重要参数的确定方法进行了研究,编写图像处理算法提取目标图像中的位移信息,从而达到非接触式位移测量目的。搭建了一套该新型激光位移传感器系统进行位移测量实验,结果表明此系统可以达到量程为50 mm、精度为1 mm 的测量需求。

Abstract

In order to reduce the production cost of laser displacement sensor, we put forward a design method of a new type of laser displacement sensor system. Based on the triangle measurement principle, the design uses the CCD single board computer as the photoelectric detector, utilizes the pinhole optical system to replace lens. We discussed the method to determine the important parameters of the senor system according to the characteristics of the pinhole optical system, and wrote the image processing algorithm for extracting displacement information of the target image, so as to achieve non-contact displacement measurement. Finally, we set up a set of this new type of experimental system of laser displacement sensor to carry on displacement measurement experiment, and the results show that this system can meet the measurement requirements of 50 mm range and 1 m precision.

关键词

CCD / 图像处理 / 激光三角测距 / 小孔成像

Key words

pinhole imaging / CCD / laser triangulation measurement / image processing

引用本文

导出引用
孙浩, 薛丹丹, 韩焱. 基于小孔光学系统与面阵CCD 的激光位移传感器系统设计. 应用光学. 2012, 33(6): 1152-1155
SUN Hao, XUE Dan-dan, HAN Yan. Laser displacement sensor system based on pinholeoptical system and array CCD. Journal of Applied Optics. 2012, 33(6): 1152-1155

参考文献

[1]SIROHI R S. Optical methods of measurement[M]. New  York: CRC Press,1999.
[2]李演楷.激光位移传感器输出特性分析及应用[D]. 长春:吉林大学,2011.
LI Yan-kai. Output characteristics of laser displacement sensor and its application[D]. Changchun: Jilin University,2011. (in Chinese)
[3]朱万彬.激光位移传感器测量工件曲率方法研究[J].光机电信息,2010,27(12):152-156.
ZHU  Wan-bin. Research on  measurement of workpi

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