电子器件2017，Vol.40Issue(4)：1005-1008,4.DOI:10.3969/j.issn.1005-9490.2017.04.042
基于PSD的腔体相对位移测量方法设计
A Relative Movement Measurement MethodDesign of Cavity Based on PSD
焦新泉 1杨文豪 1储成群 1李治华 1李锐锐1
作者信息
- 1. 中北大学仪器科学与动态测试教育部重点实验室,电子测试技术重点实验室,太原 030051
- 折叠
摘要
Abstract
The measurement of relative movement makes it difficult to settle the detector on objective structure.For the special cavity structure that the detector could only settle on its broadside,a correlative measurement circuit was designed based on PSD(Position Sensitive Detector).The I-V conversion,reverse amplification and other signal conditioning methods are processed on a single AD824.The opposite-type detection method reduces the physical size and simplifies the structural design..The source and sensor are installed out of the cavity,so kinematic interference is avoided.A simple light source design can get high measurement precision,and also make it feasibility.Movement measuring process was introduced in detail,and the calibration fixture is designed for the system.Measurement errors were minimized through data post-processing method which could improve the accuracy of measurement.Experiments show that the system has high repeatability and fast response within 30 mm ranges,which can be applied to relative movement measurement system in similar structures.关键词
非接触测量相/相对位移/PSD/面光源Key words
non-contact measurement/relative movement/PSD/area light source分类
信息技术与安全科学引用本文复制引用
焦新泉,杨文豪,储成群,李治华,李锐锐..基于PSD的腔体相对位移测量方法设计[J].电子器件,2017,40(4):1005-1008,4.
