一种测量C型弹簧管弹性特性的新方法  

A Novel Method for Measuring the Elastic Characteristics of C-type Bourdon Tube

作　　者：赵恩国[1] 焦明星[1] 侯一民[1] 高宗海[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048

出　　处：《机械科学与技术》2003年第5期824-825,838,共3页Mechanical Science and Technology for Aerospace Engineering

基　　金：陕西省自然科学研究计划项目 (2 0 0 1x2 1);陕西省教育厅自然科学研究计划项目 (0 2 JK15 3 )资助项目

摘　　要：提出了一种基于 CCD成像和计算机图像处理技术的 C型弹簧管弹性特性测量新方法。在弹簧管上粘贴一个两条直边夹角为 90°的小薄片 ,该标志物由 CCD摄像头成像 ,其位置信息采用计算机图像处理技术获得 ,从而实现 C型弹簧管弹性特性的非接触测量 ,并且灵敏度的实验曲线与理论曲线基本吻合。简要介绍了该方法的测量原理及实验方法 ,给出了弹簧管弹性特性的实验结果及其相应的评价方法 。A novel method for measuring the elastic characteristics of a C-type Bourdon tube, based on CCD imaging and image-processing technologies, is presented and demonstrated. Pasted on the Bourdon tube is a small slice, whose two straight edges are at 90 degrees, such a mark can be image-formed by use of a CCD videotape head, and its position information can be obtained using the computer-based image processing, thus the non-contact measurement of the elastic characteristics can be realized, the curve of the experimental sensitivity basically coincides with that of the theoretical sensitivity. The principle of measurement and the experimental method are simply introduced, the experimental results of the elastic characteristics and the corresponding evaluations are given, and the error sources of the measurement method are also pointed out.

关 键 词：CCD成像 图像处理 C型弹簧管 弹性特性 

分 类 号：TH135[机械工程—机械制造及自动化]