Sphericity Non-contact Measurement and Form Error Analysis

• Main Authors: Hsiao ,Kuang Chieh, 蕭光傑
• Other Authors: Chang Ming
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/69922748333262519092

碩士 === 中原大學 === 機械工程研究所 === 83 === In this paper, the way is introducted to design analysis programming and computer automatic noncontact measurement system comprised of interferometer and rotation stage for sphericity measurement and form error analysis of a ball. A window software package has developed in chinese for sampling analysis for phase -shift interferogram. Using a interferometer with the software package, it is not only measuring high precision optical parts automatrically but also providing quantity analysis of vary int- erferometric measurement. The system design is similar to Fizeau interferometer and is considered its convenience and economic for proceeding a larger dimensional measurement. It is easy by mean of faster alignment to obtain interferomtric fringe and data analysis during measurment rotated from 0°to 360°later. First, every sphericitical range of rolling ball is caculated by the minimum zone method. Then algorithm development and error analysis for flatness, cicularity and sphericity is executed by defined and statisticed related variable status of repeat profile measurement in confidence intervals. The requirement of one exat solution and mininum error is satisfied by comparing with least square method. This result can be tranfered to industrial application for measuring high precision flatness and sphericity.