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Proceedings Paper

Problems and solution methods for on-line measuring straightness
Author(s): Jian Cheng Liang; Shengyi Li; Shuzi Yang
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Paper Abstract

There are several methods for measuring straightness. It mainly includes frequency-domain method(FDM) and time-domain method(TDM), But whatever the method is, there are some problems on it. This paper points out these problems in detail. First, the problem of misusing shifting theorem at the area of boundary the in FDM is described. Second, the problems of TDM is presented. It include that the slope component of straightness measurement can' t be obtained, sample interval is too long, number of sample is too little and it is not benefical for measuring short and precision workpiece. At last, two kinds of new methods for solving the problems are introduced. One is optimum error separate technique( OEST) method. The other is BP network-based error separate teehnique(BPNBEST).

Paper Details

Date Published: 22 September 1993
PDF: 4 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156358
Show Author Affiliations
Jian Cheng Liang, Changsha Institute of Technology (China)
Shengyi Li, Changsha Institute of Technology (China)
Shuzi Yang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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