Problems and solution methods for on-line measuring straightness

Jian Cheng Liang; Shengyi Li; Shuzi Yang

doi:10.1117/12.156358

22 September 1993 Problems and solution methods for on-line measuring straightness

Jian Cheng Liang, Shengyi Li, Shuzi Yang

Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993) https://doi.org/10.1117/12.156358
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China

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).

Citation Download Citation

Jian Cheng Liang, Shengyi Li, and Shuzi Yang "Problems and solution methods for on-line measuring straightness", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); https://doi.org/10.1117/12.156358

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