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Proceedings Paper

Roundness measurement using angle probes
Author(s): Wei Gao; Eijiro Sato; Satoshi Kiyono
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Paper Abstract

To measure roundness errors of cylindrical workpieces and spindle errors of machine tools in on-machine conditions, it is important to separate the roundness error and spindle error from each other. Basically there are two kinds of error separation methods. One is known as the multi-orientation method, and the other is the multi-probe method. Multi-orientations including the step method and the reversal method can separate the spindle error and the roundness error effectively, if the spindle error has good repeatability. Compared with multi-orientation methods, multi-probe methods are more suitable for on-machine measurements, because the repeatability of the spindle error is not necessary. In this paper, we present a new error-separation method using multiple angle probes. In the angular three-probe method, three angle probes are fixed around the workpiece to detect roundness profile and two-dimensional spindle error components simultaneously. The effect of the spindle is canceled in the differential output of the probes and the correct roundness profile can be evaluated from the differential data. In this paper, the principle of the angular three-probe method is described. Experimental results of comparing with the conventional displacement three-probe method are also presented.

Paper Details

Date Published: 10 October 2000
PDF: 4 pages
Proc. SPIE 4222, Process Control and Inspection for Industry, (10 October 2000); doi: 10.1117/12.403856
Show Author Affiliations
Wei Gao, Tohoku Univ. (Japan)
Eijiro Sato, Tohoku Univ. (Japan)
Satoshi Kiyono, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4222:
Process Control and Inspection for Industry
Shulian Zhang; Wei Gao, Editor(s)

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