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Proceedings Paper

Experimental study on curve-baffle characteristics of pneu-pin sensor with differential pressure
Author(s): Fengwei Wang; Hui Zhang; Shanxi Deng; Hanping Zeng
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Paper Abstract

This paper presents the design and working principle of a pneu-pin sensor based on a gas path with differential pressure, and the study on its curve-baffle characteristics. The measurement range of the sensor is about 32 &mgr;m, with a resolution of 0.03 &mgr;m and less than an uncertainty of 0.3 &mgr;m. It is found through research on the curve-baffle characteristics with different curvature radius of steel balls that the axis of the pneumatic probe does not need to go through the geometric centre of work-piece, and so, the high accuracy positioning of the work-piece is avoided. Therefore, the pneumatic measurement technology researched in this paper can be applied to high accuracy non-contact dimension of measurement of different curvature radius of work-pieces.

Paper Details

Date Published: 12 January 2009
PDF: 7 pages
Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 713348 (12 January 2009); doi: 10.1117/12.806494
Show Author Affiliations
Fengwei Wang, Hefei Univ. of Technology (China)
Hui Zhang, Hefei Univ. of Technology (China)
Shanxi Deng, Hefei Univ. of Technology (China)
Hanping Zeng, Anhui Changjiang Institute of Metrology (China)

Published in SPIE Proceedings Vol. 7133:
Fifth International Symposium on Instrumentation Science and Technology

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