Experimental study on curve-baffle characteristics of pneu-pin sensor with differential pressure

Fengwei Wang; Hui Zhang; Shanxi Deng; Hanping Zeng

doi:10.1117/12.806494

12 January 2009 Experimental study on curve-baffle characteristics of pneu-pin sensor with differential pressure

Fengwei Wang, Hui Zhang, Shanxi Deng, Hanping Zeng

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 713348 (2009) https://doi.org/10.1117/12.806494
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

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.

Citation Download Citation

Fengwei Wang, Hui Zhang, Shanxi Deng, and Hanping Zeng "Experimental study on curve-baffle characteristics of pneu-pin sensor with differential pressure", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 713348 (12 January 2009); https://doi.org/10.1117/12.806494

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