A New Capacitive Sensing System for Roundness Measurement

Yu Zhen Ma; Xin Hua Wang; Hong Min Li; Xiao Dong; Yan Hui Kang

doi:10.4028/www.scientific.net/AMR.662.754

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662A New Capacitive Sensing System for Roundness...

A New Capacitive Sensing System for Roundness Measurement

Abstract:

A capacitive sensing system for measuring spindle roundness was proposed in this paper, it was different with the past method using inductive sensors and laser displacement sensors. Three capacitive displacement probes were installed circularly on the measured shaft, because of capacitive sensor with average effect in two electrode plates, it is able to overcome the affect of microscopic factors. while the shaft was rotating with a certain speed, the probes measured the shaft’s profile in non-contact mode simultaneously, then through linear combination for three output signals, the spindle error of the rotating shaft was eliminated, and the roundness error was effectively separated from the measurement results. The experiment results have verified the effectiveness of roundness error measuring system based on mutiple capacitive probes, this capacitive sensing system can be used for rotating shaft roundness measurement.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

754-757

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.754

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Online since:

February 2013

Authors:

Yu Zhen Ma, Xin Hua Wang, Hong Min Li, Xiao Dong, Yan Hui Kang

Keywords:

Average Effect, Capacitive Sensor, Roundness Error, Separation, Spindle Error

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