Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2004.11a
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- Pages.685-688
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- 2004
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- 1598-2548(pISSN)
Study on the Precision Method of Measuring angular displacement for the Angular Vibration Calibration System
회전 진동 교정 장치 구현을 위한 고정밀 측정기법에 대한 연구
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Cheung, Wan-Sup
(Acoustics and Vibration Lab, KRISS) ;
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Lee, Yong-Bong
(Acoustics and Vibration Lab, KRISS) ;
- Lee, Doo-Hee (Acoustics and Vibration Lab, KRISS)
- Published : 2004.11.01
Abstract
This paper addresses the study on developing the angular vibration calibration system which requires the highly accurate measurement technique of the amplitude and period of an oscillating angular motion. Two developed models for the low and high frequency ranges are introduced and their main features are also compared. In addition to the angular vibration exciters, a new measurement method, referred to the 'equi-angle sampling method', is proposed and its theoretical backgrounds are introduced. The proposed method is shown to provide much less measurement uncertainty, compared the fringe counting method. Experimental results demonstrate what amount of angular vibration amplitude measurement uncertainty is improved by suing the proposed equi-angle sampling method.
Keywords