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Proceedings Paper

Calibration of vibration pick-ups by laser interferometry
Author(s): Marek Dobosz; Takashi Ususda; Tomizo Kurosawa
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Paper Abstract

The ISO 53471/1-1995 proposition of the new international standard of vibration pick-up calibration is examined theoretically and experimentally. Regression analysis method is applied for data transforming and error evaluation in sine-approximation method (SAM) for the calibration of vibration pick-ups by laser interferometry. To make a more valuable comparison of this modified SAM with other techniques, i.e. fringe counting method (FCM) and minimum point method, the resolution of the measuring system is increased by using double optical path difference homodyne interferometer. Additionally the uncertainty of FCM is suppressed by implementing the procedure of fringe phase analysis in the turn points of the vibration cycle. Theoretical analysis and the exemplary experimental results for all applied methods are given. The expanded measurement uncertainties about 0.2% of acceleration measurement and about 0.5% of sensitivity measurement (with a 99% confidence level) have been obtained.

Paper Details

Date Published: 13 August 1999
PDF: 8 pages
Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); doi: 10.1117/12.357760
Show Author Affiliations
Marek Dobosz, Warsaw Univ. of Technology (Poland)
Takashi Ususda, National Research Lab. of Metrology (Japan)
Tomizo Kurosawa, National Research Lab. of Metrology (Japan)

Published in SPIE Proceedings Vol. 3744:
Interferometry '99: Techniques and Technologies
Malgorzata Kujawinska; Mitsuo Takeda, Editor(s)

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