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Proceedings Paper

Preliminary implementation of primary calibration system for laser vibrometer
Author(s): Akihiro Oota; Takashi Usuda; Tamio Ishigami; Hideaki Nozato; Hisayuki Aoyama; Sojun Sato
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Paper Abstract

In this paper, we outline a preliminary implementation of primary calibration for a laser vibrometer (LV) on the basis of newly proposed first ISO draft. The sine approximation method is applied to our calibration system. Under some different measurement conditions, primary calibration is preliminarily carried out for achieving reliable measurements. From these results, the effects of acceleration amplitude stability, mechanical distortion, position of measuring beam, and spot diameter of measuring beam have been discussed. Some conditions required for achieving the reliable calibration is indicated on the basis of the discussion. Additionally, the strict regulations of the distance between spots and such amount of mechanical distortion would be indispensable for guaranteeing a higher reliability of such calibration within an expanded uncertainty (k = 2) of less than 0.5 %.

Paper Details

Date Published: 21 June 2006
PDF: 8 pages
Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 634503 (21 June 2006); doi: 10.1117/12.693097
Show Author Affiliations
Akihiro Oota, National Institute of Advanced Industrial Science and Technology (Japan)
Takashi Usuda, National Institute of Advanced Industrial Science and Technology (Japan)
Tamio Ishigami, National Institute of Advanced Industrial Science and Technology (Japan)
Hideaki Nozato, National Institute of Advanced Industrial Science and Technology (Japan)
Hisayuki Aoyama, Univ. of Electro-Communications (Japan)
Sojun Sato, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 6345:
Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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