Preliminary implementation of primary calibration system for laser vibrometer

Akihiro Oota; Takashi Usuda; Tamio Ishigami; Hideaki Nozato; Hisayuki Aoyama; Sojun Sato

doi:10.1117/12.693097

21 June 2006 Preliminary implementation of primary calibration system for laser vibrometer

Akihiro Oota, Takashi Usuda, Tamio Ishigami, Hideaki Nozato, Hisayuki Aoyama, Sojun Sato

Proceedings Volume 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; 634503 (2006) https://doi.org/10.1117/12.693097
Event: Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 2006, Ancona, Italy

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 %.

Citation Download Citation

Akihiro Oota, Takashi Usuda, Tamio Ishigami, Hideaki Nozato, Hisayuki Aoyama, and Sojun Sato "Preliminary implementation of primary calibration system for laser vibrometer", Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 634503 (21 June 2006); https://doi.org/10.1117/12.693097

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