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Proceedings Paper

Primary vibration calibration by laser interferometry: requirements, problems, and first experience with a new calibration system
Author(s): Uwe Buehn; Holger Nicklich
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Paper Abstract

Primary vibration calibration according to ISO 16063 can be carried out in several ways using different methods. Because of the wide frequency range and the possibility to calibrate sensitivity magnitude and phase, method 3 of part 21 of the international standard is mostly used in practice. Several requirements for components, system integration and control ofthe system must be met to achieve the goals ofthe standard and obtain low uncertainties in measurement and calibration. Illustrated by the CS18P primary calibration system of SPEKTRA, the main requirements, special problems and well-investigated solutions will be discussed. It will be shown that the all-digital vibrometer of Polytec plays an important part but, in addition to that, system integration and optimization of all components must be implemented with great care by calibration specialists. Our paper comes to the conclusion that, for primary calibration, high quality components alone will not be enough. It is necessary to integrate these components in an optimized system that takes into consideration all requirements and influences and so allows to reduce the uncertainties ofthe calibration procedure to the lowest possible values.

Paper Details

Date Published: 22 May 2002
PDF: 12 pages
Proc. SPIE 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2002); doi: 10.1117/12.468167
Show Author Affiliations
Uwe Buehn, SPEKTRA Schwingungstechnik und Akustik GmbH Dresden (Germany)
Holger Nicklich, SPEKTRA Schwingungstechnik und Akustik GmbH Dresden (Germany)


Published in SPIE Proceedings Vol. 4827:
Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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