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Proceedings Paper

Calibration of laser vibrometers at frequencies up to 100 kHz and higher
Author(s): Guillermo Silva Pineda; Hans-Jürgen von Martens; Sergio Rojas; Arturo Ruiz; Lorenzo Muñiz
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Paper Abstract

Manufacturers and users of laser vibrometers exploit the wide frequency and intensity ranges of laser techniques, ranging over many decades (e.g., from 0.1 Hz to 100 MHz). Traceability to primary measurement standards is demanded over the specified measurement ranges of any measurement instrumentation. As the primary documentary standard ISO 16063-11 for the calibration of vibration transducers is restricted to 10 kHz, a new international standard for the calibration of laser vibrometers, ISO 16063-41, is under development. The current stage of the 2nd Committee Draft (CD) of the ISO standard specifies calibration methods for frequencies from 0.4 Hz to 50 kHz which does not meet the demand for providing traceability at higher frequencies. New investigations will be presented which demonstrate the applicability of the laser interferometer methods specified in ISO 16063-11 and in the 2nd CD also at higher frequencies of 100 kHz and beyond. The three standard methods were simultaneously used for vibration displacement and acceleration measurements up to 100 kHz, and a fourth high-accuracy method has been developed and used. Their results in displacement and acceleration measurements deviated by less than 1 % from each other at vibration displacement amplitudes in the order of 100 nm. In addition to the three interferometer methods specified in ISO 16063-11 and 16063-15, and in the 2nd Committee Draft of 16063-41 as well, measurement results will be presented. Examples of laser vibrometer calibrations will bedemonstrated. Further investigations are aimed

Paper Details

Date Published: 17 June 2008
PDF: 10 pages
Proc. SPIE 7098, Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 70981K (17 June 2008); doi: 10.1117/12.803338
Show Author Affiliations
Guillermo Silva Pineda, Ctr. Nacional de Metrología (Mexico)
Hans-Jürgen von Martens, Physikalisch-Technische Bundesanstalt (Germany)
Sergio Rojas, Ctr. Nacional de Metrología (Mexico)
Arturo Ruiz, Ctr. Nacional de Metrología (Mexico)
Lorenzo Muñiz, Ctr. Nacional de Metrología (Mexico)

Published in SPIE Proceedings Vol. 7098:
Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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