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Proceedings Paper

Investigation of a homodyne and a heterodyne laser interferometer for dynamic force measurement
Author(s): Li Zhang; Rolf Kumme
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Paper Abstract

Homodyne and heterodyne laser interferometers can be used for dynamic force calibration and for acceleration measurement with sinusoidal and with shock excitation. The characterisics of both types of interferometers in acceleration measurement are compared in this paper. The data acquisition system comprises a four channels ADC card and a digital multimeter to sample the interferometer and force transducer or acccelerometer signals synchronously. The nonlinearity effects of homodyne and heterodyne interferometers in acceleration measurement are analyzed. A transducer is calibrated using both interferometers and good accordance is demonstrated.

Paper Details

Date Published: 22 June 2004
PDF: 8 pages
Proc. SPIE 5503, Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 June 2004); doi: 10.1117/12.579622
Show Author Affiliations
Li Zhang, Changcheng Institute of Metrology and Measurement (China)
Rolf Kumme, Physikalisch-Technische Bundesanstalt (Germany)


Published in SPIE Proceedings Vol. 5503:
Sixth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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