An interferometric accelerometer calibration system with flexible acquisition rate and recursive moving average filtering

Gustavo P. Ripper; Guilherme A. Garcia; Ronaldo S. Dias

doi:10.1117/12.693103

21 June 2006 An interferometric accelerometer calibration system with flexible acquisition rate and recursive moving average filtering

Gustavo P. Ripper, Guilherme A. Garcia, Ronaldo S. Dias

Author Affiliations +

Proceedings Volume 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; 634505 (2006) https://doi.org/10.1117/12.693103
Event: Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 2006, Ancona, Italy

Abstract

This paper presents an automated accelerometer calibration system based on an homodyne quadrature interferometer. The vibration exciter and the interferometer are mounted on separate seismic blocks. To minimize the influence of low frequency noise due to the relative movement between the blocks, a high-pass recursive moving average filtering algorithm is implemented. The vibration and the measuring system are fully synchronized. A flexible setting of the acquisition rate is used to improve the computational efficiency and allow the calibration at any desired frequency within the frequency range from 10 Hz to 10 kHz. The theory of the method is briefly described. The experimental set-up is presented and some results are given.

Citation Download Citation

Gustavo P. Ripper, Guilherme A. Garcia, and Ronaldo S. Dias "An interferometric accelerometer calibration system with flexible acquisition rate and recursive moving average filtering", Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 634505 (21 June 2006); https://doi.org/10.1117/12.693103

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