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30 March 2009Seismic waves velocity measurement with mechanical monolithic sensors
Laser interferometry is one of the most sensitive methods for small displacement measurement for scientific and
industrial applications. Interferometric techniques have been already successfully applied also to the design and
implementation of very sensitive sensors for geophysical applications, like monolithic accelerometers. In this paper
we describe the architecture and the expected theoretical performances of a laser interferometric velocimeter for
seismic waves measurement. We analyze and discuss the experimental performances of the interferometric system,
comparing the experimental results with the theoretical predictions and with the performances of a state-of the
art commercial accelerometer. The results obtained are very encouraging, such as the sensitivity and stability of
the interferometric system, that have been improved.
F. Acernese,R. Romano, andF. Barone
"Seismic waves velocity measurement with mechanical monolithic sensors", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 729244 (30 March 2009); https://doi.org/10.1117/12.814121
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F. Acernese, R. Romano, F. Barone, "Seismic waves velocity measurement with mechanical monolithic sensors," Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 729244 (30 March 2009); https://doi.org/10.1117/12.814121