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Proceedings Paper

A mechanical filter for FBG accelerometers
Author(s): Marco Bocciolone; Giuseppe Bucca; Andrea Collina; Lorenzo Comolli
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Paper Abstract

Many applications are characterized by very severe environment from the sensors point of view. An example is the railway field, where often the measurement setup is subjected to high voltage and electromagnetic emission. In these work conditions, optical sensors are more suitable than electrical ones due to their characteristics. In this paper, the acceleration measurements are taken into account. Nowadays many optical accelerometers are present on the market. In particular, in this work FBG accelerometers are considered. This kind of sensors is characterized by an undamped resonance that can produce the break of the sensor. One possibility to avoid this problem is to add a damping effect in order to reduce the resonance amplification. In the following section, the method to reproduce a mechanical filter able to increase the damping coefficient of the sensor is presented. Experimental results in laboratory will be discussed, showing the effectiveness of the solution.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91579J (2 June 2014); doi: 10.1117/12.2059537
Show Author Affiliations
Marco Bocciolone, Politecnico di Milano (Italy)
Giuseppe Bucca, Politecnico di Milano (Italy)
Andrea Collina, Politecnico di Milano (Italy)
Lorenzo Comolli, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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