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Proceedings Paper

Fibre Bragg grating vibration transducer based on novel mechanical sensing element for monitoring applications
Author(s): Søren Andresen; Finn Kryger Nielsen; Torben Rask Licht; Martin Nedergaard Rasmussen; Morten Kirkelund
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Paper Abstract

We present a fibre optical accelerometer based on a balanced double cantilever design that offers improved performance in terms of sensitivity, frequency range and reliability in general. Within a three year project funded by the Danish National Advanced Technology Foundation, we have developed a rugged prototype with a wavelength sensitivity of 20 pm/g within ±1dB over a frequency range from DC to 1 kHz. These units are currently undergoing field tests in monitoring applications, e.g. for wind turbines, energy services, aerospace etc. In particular, we consider sensitive and reliable accelerometers essential for future condition monitoring and structural health monitoring applications.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77537M (18 May 2011); doi: 10.1117/12.884971
Show Author Affiliations
Søren Andresen, Brüel & Kjær Sound & Vibration Measurement A/S (Denmark)
Finn Kryger Nielsen, Brüel & Kjær Sound & Vibration Measurement A/S (Denmark)
Torben Rask Licht, Brüel & Kjær Sound & Vibration Measurement A/S (Denmark)
Martin Nedergaard Rasmussen, Brüel & Kjær Sound & Vibration Measurement A/S (Denmark)
Morten Kirkelund, Brüel & Kjær Sound & Vibration Measurement A/S (Denmark)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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