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Proceedings Paper

Optical fibre micromechanical pressure sensor with very low temperature cross sensitivity
Author(s): Seshadri Ramakrishnan; Heinrich A. Hoefler
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Paper Abstract

In the present paper an attempt has been made to immerse the micromechanical resonant structure in the gas medium and investigate the pressure and temperature sensitivities. By means of a closed loop between the exciting laser diode source,the mechanical resonator and the interrogating detector diode it is possible to design a self-oscillating system,which automatically provides the correct mechanical resonance frequency.This simple and economic data reduction system seems to operate quite efficiently.

Paper Details

Date Published: 14 September 1994
PDF: 4 pages
Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); doi: 10.1117/12.185082
Show Author Affiliations
Seshadri Ramakrishnan, Fraunhofer Institut fuer Physikalische Messtechnik (Germany)
Heinrich A. Hoefler, Fraunhofer Institut fuer Physikalische Messtechnik (Germany)


Published in SPIE Proceedings Vol. 2360:
Tenth International Conference on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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