Fiber optic multiple sensor for simultaneous measurements of           temperature and vibrations

Massimo Brenci; Andrea A. Mencaglia; Anna Grazia Mignani; V. Barbero; P. L. Cimbrico; P. Pessino

doi:10.1117/12.50019

1 August 1991 Fiber-optic multiple-sensor for simultaneous measurements of temperature and vibrations

Massimo Brenci, Andrea A. Mencaglia, Anna Grazia Mignani, V. Barbero, P. L. Cimbrico, P. Pessino

Proceedings Volume 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91; (1991) https://doi.org/10.1117/12.50019
Event: International Conference on Optical Fibre Sensors in China, 1991, Wuhan, China

Abstract

A fiber-optic multiple sensor is presented which is addressed for application in the wiring of high-power electric generators. The simultaneous and independent measurement of temperature and vibration amplitude at 100 Hz is obtained by means of a single sensor. The probe is based on a fiber-optic proximity sensor which detects the light intensity modulation induced by an elastic transducer. The nonlinear region of the optical-head response is exploited, together with appropriate signal processing, so as to obtain intrinsically down-lead insensitive sensor-output.

Citation Download Citation

Massimo Brenci, Andrea A. Mencaglia, Anna Grazia Mignani, V. Barbero, P. L. Cimbrico, and P. Pessino "Fiber-optic multiple-sensor for simultaneous measurements of temperature and vibrations", Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); https://doi.org/10.1117/12.50019

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KEYWORDS

Sensors

Temperature metrology

Fiber optics sensors

Fiber optics

Calibration

Head

Signal detection

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