Fibre optic distributed sensor of vibration in unbalanced Michelson's interferometer configuration

• Autorzy: Szustakowski M. , Chojnacki M. , Życzkowski M. , Pałka N.
• Języki publikacji: EN

Abstrakty

EN

The subject of this work is a novel fibre optic distributed sensor system. the system uses a technique called multiplexed reflectometric interferometry to measure dynamic strain in a network of single mode optical fibre sensors. The sensor is constructed on an unbalanced fibre optic. Michelson's interferometer. This article presents influence of the wavelength change of radiation source on the course of interference contrast function of the unbalanced Michelson's interferometer. A digital demodulation with application of a fibre optic coupler 3x3 is also presented. The maximum number of individual sensors is currently limited by the optical power budget and will increase with new technology implementation. The system can address a variety of sensor types for different physical parameters.

Słowa kluczowe

EN

distributed fibre sensor; unbalanced Michelson's interferometer; sensor of vibration

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2001
• Tom: Vol. 9, No. 4
• Strony: 413--417
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Szustakowski M.

autor

Chojnacki M.

autor

Życzkowski M.

autor

Pałka N.

• Institute of Optoelectronics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland,

Bibliografia

• 1. M. Szustakowski and W.M. Ciurapiński, 'Fibre optic distributed sensor" Proc. , SPIE 3054, 381-389 ( 1997).
• 2. M. Szustakowski, W.M. Ciurapiński, and L. Jodłowski, „Some issues on phase analysis”, Molecular and Quantum Acoustics 20, 263-277 (1999).
• 3. V.N. Mahajan, "Theory of acoustooptic interaction standing and travelling sound waves", Wave Electronics 20, 309-339( 1976).
• 4. A. Dandridge, "Fibre optic sensor based on the Mach--Zehnder and Michelson interferometers", in Fibre Optic Sensors: An Introduction for Engineers and Scientists, pp. 271-323, edited by E. Udd, John Wiley&Sons, 1991
• 5. W. Jin, D. Walsh, D. Uttamchandani, and B. Culshaw: "A digital technique for passive demodulation in a fibre optic homodyne interferometer", The 1 st European Conference on Smart Structures and Materials, 57-60 (1992).
• 6. I.J. Bush and D.R. Sherman, High performance interferometric demodulation techniques", Proc. SPIE 1795, 412-420 ( 1992).
• 7. B. Chiu and M.C Hastings, 'Digital demodulation for passive homodyne optical fibre interferometry based on a 3x3 coupler” Proc. SPIE 2292, 371-381 (1994)-