MULTI-AXIS STRAIN STATE SENSOR BASED ON OPTICAL FIBER TECHNOLOGY

T. Rossmanith, X. D. Jin, J. S. Sirkis
Abstract:
This paper describes a single micro-optical fiber sensor capable of measuring four strains simultaneously in a composite structure. This single transducer is based on cascading four micro Fabry-Pérot cavities to measure three normal strains and one shear strain in the plane of the optical fiber cross-section. The development of the sensor fabrication and signal processing techniques are discussed. This fabrication includes designing and fabricating new optical fibers, optical fiber circuits, and an optical fiber multi-strain sensor head. This paper presents 2D and 3D finite element analysis to establish the transformation between fiber core and composite host strain states.
Keywords:
optical fiber three-strain sensor, Fabry-Pérot Interferometer, path matched differential interferometry, finite element analysis, micromechanics analysis
Download:
IMEKO-WC-2000-TC7-P204.pdf
DOI:
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Event details
Event name:
XVI IMEKO World Congress
Title:

Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

Place:
Vienna, AUSTRIA
Time:
25 September 2000 - 28 September 2000