MULTI-AXIS STRAIN STATE SENSOR BASED ON OPTICAL FIBER TECHNOLOGY

• 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:

  _unreg_wc-2000.204

Event details:

• IMEKO TC:
• 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