Control systems using modal domain optical fiber sensors for smart structure applications

Douglas K. Lindner, Karl M. Reichard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, a new class of sensors has emerged for structural control which respond to environmental changes over a significant gauge length; these sensors are called distributed-effect sensors. These sensors can be fabricated with spatially varying sensitivity to the distributed measurand, and can be configured to measure a variety of structural parameters which cannot be measured directly using point sensors. Examples of distributed-effect sensors include piezoelectric film, holographic sensors, and modal domain optical fiber sensors. Optical fiber sensors are particularly attractive for smart structure applications because they are flexible, have low mass, and can easily be embedded directly into materials. In this paper we describe the implementation of weighted modal domain optical fiber sensors. The mathematical model of the modal domain optical fiber sensor model is described and used to derive an expression for the sensor sensitivity. The effects of parameter variations on the sensor sensitivity are demonstrated to illustrate methods of spatially varying the sensor sensitivity.

Original languageEnglish (US)
Title of host publicationSmart Structures and Materials
PublisherPubl by ASME
Pages117-121
Number of pages5
ISBN (Print)0791808580
StatePublished - Dec 1 1991
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Atlanta, GA, USA
Duration: Dec 1 1991Dec 6 1991

Publication series

NameAmerican Society of Mechanical Engineers, Aerospace Division (Publication) AD
Volume24
ISSN (Print)0733-4230

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAtlanta, GA, USA
Period12/1/9112/6/91

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Space and Planetary Science

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  • Cite this

    Lindner, D. K., & Reichard, K. M. (1991). Control systems using modal domain optical fiber sensors for smart structure applications. In Smart Structures and Materials (pp. 117-121). (American Society of Mechanical Engineers, Aerospace Division (Publication) AD; Vol. 24). Publ by ASME.