Development of a novel low-cost fiber optic system for structural applications

Phil Schaefer; Ken-An Lou; Gershon Yaniv; Don Stevens

doi:10.1117/12.238844

22 April 1996 Development of a novel low-cost fiber optic system for structural applications

Phil Schaefer, Ken-An Lou, Gershon Yaniv, Don Stevens

Proceedings Volume 2719, Smart Structures and Materials 1996: Smart Systems for Bridges, Structures, and Highways; (1996) https://doi.org/10.1117/12.238844
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

Abstract

A novel low-cost fiber optic sensor system for measuring strain in structures has been developed. The system uses low-cost digital electronics and a broad band light emitting diode (LED) to monitor low-attenuation fiber-optic strain gages. This paper introduces this new system. The architecture of the system is discussed, with details of the fiber optic strain sensing elements, the low-cost electronics, and the personal computer (PC) interface to the system. The tradeoffs which allow the low-cost system to be feasible are discussed. The laboratory experiments used to verify system performance are then presented. Finally, a description of a full-scale, outdoor application for monitoring the strain on the surface of a composite pipe segment is described.

Citation Download Citation

Phil Schaefer, Ken-An Lou, Gershon Yaniv, and Don Stevens "Development of a novel low-cost fiber optic system for structural applications", Proc. SPIE 2719, Smart Structures and Materials 1996: Smart Systems for Bridges, Structures, and Highways, (22 April 1996); https://doi.org/10.1117/12.238844

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