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Proceedings Paper

Fiber optic pore water pressure sensor for civil engineering applications
Author(s): Barry G. Grossman; Paul J. Cosentino; Shinobu Doi; Girish Kumar; John Verghese
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Paper Abstract

Low cost, rugged and reliable fiberoptic sensors are being developed to meet the needs of geotechnical engineers. The primary emphasis has been on load and pressure sensors, including pore water pressure sensors. The microbend sensors developed have been tested in the laboratory up to water pressures of 100 psi and loads of 50 lb. Accuracy of sensor measurements are within 5% and is being improved upon. Sensors with larger range or more sensitivity can easily be built without changing the basic sensor design. A semi-automated calibration and testing system was developed to characterize the sensors. In this paper we describe some of the applications for the sensors, their construction, characterization system, and experimental performance.

Paper Details

Date Published: 7 February 1994
PDF: 10 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166869
Show Author Affiliations
Barry G. Grossman, Florida Institute of Technology (United States)
Paul J. Cosentino, Florida Institute of Technology (United States)
Shinobu Doi, Florida Institute of Technology (United States)
Girish Kumar, Florida Institute of Technology (United States)
John Verghese, Florida Institute of Technology (United States)


Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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