Optically Powered Sensors: A Systems Approach To Fiber Optic Sensors

James Lenz; Paul Bjork

doi:10.1117/12.947855

29 November 1988 Optically Powered Sensors: A Systems Approach To Fiber Optic Sensors

James Lenz, Paul Bjork

Proceedings Volume 0961, Industrial Optical Sensing; (1988) https://doi.org/10.1117/12.947855
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States

Abstract

For more than 10 years fiber optic sensors have been projected as a dominant sensor technology for the future. This projection has yet to be realized. There continues to be a substantial level of research and development in various fiber sensors concepts yet only a few products are available commercially. The six major factors limiting the success of the fiber sensors in the marketplace are identified. An alternate approach to fiber sensors is described which take a systems approach to producing fiber sensors. It combines the advantages of optical fibers with the low power electronic sensor technology currently available. A single multimode fiber is connected between the readout and the transducer. Optical energy transmitted from the readout is converted to electricity at the transducer. Digital data from the transducer is synchronously transmitted over the fiber to the readout. Prototypes of magnetic (i.e., current), temperature, position, and proximity sensors have been built and will be described. A discussion comparing optical and electrical sensors is also included.

Citation Download Citation

James Lenz and Paul Bjork "Optically Powered Sensors: A Systems Approach To Fiber Optic Sensors", Proc. SPIE 0961, Industrial Optical Sensing, (29 November 1988); https://doi.org/10.1117/12.947855

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