Fiber-optic wheel rotation sensor. Final report CRADA No. LA93C10086 | Zendy

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Fiber-optic wheel rotation sensor. Final report CRADA No. LA93C10086

Publication year - 1997

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/461248

Subject(s) - optics , rotation (mathematics) , light intensity , intensity (physics) , optical fiber , physics , materials science , crystal (programming language) , computer science , programming language , artificial intelligence

Two approaches for a fiber optic wheel rotation sensor down to zero RPM have been pursued. The first approach using magnetic domain diffraction of light in a BIG (bismuth iron garnet) material has been demonstrated and the further technical developments to routinely produce a practical product have been identified. The second approach involving Faraday rotation of light within the BIG crystal has been developed and a working sensor has been demonstrated. Both sensors rely on a magnetic tone ring which is mounted within the bearing of the wheel

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