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All-Fiber Michelson Interferometer Proposed as Unique Sensor

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Measurement of mechanical parameters could be temperature-independent.

Breck Hitz

Researchers at Harbin Engineering University in China have demonstrated an all-fiber Michelson interferometer that they suggest could be used as a displacement sensor, an accelerometer or a flow-velocity sensor. Unlike many other fiber optic sensors, theirs would be independent of environmental temperature and pressure changes because both arms of the Michelson would be affected equally by such changes. The researchers constructed the interferometer by splicing a dual-core fiber onto the end of a single-mode fiber and coating a 40-percent-reflecting silver surface onto the end of the...Read full article

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    Published: November 2006
    displacement sensorfiber optic sensorsinterferometersResearch & TechnologySensors & Detectors

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