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Experimental Investigation on Temperature Dependence of the Performance in a Magnetostrictive Fiber-Optic Interferometric Magnetic Field Sensor

This paper studies the temperature dependence of the performance in magnetostrictive fiber-optic Michelson interferometric magnetic field sensors. Experiments are carried out and the results show that the sensor system output, system sensitivity and transducer's mechanical resonant frequency are strongly affected by the ambient temperature. Fitted expressions are provided and compensation methods are demonstrated with experimental verification.