Fiber Optic Magnetometers Using Planar And Cylindrical Magnetostrictive Transducers

F Bucholtz; A M Yurek; K P Koo; A Dandridge

doi:10.1117/12.937506

28 April 1987 Fiber Optic Magnetometers Using Planar And Cylindrical Magnetostrictive Transducers

F Bucholtz, A M Yurek, K P Koo, A Dandridge

Proceedings Volume 0718, Fiber Optic and Laser Sensors IV; (1987) https://doi.org/10.1117/12.937506
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

Fiber optic magnetometers which require high sensitivity at low frequencies (dc-10 Hz) rely on the nonlinear magnetostriction of materials such as amorphous metallic glass alloys. Typically, fiber is bonded to a magnetostrictive sample to convert strain in the sample to phase shift in a fiber interferometer. We present the results of measurements of the frequency dependence and dc and ac magnetic field sensitivity of both planar and cylindrical transducing elements, and discuss the practical advantages and disadvan-tages of each configuration.

Citation Download Citation

F Bucholtz, A M Yurek, K P Koo, and A Dandridge "Fiber Optic Magnetometers Using Planar And Cylindrical Magnetostrictive Transducers", Proc. SPIE 0718, Fiber Optic and Laser Sensors IV, (28 April 1987); https://doi.org/10.1117/12.937506

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