Measurement Techniques For Magnetic Field Gradient Detection

P Akhavan Leilabady; M Corke; K L Sweeney; R L Prater

doi:10.1117/12.937505

28 April 1987 Measurement Techniques For Magnetic Field Gradient Detection

P Akhavan Leilabady, M Corke, K L Sweeney, R L Prater

Proceedings Volume 0718, Fiber Optic and Laser Sensors IV; (1987) https://doi.org/10.1117/12.937505
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

Two techniques based on the magnetically induced strain in a magnetostrictive sensing element are described in which detection schemes involving high frequency periodic modulation of the sensing element are employed for the recovery of very slowly varying low magnetic field gradients. Measurement resolutions in the range of 0.1 μOe to 0.01 μOe per unit sensing element length for test fields of frequencies in the range 0.1 Hz to 1 Hz are obtained.

Citation Download Citation

P Akhavan Leilabady, M Corke, K L Sweeney, and R L Prater "Measurement Techniques For Magnetic Field Gradient Detection", Proc. SPIE 0718, Fiber Optic and Laser Sensors IV, (28 April 1987); https://doi.org/10.1117/12.937505

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