Measurement Techniques For Magnetic Field Gradient Detection

Autor:	R. L. Prater, P. A. Leilabady, K. L. Sweeney, M. Corke
Rok vydání:	1987
Předmět:	Materials science Modulation Magnetism Low magnetic field Acoustics Range (statistics) Electronic engineering Magnetostriction Magnetic field gradient
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.937505
Popis:	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.
Databáze:	OpenAIRE
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