The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1990
Filed:
Dec. 15, 1988
Applicant:
Inventors:
Jean Crescini, Domene, FR;
Denis Duret, Grenoble, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ; G01R / ;
U.S. Cl.
CPC ...
324244 ; 3336 / ; 324260 ; 324686 ;
Abstract
Continuous vectorial magnetometer having a magnetostrictive pickup including a capacitive pickup which contains a capacitor at least one of whose electrodes is constituted of a material having magnetostrictive properties, and means for measuring the variation of the capacity of the said capacitive pickup under the action of an external magnetic field. The invention also relates to a gradiometer entailing the application of two capacitive pickups of the kind used in a magnetometer. The magnetometer is applied to the measurement of continuous or slowly varying magnetic fields, and the gradiometer to the measurement of a magnetic field gradient.