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:
Mar. 19, 1985
Filed:
Jun. 28, 1982
Paul F Hayner, Swampscott, MA (US);
Sanders Associates, Inc., Nashua, NH (US);
Abstract
A dual-axis magnetometer employs an electromagnet mounted by bender arms within a housing to permit pivotal vibration of the electromagnet with respect to the housing. The electromagnet is driven by an alternating current that causes it to vibrate in the presence of an external magnetic field having a component in a plane perpendicular to the axis of the electromagnet. Output signals are provided at conductors on opposite surfaces of the benders. By observing the relative magnitudes of the output signals and the relationships of their phases with that of the excitation signal, it is possible to determine the direction of that component of the external magnetic field that lies in a plane perpendicular to the electromagnet axis.