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:
May. 05, 1987
Filed:
Nov. 30, 1984
Ernest M Hall, Jr, Houston, TX (US);
Oyo Corporation, U.S.A., Houston, TX (US);
Abstract
The method of detecting vibrations comprises establishing a magnetic circuit with magnetic flux producing means and at least one airgap. Elastically supporting an annular non-magnetic conductor within the airgap. Fixedly supporting an annular coil in the airgap without there being relative movement between the coil means and the airgap, so that an electric signal becomes induced in the coil means in response to relative movement between the annular conductor and the airgap. The vibration transducer comprises a magnetic circuit having magnetic flux producing means and at least one airgap. An annular non-magnetic conductor is elastically supported within the airgap. An annular coil means is fixedly supported in the airgap without there being relative movement between the coil means and the airgap, so that an electric signal becomes induced in the coil means in response to relative movement between the annular conductor and the airgap.