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. 24, 2016
Filed:
Mar. 24, 2014
Applicant:
Sas E&p Ltd., Calgary, CA;
Inventors:
Assignee:
SAS E&P LTD., Calgary, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 9/06 (2006.01); H04R 11/02 (2006.01); G01V 1/18 (2006.01); H04R 9/04 (2006.01); G01V 1/16 (2006.01); G01V 13/00 (2006.01); B06B 1/04 (2006.01);
U.S. Cl.
CPC ...
G01V 1/184 (2013.01); B06B 1/04 (2013.01); G01V 1/162 (2013.01); G01V 1/18 (2013.01); G01V 1/181 (2013.01); G01V 1/182 (2013.01); G01V 1/183 (2013.01); G01V 13/00 (2013.01); H04R 9/04 (2013.01);
Abstract
An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure. In response to external vibration, the coil structure and the magnetic structure are movable with respect to each other. The coil structure comprises at least two sets of coils overlapped in space, of which a first coil set is for detecting vibration and a second coil set is for applying control in accordance with a control signal.