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:
Oct. 05, 2010
Filed:
Nov. 29, 2007
Applicants:
George E. Rollins, Chelmsford, MA (US);
Prachi S. Kulkarni, Burlington, MA (US);
Inventors:
George E. Rollins, Chelmsford, MA (US);
Prachi S. Kulkarni, Burlington, MA (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An inductive proximity sensor is disclosed. The proximity sensor includes a resonator with a bifurcated inductance coupled to a plurality of transimpedance amplifiers. A portion of the resonator is configured to generate eddy currents in a target containing metal. In various embodiments, the transimpedance amplifiers provide signals associated with eddy currents to a synchronous detector. Apparatus and methods for operating the inductive proximity sensor are disclosed.