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. 21, 2017
Filed:
Nov. 29, 2007
George E. Rollins, Chelmsford, MA (US);
Weihua Chen, Westford, MA (US);
Prachi S. Kulkarni, Burlington, MA (US);
Diana A. Sufariu, Nashua, NY (US);
George E. Rollins, Chelmsford, MA (US);
Weihua Chen, Westford, MA (US);
Prachi S. Kulkarni, Burlington, MA (US);
Diana A. Sufariu, Nashua, NY (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
An inductive proximity sensor is disclosed. The proximity sensor includes a source circuit with an inductive element configured to deliver energy to a resonator when a source current is changed. In various embodiments, the source current is provided a step current source. In various embodiments, the source current is provided by constant current source coupled to the inductive element by a switch. Apparatus and methods for operating the inductive proximity sensor are disclosed.