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:
Dec. 19, 2017
Filed:
May. 06, 2015
Applicant:
Teleldyne Scientific & Imaging, Llc., Thousand Oaks, CA (US);
Inventors:
Weiya Zhang, Thousand Oaks, CA (US);
Brian Gregory, Newbury Park, CA (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/20 (2006.01); G01D 5/245 (2006.01); G01D 5/165 (2006.01); G01D 5/24 (2006.01);
U.S. Cl.
CPC ...
G01D 5/2454 (2013.01); G01D 5/165 (2013.01); G01D 5/2046 (2013.01); G01D 5/2053 (2013.01); G01D 5/2405 (2013.01);
Abstract
A nonvolatile, absolute multi-turn rotation sensor employs a magnetic particle that is indexed around a serpentine channel with successive passes of a magnet caused by rotation of the rotation sensor shaft. Sensors at regular locations around the track allow determination of the position of the magnetic particle and thus the total number of revolutions of the shaft.