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:
Nov. 17, 2020
Filed:
Aug. 20, 2018
Applicant:
Regents of the University of Minnesota, Minneapolis, MN (US);
Inventors:
Heng Wang, Minneapolis, MN (US);
Rajesh Rajamani, Saint Paul, MN (US);
Ryan Madson, Minneapolis, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/20 (2006.01); G01D 5/14 (2006.01); G01V 3/12 (2006.01); G01V 3/08 (2006.01);
U.S. Cl.
CPC ...
G01D 5/2013 (2013.01); G01D 5/147 (2013.01); G01V 3/081 (2013.01); G01V 3/12 (2013.01);
Abstract
A position sensing system for measuring a position of a linearly moving object includes a high magnetic permeability material positioned on the moving object, an electromagnet configured to generate an alternating magnetic field, and at least one magnetic sensor configured to measure an intensity of a first magnetic field that is based on the alternating magnetic field. A controller is configured to estimate a linear position of the moving object based on the measured intensity of the first magnetic field.