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. 07, 2019
Filed:
Aug. 15, 2017
Applicant:
Xiaotian Steve Yao, Diamond Bar, CA (US);
Inventor:
Xiaotian Steve Yao, Diamond Bar, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 11/32 (2006.01); G01R 15/24 (2006.01); G01K 11/00 (2006.01);
U.S. Cl.
CPC ...
G01K 11/32 (2013.01); G01K 11/00 (2013.01); G01R 15/246 (2013.01);
Abstract
Techniques and devices for sensing or measuring electric currents and/or temperature based on photonic sensing is disclosed. An optical current sensor head is located near or at a current-carrying conductor so that a magnetic field associated with the current is present at a Faraday material and the optical detection unit detects the light from the Faraday material to determine a magnitude of the current. An optical temperature sensor head is located near or at a location so that the temperature at a temperature-sensing Faraday material is reflected by the optical polarization rotation which is detected to determine the temperature.