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. 12, 2019
Filed:
Apr. 02, 2015
Rosemount Aerospace Inc., Burnsville, MN (US);
Nghia T. Dinh, Burnsville, MN (US);
Rosemount Aerospace Inc., Burnsville, MN (US);
Abstract
A system for measuring an electrical current to a heater includes an electrical line between a first power source and the heater, a control sensor adjacent to the electrical line, a compensation sensor proximate the control sensor and an operational amplifier electrically connected to the control sensor and the compensation sensor. The control sensor is a Hall effect sensor to measure a first magnetic field induced by the electrical current and an ambient magnetic field and output a resulting first voltage. The compensation sensor is a Hall effect sensor with the same orientation as the control sensor to measure a second magnetic field induced by the ambient magnetic field and output a resulting second voltage. The operation amplifier is able to receive the first voltage and the second voltage and determine the electrical current flowing through the electrical line.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile