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:
Feb. 16, 2021
Filed:
Nov. 29, 2018
Microsemi Corporation, Chandler, AZ (US);
Ganesh Shaga, Warangal, IN;
Bala Sundaram Nauduri, Hyderabad, IN;
Microsemi Corporation, Chandler, AZ (US);
Abstract
An apparatus can include a first planar inductive sensor including two oscillator coils and two sensing coils. The apparatus can also include a second planar inductive sensor independent of the first sensor and also including a pair of oscillator and sensing coils. The apparatus can further include a high frequency alternating current carrier generator configured to inject high frequency alternating current carrier signals into the oscillator coils. The carrier signal for the oscillator coil of the first planar inductive sensor is 180 degrees out of phase with a 2oscillator coil of the same planar inductive sensor, and wound in an opposite geometric direction, and the oscillator coils of the other inductive sensor can also be wound similarly The two sensing coils of the first planar inductive sensor can be 90 degrees out of phase with each another, and the sensing coils of the other inductive sensor can also be wound similarly.