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. 09, 2021
Filed:
Oct. 25, 2019
Applicant:
Pepperl+fuchs Gmbh, Mannheim, DE;
Inventor:
Thomas Kühn, Mannheim, DE;
Assignee:
PEPPERL+FUCHS SE, Mannheim, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/20 (2006.01);
U.S. Cl.
CPC ...
G01D 5/202 (2013.01);
Abstract
An inductive sensor, particularly for a proximity sensor, includes a resonance circuit including a sensing coil and an amplifier comprising a first gain stage and a second gain stage each coupled via respective adjusting elements with the resonance circuit to inject energy for maintaining an oscillation of the resonance circuit. The first gain stage provides a substantially linear amplification and the second gain stage provides a comparator characteristics.