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:
Aug. 23, 2016
Filed:
Oct. 18, 2013
Sick Stegmann Gmbh, Donaueschingen, DE;
Massimo Francescon, Turin, IT;
SICK STEGMANN GMBH, Donaueschingen, DE;
Abstract
The invention relates to a capacitive position encoder (), comprising at least one capacitor with a first capacitor plate and a second capacitor plate, a dielectric modulator that is movably arranged between said first capacitor plate and said second capacitor plate, a signal source () for providing a phase-shifted excitation signal to the first capacitor plate of said at least one capacitor, and a charge amplifier () that is electrically connected to the second capacitor plate of said at least one capacitor, wherein a feedback loop () of the charge amplifier () comprises a feedback capacitor (C), wherein the capacitive position encoder () also comprises a shock cancellation circuit () that forms a parallel circuit with the feedback loop () including the feedback capacitor (C) and that the shock cancellation circuit () comprises a low pass filter ().