Patent · US Active

Dynamic sensor for measurement device

US11075632B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

PEPPERL+FUCHS GMBH · US

Inventors

Thomas Kuhn · Heilbronn, DE
Jochen Vater · Mannheim, DE
Christoph Braunsmann · Dackenheim, DE

Key dates

Filing date	Oct 25, 2019
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Oct 25, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/9401
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An oscillating sensor device, particularly for a proximity sensor, for sensing a dynamic change of attenuation caused by a measurable physical effect includes an oscillator including a resonance circuit and an amplifier fed back to the resonance circuit and configured to maintain oscillation of the oscillator, and a control unit configured to control the open loop gain of the oscillator. The amplifier comprises a non-linear gain characteristics defining an operating point at a preset amplitude of oscillation. The control unit is configured to control the open loop gain of the oscillator so that the operating point is set to a preset amplitude of the oscillation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.