Patent · US Active

Capacitive sensor arrangement

US11530956B2 · kind B2 · utility

1Cited by

1References

15Claims

0Family size

Assignee

IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. · LU

Inventors

Daniel FERRING · Zemmer, DE
Erik HOLZAPFEL · Prüm, DE
Laurent Lamesch · Reichlange, LU
Jochen Landwehr · Trier, DE
Michael Putz · Trier, DE

Key dates

Filing date	Jun 22, 2018
Grant date	Dec 20, 2022
Priority date	—
Expiry date	Aug 8, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60N2230/10
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A capacitive sensor arrangement includes a sensing electrode having a capacitance (Cx) which depends on the presence of an object in a detection space; a measurement device connected to the sensing electrode and configured to detect the capacitance (Cx) of the sensing electrode; and a conducting structure, wherein the capacitance (Cx) of the sensing electrode depends on a potential of the conducting structure. In order to obtain a reliable capacitive measurement, the measurement device is connected to a power supply between a first potential (Vs) and a second potential (GND), the measurement device being connected to the second potential exclusively via the structure.

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