Patent · US Active

Method for measuring capacitance and capacitive sensor unit

US9304156B2 · kind B2 · utility

8Cited by

6References

7Claims

0Family size

Assignee

Brose Fahrzeugteile GmbH & Co. KG, Hallstadt · DE

Inventors

Thomas Weingaertner · Memmelsdorf, DE
Holger Wuerstlein · Zeil am Main, DE
Florian Pohl · Ebersdorf, DE

Key dates

Filing date	Aug 8, 2013
Grant date	Apr 5, 2016
Priority date	—
Expiry date	Dec 26, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/960725
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method measures a capacitance. According to the method, a first detection measurement for the capacitance which is to be measured is detected by a first measurement method during a first measurement phase. In this case, a second measurement phase is started when the first detection measurement satisfies a transition criterion. A second detection measurement for the capacitance which is to be measured is detected during the second measurement phase by a second measurement method which differs from the first measurement method. The second measurement method has higher measurement accuracy than the first measurement method but also greater energy expenditure.

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