Patent · US Expired

Method of producing sensor element

US6834419B2 · kind B2 · utility

7Cited by

18References

6Claims

0Family size

Assignee

Endress+Hauser Inc. · DE

Inventors

Sergej Lopatin · Lörrach, DE
Igor Getman · Lörrach, DE
Anatoliy Panitch · Rostov-on-Don, RU
Yuriy Wusewker · Rostov-on-Don, RU

Key dates

Filing date	Nov 7, 2003
Grant date	Dec 28, 2004
Priority date	—
Expiry date	Nov 7, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49798
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to an electromechanical drive or a sensor element composed of piezoelectric elements arranged in the form of a stack. The drive or the sensor element is intended for measurement instruments and operates even at very high temperatures.The new drive or the new sensor element (10) for this purpose comprises a number of piezoelectric ceramic layers (12a-f), with electrode layers (16a-e) in each case being arranged between two mutually facing surfaces of directly adjacent piezoelectric ceramic layers. Connectors (18a,b) in the form of wires run in grooves (14a-d) in the electrode layers (16a-e) in order to make electrical contact with the electrode layers (16a-e), and are passed out of the electrode layers (16a-e).

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