Piezoelectric bending transducer and method for producing the transducer

US6570300B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Michael Riedel · Buchbach, DE
• Hans-Jürgen Sestak · Lichtenfels, DE

Key dates

• Filing date: Nov 23, 1998
• Grant date: May 27, 2003
• Expiry date: May 31, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/875

Abstract

A bending transducer has a piezoelectret carried on a substrate of electrically insulating material. An electrically conductive coating, such as a foil, a grid foil, a grid mesh, or mutually parallel strips, connects the inner electrode of the piezoelectret to the substrate and forms electrical contact with the inner electrode at a number of points. The bending transducer is particularly suited for driving a drafting, weaving or knitting machine in the textile industry.