Method for establishing a correlation between a first state of a piezoelectric component and a second state of the component and use of said correlation

US7654126B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Karl Lubitz · Ottobrunn, DE
• Carsten Schuh · Baldham, DE
• Andreas Wolff · Munich, DE

Key dates

• Filing date: Jan 12, 2005
• Grant date: Feb 2, 2010
• Expiry date: Aug 28, 2025

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/50

Abstract

A method for producing a correlation between a first state of a piezoelectric component (1, 20) comprising a piezoceramic element and a second state of the component comprises the following steps: a) a first group of components respectively in the first state is prepared (101), b) at least one defined characteristic of each component of the first group is determined (102), c) the piezoceramic element of the components of the first group is polarised, and a corresponding component of a second group in the second state is thus created from each component of the first group (103), d) at least one defined characteristic of each component of the second group is determined (104), and e) the correlation is produced by comparing the defined characteristics of each component of the first group with the defined characteristic of the corresponding component of the second group (105).