Patent · US Active

Method and position detection apparatus for detecting a position of a movable element of a drive apparatus

US9188421B2 · kind B2 · utility

10Cited by

3References

20Claims

0Family size

Assignee

Beckhoff Automation GmbH · DE

Inventors

Uwe Prüssmeier · Lemgo, DE
Jan Achterberg · Duisburg, DE
Tim Kaulmann · Paderborn, DE
Manuel Bettenworth · Gütersloh, DE
Jan-Hendrik Bade · Verl, DE

Key dates

Filing date	Aug 15, 2013
Grant date	Nov 17, 2015
Priority date	—
Expiry date	Jan 17, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02P31/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one field coil and at least one secondary coil associated with the field coil, wherein an electrical excitation pulse is applied to the field coil in order to induce an electrical voltage in the secondary coil, a secondary coil voltage is measured and the position of the movable element is determined on the basis of the measured secondary coil voltage. The invention also relates to a position detection apparatus and/or a drive apparatus.

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