Patent · US Active

Determining the movement profile of an armature in a magnet

US10796832B2 · kind B2 · utility

0Cited by

0References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Lecheler · Berlin, DE
Mario Schaefer · Potsdam, DE

Key dates

Filing date	Apr 24, 2017
Grant date	Oct 6, 2020
Priority date	—
Expiry date	Jun 11, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/38
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and a device determine a movement profile of a solenoid plunger in a solenoid for monitoring a plunger-type armature movement for changes. The solenoid is an electromagnet in which a magnetic field can be generated by an electrical coil and a measuring unit is connected to the electrical coil. The method includes measuring a current profile with respect to time when the solenoid is operated, examining a measured current profile with respect to time for a position of a first reversal point in respect of time after operation of the solenoid and a current intensity, and assigning the position of the first reversal point to a movement end of the plunger-type armature.

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