The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Apr. 24, 2017
Siemens Aktiengesellschaft, Munich, DE;
Stefan Lecheler, Berlin, DE;
Mario Schaefer, Potsdam, DE;
Siemens Aktiengesellschaft, Munich, DE;
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.