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.

Date of Patent:
May. 08, 2018

Filed:

Sep. 24, 2015
Applicant:

Mettler-toledo Ag, Greifensee, CH;

Inventors:

Daniel Schrag, Lufingen, CH;

Daniel Rupp, Felben-Wellhausen, CH;

Christoph Trautweiler, Regensdorf, CH;

Hans-Rudolf Burkhard, Wila, CH;

Assignee:

Mettler-Toledo GmbH, Greifensee, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01G 23/01 (2006.01); G01G 7/04 (2006.01);
U.S. Cl.
CPC ...
G01G 23/01 (2013.01); G01G 7/04 (2013.01); G01G 7/045 (2013.01);
Abstract

A force-measuring device () with a parallelogram linkage has a measurement transducer coupled to it. A coil () of the transducer has guided mobility in a magnet system () and can carry an electric current (). A position sensor () detects the deflection of the coil () from a balanced position relative to the magnet system when a load is placed on the force-measuring device. The electric current () flowing through the coil (), by way of the interaction between the coil and the magnet system, returns the coil and the movable parallel leg to the balanced position. A system-characterizing means () is established in a processor unit (). The system-characterizing means and an unchangeable system reference means () are compared to determine the functionality of the device. The functionality is verified by the magnitudes of the electric current and the deflection of the coil from its balanced position.


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