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:
Apr. 24, 1979
Filed:
Dec. 13, 1977
Erich Knothe, Bovenden, DE;
Christoph Berg, Gottingen, DE;
Sartorius Werke GmbH, Gottingen, DE;
Abstract
An electromagnetically compensating force-measuring or weighing device includes a working coil disposed in the air gap of a fixed magnetic circuit which includes a permanent magnet. The working coil is subject to the influence of the load to be measured. An indicator responsive to the position of the working coil, has its output fed to a control amplifier, the working coil being fed the output signal from the control amplifier whereby it is brought to the zero position. An additional coil is connected electrically in series with the working coil, the magnetic field produced by the additional coil being determined by a measurement sensor. The output signal of the measurement sensor is a measure of the load to be measured.