Sartorius Lab Instruments Gmbh & Co., Kg

Sartorius Weighing Technology Gmbh

Christian Schrader

Michael Laubstein

Heinrich Feldotte

Winfried Graf

Heyko Holst

Michael Mueller

Jan Von Steuben

Friedrich Helmsen

Tanja Mueck

Jonas Bode

Ralf Mueller

Jochen Doerner

Lars Bornemann

Michael MÜLLER

Dirk Ahlbrecht

Thomas Pertsch

Tanja MÜCK

A pot magnet () for a moving coil () of an electronic balance operating using the electromagnetic compensation principle includes: &#x2014;a pot base () and a pot wall () rising vertically from the pot base, and &#x2014;a permanent magnet structure () disposed within the pot wall and having an annular gap thereto, which structure has a permanent magnet body () arranged on the pot base side and a pole plate () connected to the surface thereof facing away from the pot base side. The pole plate is fixed by a rigid mechanical connection independent of the permanent magnet body to the pot base at a predetermined distance therefrom and the permanent magnet body is bonded to the pole plate on a surface facing the pot base without contacting the pot base.

Pot magnet for a moving coil arrangement in an electronic balance

A precision balance provided with a windshield having at least one wall element (), which is provided with an electrically conductive coating (), and having an electrical connection () for the coating. An electrical test device () is additionally provided, which is integrated into the precision balance and with which it is possible to check whether the coating () is connected to the electrical connection ().

Windshield for a precision balance

A weighing scale, e.g. a top-pan scale, having a scale pan () supported on a force transducer, and a corner load sensor () measuring the tilting of the scale pan () relative to the force transducer. The corner load sensor includes a light beam source () emitting a first light beam and a second light beam. The first light beam and the second light beam are directed toward a reflecting surface on an underside of an arrangement that includes the scale pan (). The first light beam and the second light beam are respectively inclined relative to the reflecting surface of the untilted scale pan (). The corner load sensor () of the scale also includes a first optical sensor () measuring the first light beam reflected by the reflecting surface. If no corner load exists, a predetermined proportion () of the reflected first light beam is directed to the first optical sensor (). If the scale pan () is tilted, the proportions of the reflected light beams which fall on the two optical sensors () change. The corner load sensor () has an evaluating unit determining the tilt of the scale pan () dependent on the light quantities measured with the two optical sensors ().

Scale with corner load sensor and method for measuring tilts resulting from corner loads

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Bodenfelde, Germany

Christian Schrader