Sartorius

Rainer Exner

Klaus Cornelius

Erich Knothe

Franz-Josef Melcher

Eberhard Stadler

Solar cells (5) for the supply of electric energy are located in an electronic balance in a manner suitable for the requirements of the balance and storage means for storing the electric current generated by the solar cells (5) are present. The solar cells (5) are located, for example, in a folding cover (7) which protects the balance when it is not in use and which is folded up at the start of operation. In addition, a display (9) for the state of charge of the storage means (76) is present.

Nonsystem-connected electronic balance

Disclosed is a platform balance with a weighing scale, with at least two levers (2) which are mounted via spring joints (3) on support points (5) fixed to the housing, with a force summation part (6) which is guided in parallel by an upper and lower guide rod (7) and with coupling elements (4) which connect the longer lever arm of the levers (2) to the force summation part (6) that the shorter lever arm of each lever (2) is connected by a coupling element (13) to a load receiver (14), that each load receiver (14) is guided in parallel by an upper and a lower guide rod (15) and that the weighing scale (18) is supported on the load receivers (14). As a result thereof, deformations of the weighing scale or of its carrier construction can no longer affect the levers (2) and their lever arm ratio. In an advantageous embodiment the parallel guide of a load receiver (14) and the support points ( 5) of the associated lever (2) form a component which can be derived e.g. from the parallel guide system of a precision balance with scale on top.

Platform balance

An electric inclination meter is built into a high-resolution electric balance with a measured value receiver, a microprocessor for digital signal processing and with a digital display. This inclination meter compensates the inclination-dependent errors of the balance. The inclination meter can have a movable suspended mass or it can have a container which is partially filled with liquid, thus forming a gas bubble. The positional deviation of the movable elements can be picked up optically or inductively.

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Wollbrandshausen, Germany

Rainer Exner