Invention Grant
- Patent Title: Weight sensor
- Patent Title (中): 重量传感器
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Application No.: US09576413Application Date: 2000-05-22
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Publication No.: US06365847B1Publication Date: 2002-04-02
- Inventor: Michael Müller , Ulrich Bajohr , Rudolf Müller , Werner Schulze , Detlef Erben , Herbert Engelhardt
- Applicant: Michael Müller , Ulrich Bajohr , Rudolf Müller , Werner Schulze , Detlef Erben , Herbert Engelhardt
- Priority: DE19923207 19990520
- Main IPC: G01G2124
- IPC: G01G2124

Abstract:
In a weight sensor operating according to the principle of electromagnetic force compensation, the essential parts are fabricated from a single block of material. The weight sensor has a load receiver (10), which is connected through an upper guide (12) and a lower (11) guide to the housing-integral base body (1) of the material block. The weight sensor also has several force-reduction translating levers (21,22; 24, 25,25′; 27,27′,28) and coupling elements (18,18′, 23, 26,26′) between the translating levers (21, 22; 24 ,25,25′; 27,27′,28). The housing-integral base body (1) projects in the direction of the load receiver (10), extends into the space between the two guides (11, 12) and forms a support point for the first translating lever (21, 22). The weight sensor is equipped with a coil (34), which is fastened at the longer lever arm (28) of the last translating lever (27,27′,28,29,29′) and is situated in the magnetic field of a permanent magnet. To reduce the overall height and to receive higher loads, at least one translating lever is at least partially split into two partial levers (25, 25′; 27,27′; 29,29′). At least one coupling element is split into two partial coupling elements (26,26′; 38,38′). The partial levers and the partial coupling elements are arranged symmetrically on both sides of the projecting part (3) of the base body (1).
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