Method and apparatus for dynamically check weighing
AssigneeSartorius AG
InventorAlfred KLAUER
Life of this patent
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Abstract
A method and an apparatus for dynamically check weighing objects (18a-c) that are guided across a weight-sensitive zone (14) of a weighing device (12) by a conveying mechanism (20a-c). At regular intervals, the weight-sensitive zone (14) supplies individual measured weight values (E1, . . . , En) from which resulting weight values are derived in a digital evaluation unit (16) by calculating mean values. The evaluation unit (16) includes a plurality of cascading mean value filters (24a-e) that have different filter lengths which are varied by a common scaling value in accordance with a spatial dimension of the objects (18a-c).
Claims16
A method for dynamically check weighing objects, comprising:
- conveying the objects across a weight-sensitive zone of a weighing device with a conveying mechanism;
- at regular intervals and from the weight-sensitive zone, supplying individual measured weight values, and deriving resulting weight values in a digital evaluation unit by calculating mean values;
- and
- in the evaluation unit varying respective filter lengths of a plurality of cascading mean value filters by a common scaling value in accordance with at least one spatial dimension for given ones of the objects.
An apparatus for dynamically check weighing objects, comprising:
- a weighing device with a weight-sensitive zone,
- a conveying mechanism that conveys the objects across
- the weight-sensitive zone of the weighing device, wherein the weight-sensitive zone is configured to supply individual measured weight values at regular intervals, and
- a digital evaluation unit configured to derive resulting weight values by calculating mean values,
- wherein the evaluation unit comprises a plurality of cascading mean value filters of different filter lengths and a filter-length adjuster configured to vary the filter lengths by a common scaling value in accordance with at least one spatial dimension for given ones of the objects.
Dependencies are inferred from the claim text.