Mettler-toledo Gmbh

George Fankhauser

Hans-Rudolf Burkhard

Andreas Metzger

Ferdinand Schneider

Markus Uster

David Koller

Martin Heusser

A calibration weight assembly () has at least one calibration weight () and a transfer mechanism, and is used with a gravimetric force-measuring device () having a fixed region (), a load-receiving region (), and a measuring sensor (). The transfer mechanism has at least one poly-stable positioning element (), a first stable state of which defines a calibration position (KP) and a second stable state of which defines a resting position (RP) of the transfer mechanism. The at least one calibration weight can be coupled with the load-receiving region. The transfer mechanism, as actuated by the measuring sensor, transfers the at least one calibration weight from the calibration position to the resting position, or vice versa.

Calibration weight assembly for a gravimetric measuring device

The invention concerns a calibration device () for a force-measuring device (), specifically a balance, with an electrically controllable force-generating means () designed to be coupled to a force-measuring cell () of a force-measuring device () in such a way that a predefined force (F) can be applied to the force-measuring cell (), so that the latter generates a measuring signal (S) which correlates to the applied force (F) and which can be transmitted to a processing unit (, PU), where it can be processed in reference to the predefined force (F). The calibration device () includes a calibration control unit (CCU) which has access to at least one predefined parameter (P) characterizing the force-measuring device (() and/or the calibration device (), wherein the calibration control unit (CCU) can be connected by way of a communications link () to the processing unit (, PU) in order to exchange information signals (S) with the latter, and wherein the calibration control unit (CCU) is configured to generate control signals based on the information signals (S) and the parameter (P) in order to thereby control the force-generating means ().

Calibration device for a force-measuring device, and force-measuring device

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Erlenbach, Switzerland

George Fankhauser