Calibration weight arrangement for an electronic balance

Details Calibration weight arrangement for an electronic balance Calibration weight arrangement for an electronic balance

2006-08-07

2009-12-15

Raevis, Robert R (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Dynamometer

Reexamination Certificate

active

07631536

ABSTRACT:
The calibration weight arrangement for an electronic balance (1) with a force-measuring cell (6) has a calibration weight (14) which can be coupled to the force-measuring cell (6). A transfer mechanism and a drive source are used to move the calibration weight vertically, in order to establish, as well as to release, the force-transmitting contact between the calibration weight and the force-measuring cell. The transfer mechanism has at least one resetting element (122), a lifting system (110) configured as a knee-joint linkage (117), and a multi-stable positioning element (115). Due to the feedback from the multi-stable positioning element, whose first stable state defines the calibrating position (132) and whose second stable state defines the rest position (133) of the transfer mechanism, the actuator (118) is energized only during the phases when the transfer mechanism is moving.

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Breidert, J. and Jansen, S., Keep It Simple: Kosmak and iLiros, Rubin Feb. 2001, vol. 11, Winter semester 2001.

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