Calibration weight arrangement for an electronic balance

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

2008-07-08

2008-07-08

Raevis, Robert R (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Dynamometer

Reexamination Certificate

active

11164795

ABSTRACT:
An electronic balance with a force-transmitting device (1, 101) has a calibration weight arrangement (4, 104). The arrangement includes a calibration weight (3, 103) capable of being coupled to the force-transmitting device (1, 101). It also includes a transfer mechanism and a drive source to effect a guided movement of the calibration weight (3, 103). The drive source has an actuator (16) that cooperates with the transfer mechanism and consists, at least in part, of a shape memory alloy. The actuator (16) moves the calibration weight (3, 103) through a structural change of the shape memory alloy as a result of a temperature change.

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