Weighing scales – Self-positioning – Electrical current generating or modifying
Reexamination Certificate
2005-05-03
2005-05-03
Gibson, Randy W. (Department: 2841)
Weighing scales
Self-positioning
Electrical current generating or modifying
C073S001150, C073S862622, C073S862627, C073S862631
Reexamination Certificate
active
06888074
ABSTRACT:
Simple and inexpensive electrical compensation for off-axis and off-center loading sensitivity is possible in compression column load cells comprising a pair of compensation strain gages in series with each of the main strain gages in the load cell. The compensation gages are arranged crosswise to each associated main strain gage, and connected in series with their associated main strain gage. Each set of one main strain gage and two series connected compensation gages form one bridge arm in a strain gage bridge. Two compensation gages meet at each bridge corner, and are shunted by a common trimming resistor. The loading sensitivity compensation works for both conventional fixed axis load cells and Rocker Pin load cells.
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Gibson Randy W.
The Flintec Group, Ltd.
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