Resistance-gauge force transducer

Details Resistance-gauge force transducer Resistance-gauge force transducer

1987-04-28

1988-11-29

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

73765, 7386265, G01L 122

Patent

active

047872560

ABSTRACT:
A resistance-gauge force transducer comprises a resilient bar having one end adapted to be fixed to a stationary support and the other end subjected to the force to be measured. The bar carries two pairs of resistance gauges symmetrically disposed on both sides of the center of gravity of the bar. The direction of the lines of current of a gauge of one pair is parallel to the bar axis and perpendicular to that of the other gauge of the same pair. The gauges are electrically connected together so as to form a wheatstone bridge delivering a signal which is a function of the force applied to the end of the bar. The two gauges of one pair are adjacent and connected to each other in the wheatstone bridge. This arrangement renders the force transducer insensitive to thermal variations.

REFERENCES:
patent: 3116469 (1963-12-01), Wu
patent: 3949603 (1976-04-01), Laimins
patent: 4657097 (1987-04-01), Griffen

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