FORCE MEASURING DEVICE Russian patent published in 1998 - IPC

FIELD: high-accuracy electronic balance. SUBSTANCE: device has two rigid supports in the form of angles with mutually parallel vertical and horizontal shelves, three parallel flexible arms with thinned ends which form flexible hinges. Vertical shelves are coupled with parallelogram suspension assembly by means of flexible arms. Resistance strain gauges are formed on thinned ends of middle arm secured in recesses of vertical shelves. Horizontal shelves are arranged with overlapping of adjacent faces of vertical shelves with preset clearance between them. Flexible hinges on middle arm are positioned at larger distance from each other than flexible hinges on extreme arms. Slots are made in vertical shelves from two sides symmetrically about recesses. EFFECT: higher measurement results. 6 cl, 3 dwg