FORCE MEASURING DEVICE BY RESISTIVE DETECTION WITH DOUBLE BRIDGE OF WHEASTONE

摘要

A Wheatstone double-bridge resistive detection force measuring device comprises at least eight resistive gages (Rx1, Rx2, Rx3, Rx4, Ry1, Ry2, Ry3, Ry4) placed on a deformable membrane (12, 13, 14) and substantially flat and mounted in two different directions.The resistive gauges (Rx1, Rx2, Rx3, Rx4, Ry1, Ry2, Ry3, Ry4) of each of the Wheatstone bridges are respectively disposed on disjoint portions of the membrane (12, 13, 14 ), and two gauges (Rx2, Rx3, Ry1, Ry4) of at least one Wheatstone bridge are placed on a non-deformable zone (13) of the membrane (12, 13, 14).