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Force and Torque Measurement Bending Beam - Half Bridge         In this configuration, two axial gages are used. The gage on the lower surface is located precisely under the gage on the top surface and they measure bending strains that are of equal magnitudes but of opposite signs. Any resistance changes in the active gages resulting from strains of like sign produced by axial loads will be cancelled because the two active gages are in adjacent arms of the Wheatstone bridge. Likewise, resistance changes of thermal origins will be negated when both gages and the specimen experience the same changes in temperature. And because the strains produced by bending loads are of equal magnitude but opposite sign, the bridge output is not only linear but is nominally double that produced by a single active gage under the same conditions. Page 4 of 10