Patent ID: 7886620

Claim:
A method of measuring the torque applied by a drive shaft to a driven shaft along a common axis of rotation, comprising: coupling said shafts together by fixing at least one torque sensor plate to one of said shafts at a first fixation point eccentric with respect to said common axis of rotation, and to the other one of said shafts at a second fixation point spaced from said first fixation point; measuring the deformation of said torque sensor plate in a section thereof between said first and second fixation points; and utilizing said measured deformation to produce a measurement of said torque; said second fixation point being spaced from said first fixation point along a tangential line substantially perpendicular to a radial line from said first fixation point to said axis of rotation, such that the deformed section of the torque sensor plate between said first and second fixation points is expanded or contracted, depending on the direction of rotation of said drive shaft.