Patent ID: 6837116

Claim:
Device for the measurement of the torsion torque applied to a rotating shaft, said device comprising: a deformable test body having first and second ends; first and second means for the generation of magnetic pulses, the first means is connected with the test body in the vicinity of the first end thereof and the second means is connected with the test body in the vicinity of the second end thereof; a first analog magnetic sensor which is fixed with respect to the test body is arranged opposite to and at gap distance from the first means for generation of magnetic pulses; said first analog magnetic sensor configured to deliver a first analog signal S 1 and a second analog signal C 1 in quadrature; a second analog magnetic sensor which is fixed with respect to the test body is arranged opposite to and at gap distance from the second means for the generation of magnetic pulses, said second analog magnetic sensor configured to deliver a third analog signal S 2 and a fourth analog signal C 2 in quadrature; and an electronic treatment device configured to form from input analog signals A, B, C, D which are functions of the signals S 1 , C 1 , S 2 and C 2 , the output signal F(A, B, C, D)=((B*C)−(A*D))/((B*D)+(A*C)) which is a function of the torque applied to said shaft.