| 摘要 |
Twisting torque measuring unit applied to a steering column (2) of a vehicle, includes a test body (1), deformable under the action of torque applied to the column as well as first and second magnetic pulse generators (5,6). Analogue magnetic sensors (7,8) are fixed with respect to the column and placed a distance from the air gap of the generator (5,6). The sensors produce analogue signals S1,S2 and analogue signals C1,C2 in quadrature. An electronic processor (9) produces an output signal (F(A,B,C,D) = ((B x C) - (A x D)) ./ ((B x D) + (A x C)); from signals A,B,C,D which are functions of signals S1,C1,S2,C2. The output signal is a function of the torque exerted on the steering column. The signals A,B,C,D are respectively equal to the signals S1,S2,C,C2. Also includes means for adjusting the gain (G) on signals S1 and C1 or S2 and C2 as well as electronic systems to deliver the output signals . |
