| 摘要 |
PURPOSE:To easily detect the characteristic of a vehicle while running by detecting a torque to actuate a rotating shaft as the rotation phase difference due to a twisting distortion and converting to a horse-power in the manner of multiplying the phase difference by a voltage signal proportional to the number of rotation. CONSTITUTION:The torque T to actuate the rotating shaft 8 is proportional to a twist angle theta of the rotation shaft 8, that is, T=(pid<4>G/32l)theta [where, (d) expresses a diameter (m) of the rotating shaft 8, (l) is a length (m) of the rotating shaft 8 and G is a shearing elastic modulus (N/m<2>)]. The torque T is directly detected by means of measuring this twist angle theta. A rotation angular velocity U of the rotating shaft 8 is given as U=2pif using the number of rotation (f) (rotation/second), so the horse-power (PS) given by the product of the torque T and the rotation angular velocity U, PS=UT is measured by means of detecting a quantities corresponding to the twist angle theta and the number of rotation (f). |
