| 摘要 |
<p>The invention comprises a vehicle load sensor apparatus for measuring the load on one or more splindles (20, 30) of a vehicle axle (22) which comprises a vehicle axle spindle, a string means (10) attached to a point (14) adjacent to the vehicle spindle (20), and a means (40, 50) for measuring the change of tension in the string. The tension in the string (10) is measured by inducing a vibration (40) in the string and then measuring the frequency of vibration (50) of the string which is proportional to the square root of the tension in the string. The change of tension is then determined by comparing this measured tension in the string to the tension in the string previously measured under no-load conditions. In a preferred embodiment, both the load and the torque on an axle or spindle may be determined using the disclosed apparatus and method by using a first string (80) attached to a point adjacent to the front (21) of the spindle and a second string (90) attached to a point adjacent to the rear (23) of the spindle and comparing the changes of tension in the front string to the changes of tension in the rear string to determine the torque acting on the end of the axle.</p> |
