| 摘要 |
The system for measuring the wheel base of an automobile frame and the transverse and longitudinal offsets of its steered wheels comprises a first device and a second device to be applied by known means to the two automobile frame wheels positioned on the same side, said first device comprising two light emitting diodes (LEDs) located a known distance (d) apart measured in the horizontal plane, and said second device comprising optical angle measurement means arranged to measure the angle ( alpha ) subtended between the light rays emitted by said light emitting diodes. <IMAGE> |
