| 摘要 |
A measuring apparatus for the alignment of automobile wheels has six angle pickups of which four are fixed to the wheels lined up with their axes, while two further pickups are fixed to the front wheels by forwardly running support arms. The pickups are more specially electrical units giving electrical ready-for-processing outputs, which pickups are joined together by springs or the like running between one unit and the next one so that two such joined-up pickups have equal and opposite effects on each other. By processing the signals from the pickups readings are produced for total tracking angle of the front wheels, total tracking angle of the rear wheels, single-wheel tracking angle of the front wheels in relation to the geometrical driving axis, and single-wheel tracking angle of the rear wheels in relation to the axis of symmetry, as well as for the geometrical driving axis, the wheel offset angle of the front wheels with respect to the geometrical driving axis, and the wheel offset angle of the front wheels with respect to the axis of symmetry.
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