RCP
RCP Step 3
27
Theory of Operation
We do this by placing the fixture on the left runway so that both targets are in the visual field of the left cam
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era. If we measure with one camera, then measure with a different camera and get the same values we can
be sure the fixture has remained stable and our RCP is valid.
If the final check reveals the fixture has changed dimensions during the process we are given notice and
must repeat the RCP procedure from the beginning. Because the Camera Beam is rigid, the cameras are
hard-mounted to the beam. And the structure is away from the action, the system does not require periodic
maintenance calibration. The only way the accuracy of the RCP can be affected is if one camera moves with
respect to the other – not likely to happen in every day usage.
MODELING THE VEHICLE IN 3-DIMENSIONAL SPACE
After Positioning is completed, and the program is able to relate one side of the vehicle to the other, the soft-
ware knows 4 distinct points that create a plane in space that are part of the vehicle. It takes these points and
creates a 3-dimensional model of the vehicle plane. From this model, all alignment angles, caster, SAI, cam-
ber, and toe are referenced to the vehicle plane. This is in contrast to conventional measuring-head aligners
that use gravity or the rack surface as a reference. For this reason, the 3D Aligner does not rely on a level lift.
In reality, the aligner does not require gravity to measure, but our vehicle’s physical state will change radically
in a weightless environment.
Содержание UHR Ultra
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Страница 16: ...14 Theory of Operation Figure 2 Top Field of View Figure1 Side Field of View ...
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Страница 84: ...05 07 2014 2014 Impreso en U S A 309 Exchange Avenue Conway AR 72032 TEEWA546P4 Rev C ...