Optics: measuring and testing – Angle measuring or angular axial alignment – With screen
Patent
1995-01-20
1997-10-07
Hantis, K.
Optics: measuring and testing
Angle measuring or angular axial alignment
With screen
G01B 1126
Patent
active
056754086
ABSTRACT:
A method and apparatus for measuring the alignment of vehicle wheels includes a light source having two beams projecting on opposite directions. The source is mounted on the wheel approximately perpendicular to the wheel axis. Measuring scales are mounted along the paths of the beams in front of and behind the wheels. When taking measurements, the wheel is rotated 180.degree. after a first measurement and a second reading of the scales is made. The difference between the two sets of readings is used to determine the deviation of the light beam from the perpendicular to the wheel axis and this deviation is compensated for in measuring the wheel alignment. Optical sighting means such as a camera can be used in place of the two beam light source.
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Issa Amin Nassif
Samuelsson Jonas
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