Intelligent sensor method and apparatus for an optical wheel ali

Optics: measuring and testing – Angle measuring or angular axial alignment – Wheel alignment with photodetection

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Details

3320316, 33288, 348136, G01B 1126, G01B 524, H04N 718

Patent

active

057318700

ABSTRACT:
A sensor method and apparatus for an optical wheel alignment machine utilizes one or more light sources, such as lasers, to project a laser line or other shaped light onto various locations about the sidewall of a tire undergoing measurement. The sensor includes a video camera or other light responsive receiver and a optical system that combines the reflected laser lines into a single image that is received by the camera. The optical system also rotates one or more of the reflected laser lines so that all of the reflected portions have the same general orientation upon entering the camera. The camera outputs a video data stream that is indicative of the image. The sensor has an electronic circuit that analyzes this video data stream in real time to determine the location in the image of a preselected feature of each of the laser lines. The circuit then outputs coordinate data indicative of the location of this feature.

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