Method and apparatus for inspecting engine head valve...

Details Method and apparatus for inspecting engine head valve... Method and apparatus for inspecting engine head valve...

H - Electricity

04

N

350/32

H04N 3/18 (2006.01) G01M 15/00 (2006.01) G06T 7/00 (2006.01)

Patent

CA 1179426

D-4,398 C-3258 METHOD AND APPARATUS FOR INSPECTING ENGINE HEAD VALVE RETAINER ASSEMBLIES FOR MISSING KEYS Abstract of the Disclosure A computer vision system for inspecting engine heads during assembly for missing valve spring assembly keys comprises a solid-state camera for taking pictures of the valve spring assemblies and providing picture data upon command to a computer. The computer responds to a position encoder which relates the position of the engine head to the camera. Once the data is stored in the computer, it is analyzed to determine the center of the digitized image of the valve spring assembly and an intensity profile at the expected location of the keys relative to the center of the assembly is utilized to determine whether a key is missing.

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