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المستخلص
Automatic quality monitoring and inspection devices, used to
observe the quality of in-process workpieces in an automated
manufacturing system are essential for effective production. The quality
monitoring devices are used to determine the acceptance or rejection of a
workpiece or a specific production lot before workpieces are fed into the
next process. They are also used to monitor the positions of fixtures and
the conditions of cutting tools. In addition, they can be integrated into a
feedback control system to influence the manufacturing processes directly.
There are many automated inspection and measurement systems currently
available in industry such as automatic gagging and sorting, computersupported
coordinate measuring systems, and automated visual inspection
systems. Among them, automated visual inspection systems are the noncontact
systems; and they are among the most versatile inspection systems
as well. These visual systems also have a great potential for the future
development of automated quality control systems. Visual inspection is
one of the hardest industrial tasks to be automated, because it requires
perception and judgment qualities of the human eye-brain system.