الفهرس 
Visual Inspection Systems
The important characteristics that must be satisfied in mostOnly 14 pages are availabe for public view
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Abstract
Inspections and measurements that were done by human were converted to machines, saving labor hours. The application of automated visual inspection systems allowed companies to produce higher quality goods at higher speeds, with a lower cost and without exposing workers to boring, repetitive and sometimes dangerous inspection tasks. br Intelligent visual inspection is used to verify the correctness or completeness of manufacturing operations, and it is usually used to supply pass / fail information. It is very reliably with minimal down-time, and it can significantly reduce the labor required to produce a high – quality product. br One method of inspection involves comparing a product with a reference model to see if it meets the specifications of the model. This method sometimes called explicit inspection is characterized by the fact that the inspection system knows what it is looking for and it typically only looks at those features that are expected and represented in the model. br Troubleshooting of faulty electronic Printed Circuit Board (PCB) is mainly accomplished by the analysis of the electrical signature, where a test signal pattern is applied at the inputs of the electronic circuits in the PCB and the output signals are acquired using a data acquisition system. Then the acquired test signals are compared with correct ones to localize the fault and determine the faulty component. The method of electrical signature is accurate but tedious. In order to save time and effort, one can use the thermal signature in the form of an infrared picture for the electronic PCB under normal operating conditions. Because of energy consumption of the different electrical circuit components, they become hotter and search some steady temperatures. If any component is defective, its power consumption will be changed and consequently its temperature. One can measure the temperature distribution using infrared.