![]() ![]() Some are digital radiographic systems with image enhancements and interactive tools that make it easier for an operator to locate areas of concern in the image and applying the tools, for example, to measure a region, make a decision about the integrity of the part or assembly being inspected. In each of these classes one finds a range of “machine vision” based products being offered. This includes inspection of tires and metal-formed products – forgings and castings – for internal conditions. In the industrial setting one finds at least six distinct classes of applications of x-ray-based machine vision products.ġ. In the semiconductor industry they are used to inspect packages for internal defects and interconnect problems.Ģ. In the electronic industry they are used to inspect solder joints and multilayer boards for registration issues.ģ. In the food industry they are used to find foreign objects in food products – bones in hamburger patties, or chicken or fish.Ĥ. In packaged products they are used to detect contents in a package or carton as well as foreign objects in containers such as filled baby food jars.ĥ. In the beverage industry they are used to monitor fill height especially in plastic and glass bottles.Ħ. The last class is non-destructive evaluation generically. The result has been a migration from film-based x-ray systems to digital imaging-based systems. Also contributing to today’s implementations has been the advances in solid state detectors, imagers and cameras as well as the underlying computer technology. In the latter case, it is opined the radiologists are the barrier to advances along these lines as they would then perceive theirs as a diminished role. ![]() The net result is that more distinctive x-ray images are created, which lend themselves to automated interpretation at least for industrial application if not medical applications. While vestiges of that era’s technology still exists, the world of x-ray sources has moved forward significantly. At that time they were “state-of-the-art” and their products were widely used in medical and dental x-ray systems. I worked for Machlett Labs and was engaged in production engineering activities for their x-ray tube product line. ![]() Whenever I write about x-ray-based systems I fondly remember my first job out of college. ![]()
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