System and method for inspecting and sorting particles and process for qualifying the same with seed particles
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United States of America Patent
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Dec 3, 2013
Grant Date -
Jun 28, 2012
app pub date -
Dec 22, 2010
filing date -
Dec 22, 2010
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Abstract
A method for qualifying an automated process for inspecting and sorting particles through the production and use of seed particles is disclosed. In one embodiment, seed particles are produced by forming a conformal surface layer on a plurality of particles, thereby imparting them with at least one property whose value or range of values is the same as or about the same as a value or range of values of a corresponding property of undesirable particles. By introducing a predetermined quantity of seed particles, their detection and removal by the automated sorting system can be used to periodically calibrate and qualify the sorting system without interrupting the manufacturing operations or introducing actual undesirable particles into the process stream. The production and use of seed particles to qualify an automated sorting system is particularly well-suited for use with Ti sponge sorting operations.
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