Detection and removal assessment (DARA) system of standards for sorting systems
AssigneeParaclete Solutions
InventorMark Alpeter
Life of this patent
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Abstract
A system of multiple sets of optical Detection And Removal Assessment (DARA) (or Scannable Detection And Removal Assessment (DARA)) standards embedded with a foreign body of various compositions with known characteristics covering a broad gradation range relevant to end product application performance requirements, the standards being used for measuring the efficiency of an optical sorting system (or scannable sorting system) to remove product defectives from the processing stream. In addition, the DARA system of standards are endowed with specifically designed characteristics which stand out from normal products or materials after the sorter processing is complete to enable easy retrieval and reuse of the standards.
Claims19
A system including sets of optical Detection And Removal Assessment (DARA) standards usable to quantitatively determine a visual defect removal efficiency of an optical product sorting system which sorts out defects from among normal product, the system comprising:
- at least one set of standards, with each individual standard comprising:
- an outer body with a size, shape, color, texture and clarity of normal product being processed through an optical sorting system;
- an artificial defect embedded into a surface of the outer body and having a specific known characteristic;
- and an external coating configured to be indistinguishable from normal products or materials during the optical sorting process, but detectable when subjected to ultra-violet light to create a visual contrast from the normal products or materials being sorted for defects.
A system of plural groups of optical Detection and Removal Assessment (DARA) standards sets used to quantitatively determine a visual defect removal efficiency of an optical sorting system, with each group comprising:
- a plurality of sets of standards of the same size, each standard including:
- a polymer matrix body having approximately the same shape, color, texture and clarity of a product or material to be sorted by an optical sorting system;
- a foreign body having specific dimension embedded into a surface of the polymer matrix;
- and
- an external coating configured to be indistinguishable from normal products or materials during the optical sorting process, and configured to fluoresce with a distinctive color different from the product or material to be sorted by the optical sorting system under ambient light conditions when exposed to an ultra-violet light.
A method of making sets of optical Detection and Removal Assessment (DARA) standards configured to quantitatively determine the visual defect removal efficiency of an optical product sorting system, the method comprising:
- forming bodies having approximately a same shape, color, texture and clarity as a product or material to be sorted by an optical sorting system;
- embedding a foreign element having specific dimension into a surface of each body;
- and
- coating each body with a pigment that is indistinguishable from normal products or materials during the optical sorting process and fluoresces with a distinctive color different from the product or material to be sorted by the optical sorting system when exposed to an ultra-violet light.
Dependencies are inferred from the claim text.