Method and apparatus for measuring dimensions of objects on a conveyor
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United States of America Patent
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Oct 24, 2000
Issued Date -
N/A
app pub date -
Nov 3, 1999
filing date -
Jul 26, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for measuring the length, width, and height of rectangular solid objects moving on a conveyor. The apparatus includes a light curtain, two laser triangulation range finders, and a pulse tachometer mounted on a frame around a conveyor. As an object is conveyed through the frame, measurements from each of the sensors are correlated by a digital computer to estimate the length, width and height of the object. The method and apparatus does not require a break in the surface of the conveyor, and is insensitive to object placement and orientation on the conveyor.
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