Seed counting and frequency measurement apparatus and method
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United States of America Patent
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Sep 20, 2011
Grant Date -
Oct 30, 2008
app pub date -
Feb 15, 2006
filing date -
Feb 17, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved device for measuring the count and frequency of seeds in a stream of seeds is described. The device is useful for measuring the frequency and accuracy of seed planting devices. A seed counting system can include an imaging region, an image sensing device, and a lens between the imaging region and the image sensing device. An optical distance extender between the imaging region and the lens, creates an effective optical distance between the imaging region and the lens that is substantially greater than the physical distance between the imaging region and the lens, thereby providing a substantial depth of field.
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