Notes: Photoelectric Seed Counter for Forestry Research

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Abstract:

Accuracy and speed of handling of experimental seed lots of most pine and possibly other tree species may be greatly increased through the use of a photoelectric seed counting device which utilizes a vibratory parts feeder and a pre-set impulse counter. Accuracies of 96 to 99 percent were consistantly obtained at counting speeds of 150 to 250 seeds per minute for southern and Mexican pine seeds. Seeds of various shapes ranging in width from 0.03 to 0.18 inches can be accommodated by rapid adjustment of track width and counting speed. The speed and accuracy of this device in handling several thousand seed lots during the ast two seasons has fully justified our investment of $300.

Document Type: News

Affiliations: Graduate Student, School of Forestry, North Carolina State Univ., Raleigh

Publication date: September 1, 1966

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