Method and apparatus for discriminating between stalks and leave

Details Method and apparatus for discriminating between stalks and leave Method and apparatus for discriminating between stalks and leave

1988-12-22

1989-11-28

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250349, 56 102, A01D 7500, G01N 2159

Patent

active

048839655

ABSTRACT:
A row crop harvesting machine is provided with first and second infra-red transmitters and first and second infra-red receptors for sensing the infra-red beams emitted by the transmitters. The transmitters and receptors are mounted on two adjacent crop row separators of a harvesting machine header and are positioned such that the beams intersect in a region which defines the alignment of the harvesting machine relative to a row of crop stalks. The intensities of the beams and the sensitivities of the receptors are such that the receptors may sense the beams through leaves but not through stalks.

REFERENCES:
patent: 3583514 (1971-06-01), Taylor
patent: 4077488 (1978-03-01), Bennett, Jr. et al.
patent: 4528804 (1985-07-01), Williams

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