Method and apparatus for detecting pits in fruit

Details Method and apparatus for detecting pits in fruit Method and apparatus for detecting pits in fruit

1990-12-12

1991-12-31

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

209577, 250223R, 250340, 250341, 250350, 250351, G01N 2155, G01N 2159

Patent

active

050774778

ABSTRACT:
A method and apparatus for the detection of pits and abnormalities in various stone fruits. The apparatus transmits a first plurality of beams of light (18) across inspection zone (14) and transmits a second plurality of beams of light (22) across inspection zone (14) in a direction opposite to beams of light (18). As a stone fruit (10) passes through inspection zone (14), a first plurality of sensors (32) and a second plurality of sensors (34) detect the variations in the intensity of the transmitted beams of light. The light transmittance and reflectance characteristics of the stone fruit are analyzed to detect the presence of a pit or internal or external abnormality.

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