Pit detector and method

Details Pit detector and method Pit detector and method

1992-09-10

1994-09-06

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503411, 2503591, 250223R, G01N 3302, G01N 2135

Patent

active

053450817

ABSTRACT:
A method and apparatus for detecting the presence of an impurity within a substantially spherical object, such as a pit within a piece of stone fruit as it passes through an inspection zone. An infrared point source light emitting diode positioned on one side of the inspection zone transmits a single light beam across the inspection zone. A linear CCD array for generating a signal that is proportional to the intensity of the light transmitted through the fruit as the fruit passes through the inspection zone is provided and an optical slit for collimating the light beam on the CCD array are provided. An infrared filter is positioned between the lens and the CCD array. Thus, as the fruit passes through the inspection zone and is illuminated by the infrared light source and the intensity of the light transmitted through the fruit is received by the CCD array, a two-dimensional analyzable bit map representative of the cross-section of the object's density is produced.

REFERENCES:
patent: 3275136 (1966-09-01), Allen et al.
patent: 3366236 (1968-01-01), Breazeale
patent: 4146135 (1979-03-01), Sarkar et al.
patent: 4146136 (1979-03-01), Ross et al.
patent: 4511046 (1985-04-01), Walsh et al.
patent: 4666045 (1987-05-01), Gillespie et al.
patent: 4901861 (1990-02-01), Cicchelli
patent: 4988875 (1991-01-01), Ortiz et al.
patent: 5077477 (1991-12-01), Stroman et al.
Potential Methods for Detecting Pits in Tart Cherries E. J. Timm, P. V. Gilliland, G. K. Brown, H. A. Affeldt, Jr. Applied Engineering in Agriculture (vol. 7, No. 1, pp. 103-109, 1991).

Affiliated with

Also associated with

Rating

Pit detector and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pit detector and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pit detector and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1331092