NONCONTACT-TYPE EGG FRESHNESS INDEX INSPECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a noncontact-type egg freshness index inspection device, capable of inspecting the freshness index of an inspection object egg with high accuracy in a short time, and of acquiring high-reliability inspection result.;SOLUTION: Light reception intensity (for example, transmittance of light or the like) which is weaker than the light reception intensity of light measured in the state where the inspection object egg E does not exist on an optical path of floodlighting/receiving units 3, 4 is set as target light reception intensity A. A measuring stand 1 is moved in the horizontal direction, and it is determined whether light reception intensity B of light at one measuring spot is equal to the target light reception intensity A. If they are unequal, the floodlighting/receiving units 3, 4 are moved vertically, to a position where the light reception intensity B becomes equal to the target light reception intensity A, and the positional information of an optical axis on the position, where the light reception intensity B becomes equal to the target light reception intensity A, is detected. The same process is also repeated on measuring spots thereafter, and the contour shape of the inspection object egg is measured, based on the position information of the optical axis acquired from each process, and the freshness index of the inspection object egg E is calculated from the contour shape measured.;COPYRIGHT: (C)2008,JPO&INPIT