| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for the detection of a fracture, in which the fracture in the shape of a rectangular parallelepiped-shaped object to be detected such as Tofu, Konnyaku or the like is detected mechanically before the object to be detected is housed in a package container. SOLUTION: An object T to be detected, which is conveyed to a detecting position by a conveyance means 11 and a conveyance means 12, is irradiated with light so as to obtain a luminous flux which aims the upper surface of the object T to be detected from the oblique upper part in a straight line to a direction at right angles to its conveyance direction. The line shape of the luminous flux is grasped two-dimentionally from the upper part of the detecting position. The shape is compared with the two-dimensional shape of a luminous flux obtained at a time when an object T to be detected in normal shape is irradiated,. As a result, a fracture in the shape of the object T to be detected is detected. |
