PELLET DETECTING METHOD, PELLET DETECTING DEVICE AND PELLET ABSTRACTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide stable detection of pellets. SOLUTION: In a pellet position detecting device 20, positions of the pellets 2 are detected by irradiating beam light (laser light) on the pellets 2 on a seat 1, receiving reflected light of the beam light, and recognizing reduction positions of received light quantity in each position of a direction intersecting the pellets 2 as outer edge positions of the pellets 2.