MISSING TOOTH DETECTION DEVICE FOR INTERMITTENT TOOTH-SHAPED BODY

摘要

PURPOSE: To prevent the sensor of a missing tooth detection device from being damaged and to surely detect each missing tooth of an intermittent tooth-shaped body as early as possible. ;CONSTITUTION: An emitter 20 emitting laser beam from one side and a receiver 30 receiving laser beam at the other side are set face to face with a specified distance spaced while a rotary blade 10 is being held, a laser transmitting condition is detected as a pulse signal by a signal processing system, and a signal for each missing blade out of signals is outputted based on a range where erroneous operating areas due to blade runout are excluded.;COPYRIGHT: (C)1994,JPO&Japio