Noncontact gage system utilizing reflected light

摘要: Methods and apparatus are provided for determining spatial characteristics of an object such as the size, shape relative locations selected portions object, by utilizing a noncontact gage system that directs light from source colliminated laser beam to illuminate small area on object. Light is reflected illuminated focused along path intercepted sensitive detector. The size spot formed detector function location reflecting surface portion An electrical signal detector, with having characteristic which representative feature hence also By various features may be deduced. In preferred practice, electronic processing utilized sample at rapid but regular or timed intervals. Data stored and/or analyzed incident moved across cause move like probe interrogate object; alternatively, beam. A microcomputer used control operation, compare sensed values predetermined ascertain whether conform tolerances, determine what additional machining required, monitor needed machining.