In this paper, the optical measuring method to detect a distance between a tool and a workpiece is described. This method is based on the intensity modulation and the corresponding measurement system consisted of a laserdiode as an optical source and ...
In this paper, the optical measuring method to detect a distance between a tool and a workpiece is described. This method is based on the intensity modulation and the corresponding measurement system consisted of a laserdiode as an optical source and a photodiode as an optical detector. This paper especially proposes that suitable beam shape radiated from the optical source is line shape due to its nearly constant profile of intensity distribution in direction of line, and the two-element photo diode is useful to detect the machine origin a machine tool.