抄録
This paper describes simulation results of positioning the tool edge top in 3-directions by using an optical sensor. In the optical sensor, a laser beam from a laser diode is focused to generate a small beam spot with a micrometer-order diameter at the beam waist and then received by a photo-detector. When the tool edge is brought into the light, the light intensity detected by the photodiode will be changed depending on the position of the tool edge in the light. Computer simulations were carried out to confirm the relationship between the photodiode output and the position of the tool edge top.
