In situ surface roughness measurement using a laser scattering method

摘要: Abstract In this paper, the design and development of an optical probe for in situ measurement surface roughness are discussed. Based on light scattering principle, which consists a laser diode, measuring lens linear photodiode array, is designed to capture scattered from test with relatively large angle ϕ (=28°). This capability increases range enhances repeatability results. The coaxial arrangement that incorporates dual-laser beam constant compressed air stream renders proposed system insensitive movement or vibration as well conditions. Tests were conducted workpieces mounted turning machine operates different cutting speeds. Test specimens underwent machining processes finish also studied. results obtained demonstrate feasibility using method.