Modelling of incident light occlusion during gear measuring based on the line-structured laser sensor and analysis on its influence factors

Line-structured laser sensors used in gear measuring provide a new way to acquire the perfect 3-D information of complicated tooth flank with modification. This method leads series problems, such as incident light occlusion, multiple reflection, system calibration and so on. The occlusion poses severe problem on integrity data acquired by line-structured sensors. To understand influence during cylindrical improve efficiency measurement, this article analyzes depth. According position relation between line-structure sensor gear, projection theory is illustrate process adjacent teeth model built up. Four experiments are conducted verify validity model. applies different parameters. modification zone could be ignored. On basis model, offset setting angle thoroughly discussed, which gives guide control route planning acquiring flank.