Abstract: In order to investigate the relationship between the defect size and the corresponding AE parameters, we carried out laboratory tests using a rotating machine and bearing specimens. The rotational speed is 837 rpm and the size of defect diameter of the specimens ranges from 0.25 mm to 1.00 mm, in 0.25 mm steps. AE signals caused from interaction between balls and defects are measured at the rotating shaft using a laser interferometer and also measured on the bearing housing by a piezoelectri...
英字タイトル:
Defects measurement of bearings by non-contact acoustic emission method using a laser interferometer