| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily specify a generation position of an abnormal sound in a diagnosis object including depth direction position of the diagnosis object. <P>SOLUTION: An abnormal sound diagnostic apparatus 100 includes an imaging device 20 for imaging a diagnosis object 70, a sound collection device 10 configured by arranging microphones 11 on an annular frame 12 at an equal interval and an information processing device 50. The information processing device 50 executes processing for setting a plurality of virtual screens 80 which are approximately vertical to a center axis of a visual line of the imaging device 20 and parallel with each other in a space from the front side of the sound collection device 10 up to the rear side of the diagnosis object 70, processing for calculating sound pressure levels on respective points of respective virtual screens 80 and generating a sound pressure map and processing for extracting a sound pressure abnormal noise area and superposing and displaying the sound pressure map and the sound pressure abnormal area on an appearance image of the diagnosis object 70 imaged by the imaging device 20. <P>COPYRIGHT: (C)2013,JPO&INPIT |
