In this paper, the nearfield acoustic holography (NAH) imaging system for airborne sound constructed in our own laboratory is presented. Using the system we have measured the mode of vibration and radiation field of a...In this paper, the nearfield acoustic holography (NAH) imaging system for airborne sound constructed in our own laboratory is presented. Using the system we have measured the mode of vibration and radiation field of a single loudspeaker, two loudspeakers and an unbaffled disk, and gotten interesting results. These results tally with theoretical analysis and computer simulations, and indicate that NAH can be used to research on the relation between the mode of vibration and its radiation field as an effective means.展开更多
文摘In this paper, the nearfield acoustic holography (NAH) imaging system for airborne sound constructed in our own laboratory is presented. Using the system we have measured the mode of vibration and radiation field of a single loudspeaker, two loudspeakers and an unbaffled disk, and gotten interesting results. These results tally with theoretical analysis and computer simulations, and indicate that NAH can be used to research on the relation between the mode of vibration and its radiation field as an effective means.
