抄録
I have proposed a converted Nearfield Acoustic Holography (NAH) method which lightens the workload of measurement at high frequency. In former researches, the theoretical background and the effectiveness of proposing method are explained, and are verified in numerical simulations and experimentations. In former research, the numerical simulations and experimentations are applied to the point sound source(s). However the NAH method is originally based on the plane wave theory. In this research, the experimentations are performed to the plane wave sound field created by vibrated plate. As a result, it is verified that the proposing method can reconstruct almost similar images compared with original NAH method, with lesser workload.
