The Development of an Energy-Based Near Field Acoustical Holography Technique

Salt Lake Community College

Nearfield Acoustical Holography (NAH) is an acoustic imaging technique that has been traditionally based on pressure measurements. A NAH technique has been developed that allows for energy density (ED) to be propagated. However, because ED does not satisfy the wave equation, it could not be propagated directly. ED is propagated through the individual propagations of pressure and particle velocity measurements and then combined to form ED on the reconstruction plane.