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Nearfield acoustic holography: I. Theory of generalized holography and the development of NAH

J. Acoust. Soc. Am. Volume 78, Issue 4, pp. 1395-1413 (1985); (19 pages)

J. D. Maynard, E. G. Williams, and Y. Lee

The Pennsylvania State University, Department of Physics, University Park, Pennsylvania 16802

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Because its underlying principles are so fundamental, holography has been studied and applied in many areas of science. Recently, a technique has been developed which takes the maximum advantage of the fundamental principles and extracts much more information from a hologram than is customarily associated with such a measurement. In this paper the fundamental principles of holography are reviewed, and a sound radiation measurement system, called nearfield acoustic holography (NAH), which fully exploits the fundamental principles, is described.

KEYWORDS and PACS

PACS

  • 43.20.Ks

    Standing waves, resonance, normal modes

  • 43.20.Rz

    Steady-state radiation from sources, impedance, radiation patterns, boundary element methods

  • 43.20.Ye

    Measurement methods and instrumentation

ARTICLE DATA

History
Received 18 Dec 1984
Accepted 07 Jun 1985

PUBLICATION DATA

ISSN

0001-4966 (print)  

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