Enregistreur aulomatique de lignes d'ägal däphasage
An automatic apparatus for tracing curves of equal phase change in a plane section of a three-dimensional sound field is described. This is applied to the sound field of a loud-speaker and to the effects of interposed obstacles. The sound waves so observed have peculiar shapes; they
appear as lenticular chaplets, rather like those obtained in photo-elastic studies.
Document Type: Research Article
Publication date: 01 January 1956
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