发明名称 PROCEDURE FOR THE DETECTION OF ACOUSTIC SOURCES AND APPARATUS FOR SURVEILLANCE BY ACOUSTIC EMISSIONS
摘要 1. A method for detecting and localizing an acoustic source (2 or 12) in a one-dimensional or bidimensional industrial structure (1, 9), the acoustic source being a pinpoint source or of small extent, accidental of fortuituous in origin and emitting a wave which admits in the structure at least two wave modes, said wave being emitted and said two modes being propagated at different speeds, characterized in that the localization of the acoustic source is achieved by mode distinction through the evaluation of the detection time difference (262) between said two distinct modes.
申请公布号 DE3173039(D1) 申请公布日期 1986.01.02
申请号 DE19813173039 申请日期 1981.12.28
申请人 HBS 发明人 AUDENARD, BERNARD;MARINI, JEAN
分类号 G01S5/18;G01H1/00;G01H3/00;G01S5/22;(IPC1-7):G01H1/00 主分类号 G01S5/18
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