Reciprocity calibration of acoustic emission transducers in Rayleigh-wave and longitudinal-wave sound fields
作者:
Hajime Hatano,
Tetsuo Watanabe,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1997)
卷期:
Volume 101,
issue 3
页码: 1450-1455
ISSN:0001-4966
年代: 1997
DOI:10.1121/1.418170
出版商: Acoustical Society of America
关键词: TRANSDUCERS;CALIBRATION;ACOUSTIC EMISSION TESTING;SOUND WAVES;INTERFERENCE;FREQUENCY DEPENDENCE
数据来源: AIP
摘要:
A new system was developed for the reciprocity calibration of acoustic emission transducers in Rayleigh-wave and longitudinal-wave sound fields. In order to reduce interference from spurious waves due to reflections and mode conversions, a large cylindrical block of forged steel was prepared for the transfer medium, and direct and spurious waves were discriminated between on the basis of their arrival times. Frequency characteristics of velocity sensitivity to both the Rayleigh wave and longitudinal wave were determined in the range of 50 kHz–1 MHz by means of electrical measurements without the use of mechanical sound sources or reference transducers.
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