Locating acoustic emission with an amplitude–multiplexed acoustic sensor array based on a modified Mach–Zehnder interferometer

Jianmin Gong, J. M.K. Mac Alpine, Wei Jin, Yanbiao Liao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


We report on an amplitude–division-multiplexed interferometric sensor array for locating acoustic emission. Preliminary experiments were carried out with a modified Mach–Zehnder interferometer consisting of two sensing arms and a reference arm and demonstrated a one–dimensional location accuracy of a few centimeters. The system can be extended for two– and three–dimensional location of acoustic emissions by the addition of one or two more sensing arms, respectively, in the interferometer.
Original languageEnglish
Pages (from-to)6199-6202
Number of pages4
JournalApplied Optics
Issue number34
Publication statusPublished - 1 Dec 2001

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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