Translator Disclaimer
Paper
30 October 2001 Amplitude multiplexing of Mach-Zehnder interferometer array and its application to locating acoustic emission
Author Affiliations +
Proceedings Volume 4596, Advanced Photonic Sensors and Applications II; (2001) https://doi.org/10.1117/12.447365
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore
Abstract
We report an amplitude division multiplexed interferometric sensor array for locating acoustic emission. The interferometer is composed of 3 arms, the two sensing arms have different interference amplitude with the reference arm, so we can judge whether a sensor receives sound or not from the composite interference amplitude. For single sound source, the sound-receiving delay of two sensors can be obtained from the time when the interference amplitude changes, and the sound source location relative to the sensors can also be achieved in a 1-D system. Preliminary experiments were carried out and demonstrated a one-dimensional (1-D) location accuracy of better than 1cm. The system can be extended for 2-D and 3-D location of acoustic emissions by adding one or two more sensing arms, respectively, in the interferometer.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianmin Gong, J. M. K. MacAlpine, Wei Jin, and Yanbiao Liao "Amplitude multiplexing of Mach-Zehnder interferometer array and its application to locating acoustic emission", Proc. SPIE 4596, Advanced Photonic Sensors and Applications II, (30 October 2001); https://doi.org/10.1117/12.447365
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top