Fiber-optic vector acoustic receiver based on adaptive holographic interferometer
Abstract
A mobile scalar-vector acoustic receiver is proposed, experimentally implemented and investigated. The key components of the receiver are (i) the six-channel fiber-optic coil-type sensor configured as to detect three projections of acoustic intensity vector, (ii) the six-channel optical phase demodulator based on six-channel adaptive holographic interferometer configured with use of dynamic holograms multiplexed in a photorefractive crystal of cadmium telluride and (iii) the signals recording ADC-based system combined with software package for data processing. Field tests of the developed receiver applied for obtaining scalar and vector parameters of acoustic waves generated by a stationary and moving acoustic source in open air and water area are carried out. Experimental results show perceptiveness of use of the fiber-optical adaptive interferometry system for bearing of weak acoustic sources in real conditions.
Cite
@article{arxiv.2112.08944,
title = {Fiber-optic vector acoustic receiver based on adaptive holographic interferometer},
author = {Roman V. Romashko and Dmitrii V. Storozhenko and Mikhail N. Bezruk and Denis A. Bobruyko and Yuri N. Kulchin},
journal= {arXiv preprint arXiv:2112.08944},
year = {2022}
}
Comments
6 pages, 5 figures