Fiber-optic hydrophone using a cylindrical Helmholtz resonator as a mechanical anti-aliasing filter.
作者： Zefeng Wang , Yongming Hu , Zhou Meng , Ming Ni
DOI: 10.1364/OL.33.000037
关键词:
摘要: Two Michelson interferometric fiber-optic hydrophones that use panda polarization-maintaining fibers and devices have been constructed tested. The low-frequency acoustic sensitivities of both are −159 dB re 1 rad/μPa. One the tested has a small cylindrical Helmholtz resonator break point near 1200 Hz measured roll-off approximately 50 dB/octave, it is hydrostatic-pressure-insensitive design. This hydrophone prototype device for class sensors can be used to eliminate aliasing in future sonar systems. To our knowledge, this first time such reported.
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harvard.edu参考文章(9)
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