15 October 2007 Miniature optical turbulence sensor for coastal environmental, homeland security, and military monitoring applications
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Abstract
This paper describes an innovative miniature optical sensor for measuring the turbulence in water columns. The turbulence sensor consists of a single-frequency laser transmitter and a photodetector on which the scattered light from the turbulent water is coherently mixed with a sample of the transmitted beam. This miniature sensor could be used on mobile platforms, such as unmanned underwater vehicles (UUV's), to wake follow platforms, schools of fish or marine mammals or on stationary unattended underwater sensors to monitor natural turbulence in littoral waters. Arrays of fixed unattended sensors could be used to detect the wake of transiting submerged vehicles, scuba divers, marine mammals or large schools of fish. A mobile platform equipped with a miniature turbulence sensor could to be cued to the general location and depth of an underwater target and then the platform could use this small aperture sensor to acquire and follow the wake. This turbulence sensor system could be miniaturized and packaged into a very small volume; approximately the size of a wristwatch.
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Edward M. Carapezza, Edward M. Carapezza, Gabrial Lombardi, Gabrial Lombardi, Jerry Butman, Jerry Butman, Ivar Babb, Ivar Babb, "Miniature optical turbulence sensor for coastal environmental, homeland security, and military monitoring applications", Proc. SPIE 6736, Unmanned/Unattended Sensors and Sensor Networks IV, 67360U (15 October 2007); doi: 10.1117/12.753483; https://doi.org/10.1117/12.753483
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