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Title: UV laser based stand-off acoustic sensor

Abstract

A system for aerially surveying an area where a plane may have crashed in water and locating pings from the plane's black box using a laser on an aerial platform that produces laser pulses; using a launch telescope to direct the laser pulses to the water producing scattering from the laser pulses and a continuous stream of backscatter; using a receiving telescope to collect the continuous stream of backscatter; using an interferometer operatively connected to the receiving telescope to produce two outputs, wherein one output is the continuous stream of backscatter, and wherein the other output is a delayed replica of the first output; and using a data collection and analysis unit operatively connected to the interferometer to produce a measurement of the sound.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1525023
Patent Number(s):
10,222,253
Application Number:
15/175,423
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016-06-07
Country of Publication:
United States
Language:
English

Citation Formats

Dawson, Jay W., Allen, Graham S., Carter, Michael R., Heebner, John E., Messerly, Michael J., Pax, Paul H., and Rubenchik, Alexander M. UV laser based stand-off acoustic sensor. United States: N. p., 2019. Web.
Dawson, Jay W., Allen, Graham S., Carter, Michael R., Heebner, John E., Messerly, Michael J., Pax, Paul H., & Rubenchik, Alexander M. UV laser based stand-off acoustic sensor. United States.
Dawson, Jay W., Allen, Graham S., Carter, Michael R., Heebner, John E., Messerly, Michael J., Pax, Paul H., and Rubenchik, Alexander M. Tue . "UV laser based stand-off acoustic sensor". United States. https://www.osti.gov/servlets/purl/1525023.
@article{osti_1525023,
title = {UV laser based stand-off acoustic sensor},
author = {Dawson, Jay W. and Allen, Graham S. and Carter, Michael R. and Heebner, John E. and Messerly, Michael J. and Pax, Paul H. and Rubenchik, Alexander M.},
abstractNote = {A system for aerially surveying an area where a plane may have crashed in water and locating pings from the plane's black box using a laser on an aerial platform that produces laser pulses; using a launch telescope to direct the laser pulses to the water producing scattering from the laser pulses and a continuous stream of backscatter; using a receiving telescope to collect the continuous stream of backscatter; using an interferometer operatively connected to the receiving telescope to produce two outputs, wherein one output is the continuous stream of backscatter, and wherein the other output is a delayed replica of the first output; and using a data collection and analysis unit operatively connected to the interferometer to produce a measurement of the sound.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

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Works referenced in this record:

Sound detection
patent, May 2004


Method and apparatus for detecting submarines
patent, October 2007


Airborne laser-acoustic mine detection system
patent, July 2012


Laser-based method of detecting underwater sound through an ice layer
patent, December 2013