Narrow bandwidth detection of vibration signature using fiber lasers
Abstract
The various technologies presented herein relate to extracting a portion of each pulse in a series of pulses reflected from a target to facilitate determination of a Doppler-shifted frequency for each pulse and, subsequently, a vibration frequency for the series of pulses. Each pulse can have a square-wave configuration, whereby each pulse can be time-gated to facilitate discarding the leading edge and the trailing edge (and associated non-linear effects) of each pulse and accordingly, capture of the central portion of the pulse from which the Doppler-shifted frequency, and ultimately, the vibration frequency of the target can be determined. Determination of the vibration velocity facilitates identification of the target being in a state of motion. The plurality of pulses can be formed from a laser beam (e.g., a continuous wave), the laser beam having a narrow bandwidth.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1440531
- Patent Number(s):
- 9964431
- Application Number:
- 14/541,609
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Nov 14
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Moore, Sean, and Soh, Daniel B.S. Narrow bandwidth detection of vibration signature using fiber lasers. United States: N. p., 2018.
Web.
Moore, Sean, & Soh, Daniel B.S. Narrow bandwidth detection of vibration signature using fiber lasers. United States.
Moore, Sean, and Soh, Daniel B.S. Tue .
"Narrow bandwidth detection of vibration signature using fiber lasers". United States. https://www.osti.gov/servlets/purl/1440531.
@article{osti_1440531,
title = {Narrow bandwidth detection of vibration signature using fiber lasers},
author = {Moore, Sean and Soh, Daniel B.S.},
abstractNote = {The various technologies presented herein relate to extracting a portion of each pulse in a series of pulses reflected from a target to facilitate determination of a Doppler-shifted frequency for each pulse and, subsequently, a vibration frequency for the series of pulses. Each pulse can have a square-wave configuration, whereby each pulse can be time-gated to facilitate discarding the leading edge and the trailing edge (and associated non-linear effects) of each pulse and accordingly, capture of the central portion of the pulse from which the Doppler-shifted frequency, and ultimately, the vibration frequency of the target can be determined. Determination of the vibration velocity facilitates identification of the target being in a state of motion. The plurality of pulses can be formed from a laser beam (e.g., a continuous wave), the laser beam having a narrow bandwidth.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 08 00:00:00 EDT 2018},
month = {Tue May 08 00:00:00 EDT 2018}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Apparatus for modulating a high energy beam
patent, March 1976
- Engel, Simon L.; McFall, Robert Alan
- US Patent Document 3,942,878
Random pulse burst range-resolved doppler laser radar
patent, April 1997
- Paranto, Joseph N.; Liskow, Dean H. S.; Minden, Monica
- US Patent Document 5,621,514
Fiber-based ladar transceiver for range/doppler imaging with frequency comb generator
patent, November 1998
- Phillips, Mark Wayne; Suni, Paul J. M.; Thomson, J. Alex
- US Patent Document 5,835,199
Smart controller for laser peening
patent, February 2001
- O. Loughlin, Mark E.; Dulaney, Jeff L.
- US Patent Document 6,191,385
Method and apparatus for remote sensing of objects utilizing radiation speckle
patent, September 2012
- Shirley, Lyle
- US Patent Document 8,265,375
Method and Apparatus for Range Resolved Laser Doppler Vibrometry
patent-application, May 2013
- Klotz, Matthew J.; Bulot, Jean-Paul
- US Patent Document 13/285821; 20130104661
Stable passively Q-switched and gain-switched Yb-doped all-fiber laser based on a dual-cavity with fiber Bragg gratings
journal, January 2013
- Jin, Dongchen; Sun, Ruoyu; Shi, Hongxing
- Optics Express, Vol. 21, Issue 22, Article No. 26027
Applications for remote laser vibration sensing
conference, December 2008
- Ebert, Reinhard; Lutzmann, Peter; Hebel, Marcus
- 2008 IEEE PhotonicsGlobal@Singapore
Vibration imagery of remote objects
conference, December 2002
- Ebert, Reinhard R.; Lutzmann, Peter; Ricklin, Jennifer C.
- International Symposium on Optical Science and Technology
Fibre laser Doppler vibrometry system for target recognition
conference, February 2005
- Mathers, Michael P.; Mickan, Samuel P.; Fabian, Werner
- Smart Materials, Nano-, and Micro-Smart Systems