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Title: A Data-Driven Approach for Determining Time of Initial Movement in Shock Experiments Using Photonic Doppler Velocimetry

Conference ·
DOI:https://doi.org/10.1063/1.4971752· OSTI ID:1240144
 [1];  [2];  [3];  [2];  [1];  [2];  [3];  [2];  [4];  [2];  [4];  [2]
  1. National Security Technologies, LLC. (NSTec), Mercury, NV (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Special Technologies Lab. (STL), Santa Barbara, CA (United States)
+ Show Author Affiliations

Photonic Doppler velocimetry is an interferometric technique for measuring the beat frequency of a moving surface, from which the calculated velocity profile of the surface can be used to describe the physical changes the material undergoes after high-impact shock. Such a technique may also be used to characterize the performance of small detonators and determine the time at which the surface began moving. In this work, we develop a semi-automated technique for extracting the time of initial movement from a normalized lineout of the power spectrogram near the o set frequency of each probe. We characterize the response bias of this method and compare with the time of initial movement obtained by hand calculation of the raw voltage data. Results are shown on data from shock experiments such as gas gun setups and explosives-driven flyer plates.

Research Organization:
Nevada Test Site (NTS), Mercury, NV (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
AC52-06NA25946
OSTI ID:
1240144
Report Number(s):
DOE/NV/25946-2521
Resource Relation:
Conference: American Physics Society's Conference on Shock Comprehension of Condensed Matter
Country of Publication:
United States
Language:
English

References (6)

Velocimetry using heterodyne techniques
  • Strand, Oliver T.; Berzins, Leon V.; Goosman, David R.
  • 26th International Congress on High-Speed Photography and Photonics, SPIE Proceedings https://doi.org/10.1117/12.567579
conference March 2005
Measurement of an explosively driven hemispherical shell using 96 points of optical velocimetry journal May 2014
Survey of Optical Velocimetry Experiments ¿ Applications of PDV, A Heterodyne Velocimeter
  • Holtkamp, David B.
  • 2006 IEEE International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS), 2006 IEEE International Conference on Magagauss Magnetic Field Generation and Related Topics https://doi.org/10.1109/MEGAGUSS.2006.4530668
conference November 2006
An Introduction to Logistic Regression Analysis and Reporting journal September 2002
New developments in photon Doppler velocimetry journal May 2014
Compact system for high-speed velocimetry using heterodyne techniques journal August 2006

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
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