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Title: High-speed two-camera imaging pyrometer for mapping fireball temperatures

Abstract

A high-speed imaging pyrometer was developed to investigate the behavior of flames and explosive events. The instrument consists of two monochrome high-speed Phantom v7.3 m cameras made by Vision Research Inc. arranged so that one lens assembly collects light for both cameras. The cameras are filtered at 700 or 900 nm with a 10 nm bandpass. The high irradiance produced by blackbody emission combined with variable shutter time and f-stop produces properly exposed images. The wavelengths were chosen with the expected temperatures in mind, and also to avoid any molecular or atomic gas phase emission. Here, the temperatures measured using this pyrometer of exploded TNT charges are presented.

Authors:
 [1];  [2];  [2];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. U.S. Army Research Lab., Aberdeen Proving Ground, MD (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1479068
Report Number(s):
LLNL-JRNL-502191
Journal ID: ISSN 0003-6935; APOPAI; 518179
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Applied Optics
Additional Journal Information:
Journal Volume: 50; Journal Issue: 33; Journal ID: ISSN 0003-6935
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Densmore, John M., Homan, Barrie E., Biss, Matthew M., and McNesby, Kevin L. High-speed two-camera imaging pyrometer for mapping fireball temperatures. United States: N. p., 2011. Web. doi:10.1364/AO.50.006267.
Densmore, John M., Homan, Barrie E., Biss, Matthew M., & McNesby, Kevin L. High-speed two-camera imaging pyrometer for mapping fireball temperatures. United States. doi:10.1364/AO.50.006267.
Densmore, John M., Homan, Barrie E., Biss, Matthew M., and McNesby, Kevin L. Fri . "High-speed two-camera imaging pyrometer for mapping fireball temperatures". United States. doi:10.1364/AO.50.006267. https://www.osti.gov/servlets/purl/1479068.
@article{osti_1479068,
title = {High-speed two-camera imaging pyrometer for mapping fireball temperatures},
author = {Densmore, John M. and Homan, Barrie E. and Biss, Matthew M. and McNesby, Kevin L.},
abstractNote = {A high-speed imaging pyrometer was developed to investigate the behavior of flames and explosive events. The instrument consists of two monochrome high-speed Phantom v7.3 m cameras made by Vision Research Inc. arranged so that one lens assembly collects light for both cameras. The cameras are filtered at 700 or 900 nm with a 10 nm bandpass. The high irradiance produced by blackbody emission combined with variable shutter time and f-stop produces properly exposed images. The wavelengths were chosen with the expected temperatures in mind, and also to avoid any molecular or atomic gas phase emission. Here, the temperatures measured using this pyrometer of exploded TNT charges are presented.},
doi = {10.1364/AO.50.006267},
journal = {Applied Optics},
number = 33,
volume = 50,
place = {United States},
year = {2011},
month = {11}
}

Journal Article:
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