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

被引:43
|
作者
Densmore, John M. [1 ]
Homan, Barrie E. [2 ]
Biss, Matthew M. [2 ]
McNesby, Kevin L. [2 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[2] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA
关键词
D O I
10.1364/AO.50.006267
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. Temperatures measured using this pyrometer of exploded TNT charges are presented.
引用
收藏
页码:6267 / 6271
页数:5
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