Chinese Journal of Lasers, Volume. 41, Issue 1, 108007(2014)
Simultaneous Line Imaging and Plane Framing Imaging Velocity Interferometer for Shock Physics
A simultaneous line imaging and plane framing imaging velocity interferometer system for any reflector (VISAR) for spatial and temporal resolution measurement of velocity field of laser driven flyer is developed. Different from the conventional point VISAR, imaging VISAR uses streak camera and framing camera to record the movement of comb fringe, and provides a one-dimensional velocity history versus time along a line and a two-dimensional velocity map of the whole surface at different time. In addition, the instrument measures velocity field at spatial resolution of 10 μm and velocity resolution of 15 m/s. The technique is employed to measure temporal and spatial velocity field of Al foils flyer driven by a pulse laser, and to reveal the continuous evolution of flyers. These results demonstrate that the simultaneous line imaging and plane framing imaging VISAR can be a valuable diagnostics for shock physics.
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Liu Shouxian, Lei Jiangbo, Chen Guanghua, Liu Jun, Wen Weifeng, Yuan Shuyun, Peng Qixian, Li Zeren. Simultaneous Line Imaging and Plane Framing Imaging Velocity Interferometer for Shock Physics[J]. Chinese Journal of Lasers, 2014, 41(1): 108007
Category: measurement and metrology
Received: Aug. 2, 2013
Accepted: --
Published Online: Jan. 2, 2014
The Author Email: Shouxian Liu (pion55@163.com)