用于电弧喷射羽流重建的二极管激光层析成像技术。

Diode-laser tomography for arcjet plume reconstruction.

作者信息

Zhang F Y, Fujiwara T, Komurasaki K

出版信息

Appl Opt. 2001 Feb 20;40(6):957-64. doi: 10.1364/ao.40.000957.

DOI:10.1364/ao.40.000957

Abstract

Diode-laser absorption tomography is described with which the spatial temperature and the atomic number density distribution of a 3-kW class arcjet can be derived simultaneously by reconstruction of the absorption coefficient field of the arcjet's argon exhaust plume. One can perform various parameter measurements by changing the arcjet's mass-flow rates and discharge currents. The maximum temperature and atomic number density increase with the mass-flow rate and the discharge current. The trend for increase is not always found for a specific input power, although at a fixed mass-flow rate the power increases at that rate.

摘要

描述了一种二极管激光吸收层析成像技术，通过重建3千瓦级电弧加热发动机氩气排气羽流的吸收系数场，可以同时推导出其空间温度和原子数密度分布。通过改变电弧加热发动机的质量流量和放电电流，可以进行各种参数测量。最高温度和原子数密度随质量流量和放电电流的增加而增加。尽管在固定质量流量下功率以该速率增加，但对于特定输入功率，并不总是能发现这种增加趋势。