Multi-use laser impulse pendulum and laser propulsion parameters measurement

被引：3

作者：

李静

童慧峰

蔡建

唐志平

李胜利

机构：

[1] Key Lab for Mechanical Behavior and Design of Materials

[2] Key Lab for Mechanical Behavior and Design of Materials Chinese of Academy Sciences

[3] University of Science and Technology of China

[4] Hefei

[5] Chinese of Academy Sciences

来源：

Chinese Optics Letters | 2004年 / 11期

关键词：

mode; Multi-use laser impulse pendulum and laser propulsion parameters measurement; high;

D O I：

暂无

中图分类号：

TN247 [光检测技术];

学科分类号：

0803 ; 080401 ; 080901 ;

摘要：

<正>In order to investigate the mechanisms of both the air-breathing and the ablation modes of laser propulsion under laboratory conditions, a multi-use laser impulse pendulum (MULIP) is developed. The measurable impulse range is from 1.0×10-4 to 3.8×10-3 N·s. The experimental calibration data agree well with the theoretical calculated data. With MULIP, the ablation mode has been performed, in which a high power pulsed Nd:glass laser (λ= 1.06μm, τ=20 ns) and a gray PVC film sample are used. The experimental results show that the maximum momentum coupling coefficient Cm is 7.73×10-5 N/W, and the maximum specific impulse Isp is 208.6 s.

引用

页码：650 / 653

页数：4