Laser transmittance measurement technology on plume from solid-propellant engine
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摘要: 为获得羽烟对激光透过率的影响，用烟箱法对2种配方的缩比发动机羽烟在1.06m、10.6m激光波段的透过率进行测试。采用1.064m激光调制发射、接收、数据采集系统对1.06m激光波段烟雾透过率测试；用黑体、光谱辐射计、数据采集系统可测出2m ～13m 的光学透过率，从中提出10.6m激光波段烟雾透过率，得到不同推进剂配方、不同烟雾浓度情况下10.6m光波和1.06m光波的烟雾透过率测试数据。烟箱1.8m烟道上的测试数据表明：配方2推进剂优于配方1推进剂，10.6m光波的烟雾透过率96%～97%大于1.06m光波的烟雾透过率92%～93%。Abstract: The main performance of hyper-velocity kinetic missile and its solid propellants is described. The mechanism of laser attenuation caused by the plume of solid rocket motor is analyzed. The plume transmittance of two solid-propellant formulations was tested by the aid of a smoke-box when the laser wavebands were 1.06m and 10.6m. The plume transmittance in 1.06m laser was tested with 1.064m laser modulation emitting, receiving and data acqui-sition system. The plume transmittance of 10.6m laser was derived after the optical transmittance of 2m ～13m laser was tested with the blackbody radiation source, spectroradiometer and data acquisition system. The tested data indicates that formulation 2 is better than formulation 1, and the plume transmittance 96%～97% of 10.6m laser is higher than that 92%～93% of 1.06m laser.
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Keywords:
- solid propellant /
- plume of engine /
- laser transmittance
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