The radiation spectrum of pyrotechnics' burning flame was analyzed using transientspectrum radiometer. The working principle of multi-spectral thermometry was described.
利用瞬态光谱辐射仪分析了火工烟火药剂燃烧火焰辐射光谱分布，介绍了多光谱辐射测温技术的工作原理。
2
The principles and experimental results of a frequency spectrum analyzer for all types of single transient processes are described in this paper.
本文叙述了一个适用于各种单次瞬态过程的频谱分析仪的工作原理和实验结果。
3
It is significant to study the spectrum of impact noise and the relation between spectrum of impact noise and transient time length.