摘要
为了用８ｍｍ波段傅里叶变换谱仪测量气体的转动吸收谱线，研制了一个用作气体样品池的圆柱螺旋腔．讨论了如何通过选择腔体结构和耦合方式抑制干扰模，并对腔的模式纯度和有载ＱＬ值进行了测试．
The cylindrical helical cavity sample pool is installed to measure gas rotational absorption spectra by means of an 8 mm microwave Fourier transform spectrometer.Techniques for suppression of unwanted oscillation modes through selecting the structure of cavity and method of coupling are discussed.The modes spurious and loaded cavity quality factor are measured
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第3期64-67,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家教委博士点基金
