CAJ | 학술논문

针对波长扫描直接吸收光谱法（SDAS）在燃烧诊断应用中受温度与压强等参数影响的问题，采用光谱仿真计算讨论该方法的适用情况，以常用的 H2 O 分子7185．597 cm－1谱线为例，基于HITRAN 光谱数据库，对不同温度和压强下分子吸收光谱影响因素进行分析．根据目前二极管激光器调制范围一般在2 cm－1以内，得到了燃烧诊断应用中 SDAS 技术适用的一般原则，并对适用范围的拓展提出了建议．
침대파장소묘직접흡수광보법（SDAS）재연소진단응용중수온도여압강등삼수영향적문제，채용광보방진계산토론해방법적괄용정황，이상용적 H2 O 분자7185．597 cm－1보선위례，기우HITRAN 광보수거고，대불동온도화압강하분자흡수광보영향인소진행분석．근거목전이겁관격광기조제범위일반재2 cm－1이내，득도료연소진단응용중 SDAS 기술괄용적일반원칙，병대괄용범위적탁전제출료건의．
For understanding the influences of temperature and pressure on combustion diagnostics by the scanned-wavelength direct absorption spectroscopy (SDAS),the molecular absorption spectrum simulation method was used to discuss the application conditions.Based on HITRAN database,taking 7 185.597 cm-1 water-vapor line as an example,the influence factors were analyzed at different temperature and pressure.Considering the modulation range of diode laser is about 2 cm-1 at present,the application criterions of SDAS for combustion diagnostics were discussed and summarized,and the suggestions which broaden the application range were presented.