光谱学与光谱分析, 2009, 29 (12): 3177, 网络出版: 2010-01-04
原子发射双谱线法测火焰温度的实验研究
Experimental Study on Flame Temperature Measurement by Double Line of Atomic Emission Spectroscopy
火焰温度 原子发射光谱 燃烧 温度测量 Flame temperature Atomic emission spectroscopy Combustion Measurement of temperature
摘要
通过光谱仪测量火焰中K(766.5,769.9nm)原子发射谱线的相对强度比来获得火焰温度。介绍了测量原理、测量方法、实验系统。在黑体炉炉膛达到热力学平衡状态下,进行原子发射双谱线法和热电偶测温的对比实验,结果两种方法所测温度相关性较好,实验证明了该方法的可行性。用该方法测量煤粉和木材的火焰温度,结果和实际相符合。
Abstract
The flame temperature was measured by the double line of atomic emission spectroscopy according to the spectra of K(766.5 and 769.9 nm) whose relative intensity was obtained by fiber spectrometer. The principles, methods and experiment system were described. The temperature measured by the double line of atomic emission spectroscopy was compared to the results measured by thermal couple under the condition of thermal equilibrium of blackbody furnace. The comparison indicated a good coherence between these two measurement methods. The method was demonstrated on coal powder and timber, and the temperature measured corresponded to reality.
陈晓斌, 蔡小舒, 范学良, 沈嘉琪. 原子发射双谱线法测火焰温度的实验研究[J]. 光谱学与光谱分析, 2009, 29(12): 3177. CHEN Xiao-bin, CAI Xiao-shu, FAN Xue-liang, SHEN Jia-qi. Experimental Study on Flame Temperature Measurement by Double Line of Atomic Emission Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2009, 29(12): 3177.