Analysis of spectrum characteristics of optical scintillation in stack gas flow

• 来源期刊: 中国物理（英文版）
• 关键词: stack gas flow optical scintillation particle concentration spectrum
• 年，卷（期）: 2006,（8）
• 页码范围: 1777-1782
• 页数: 6页
• 语种: 英文

摘要

Based on the analysis of spectrum characteristics of intensity fluctuations while light beams pass through stack gas flow in an industrial setting, this paper puts emphasis upon discussing the spectrum of optical intensity fluctuations by the variety of particle concentration in stack gas flow. This paper also gives the primary theoretical explanation of the measurement results in the stack of coal-fired utility boilers. Meanwhile, the cross-correlation formula is given as the theoretical basis of velocity measurement by using particle concentration scintillation.