【作者】 刘海波； 候国华； 孙彦峰； 马健；

【Author】 Liu Haibo[1] Hou Guohua[2] Sun Yanfeng[1] Ma Jian[1] (1. College of Electronic Science and Engineering, Jilin University, Changchun 130012,China 2.Jilin Broadcast University, Changchun 130022,China )

【机构】 吉林大学电子科学与工程学院； 吉林广播电视大学；

【摘要】 本文利用激光散射的Mie理论研究了汽轮机低压缸中的干度测量方法。在推导计算出的相函数曲线的基础上,提出了测量信号反演拟合的数据处理方法,并对此方法中光折射率的实部和虚部的影响进行了研究。根据实际的汽轮机的实际要求提出了干度传感器的光散射的基本结构以及硬件电路的基本设计。本文的研究结果为进一步研究设计集成智能的传感系统奠定了理论和设计基础,为汽液两相流中的湿蒸汽含量的测量提供了一种在线测量方法,解决了焓熵图中的干度测量的技术难题。更多还原

【Abstract】 In this paper, the moisture measurement in LP cylinder of turbine had been reported by Laser light scattering Mie Theory. A method of reverse simulation for data-fitting had been used based on the phase-function curves by calculating Mie scattering coefficient. And the influence of the real part and imaginary part of optical refractive index had been researched. We reported a sensitive light scattering structure and a circuit design for detecting wetness in turbine. The paper’s finding laid the theoretical and experimental basis for further research and design of integrated intelligent sensor system. A new method of detecting online for the vapor-liquid two-phase flow of moisture vapor content has been provided to solving the technological problems of the wetness measuring of the enthalpy - entropy map.更多还原