Disturbance wave frequency measurement using NIR technique in horizontal annular flow

被引：0
|
作者：
Sun, Hongjun [1 ]
Gui, Mingyang [1 ]
Zhao, Ning [1 ]
Wang, Tianyv [2 ]
机构：
[1] Tianjin Univ, Sch Elect & Informat Engn, Tianjin 300072, Peoples R China
[2] North China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China
来源：
2018 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC): DISCOVERING NEW HORIZONS IN INSTRUMENTATION AND MEASUREMENT | 2018年
基金：
中国国家自然科学基金;
关键词：
near infrared; absorption; annular flow; disturbance wave; frequency; FILM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
According to the absorption of the near infrared (NIR) light by the liquid film, an optical sensor was designed to measure the disturbance wave frequency. This NIR sensor was designed with a vertically transmitted light path. Then by measuring the attenuation of the light intensity, the dynamic local film thickness was obtained. Using the power spectral density (PSD), the data of disturbance wave frequency were got. The results showed that the wave frequency increases with the increase of gas velocity and gas density. Based on the experimental data under different pressures of 0.3-0.9MPa, a calculation for the wave frequency was proposed. This calculation could achieve good fitting for both the current data and the available data, with MAE of 10.45% and 25.16%, separately.
引用
收藏
页码：2009 / 2014
页数：6
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