Flue gas velocity measuring technology based on optical scintillation

被引：0
|
作者：
Yang, Yang [1 ]
Zhang, Zhi-Rong [2 ]
Ni, Zhi-Bo [2 ]
机构：
[1] The 716th Institute of China Shipbuilding Industry Corporation, Lianyungang 222006, China
[2] Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
来源：
Guangdianzi Jiguang/Journal of Optoelectronics Laser | 2014年 / 25卷 / 04期
关键词：
An optical measuring technology and its data processing method for the discharge velocity measurement of industrial flue gas are introduced; using the optical scintillation signals caused by the random fluctuations of particulate concentration field. Under the influence of turbulence; the cross correlation of optical scintillation signals; which is based on the separate double optical path measuring system structure; is analyzed; and the theoretical expression of the correlation function is acquired. The single circular linked list is adopted as the data accessing structure to implement the signal data sliding in time domain; and it can satisfy the requirements of real time and average simultaneously. The value of the optical scintillation cross correlation is calculated by the fast Fourier transform (FFT). An implementation method of parallel one-dimensional FFT using advanced vector extensions (AVX) instructions is proposed; and the FFT calculating speed is doubled on the computing platform which is based on the Intel i7 CPU. Finally; the field test results show that the flow velocity measured by the proposed technique in this paper is consistent well with the value tested by Pitot tube. It verifies the effectivenesses of this optical measuring technology and its data processing method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
引用
收藏
页码：711 / 717
相关论文
共 50 条
  • [31] Measuring devices for pressure and velocity of gas.
    Stach, E
    ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1915, 59 : 878 - 881
  • [32] Research on Construction Technology of Optical Radiation Measuring System Based on Virtual Instrument Technology
    Dong, Sanfeng
    PROCEEDINGS OF THE 2015 3RD INTERNATIONAL CONFERENCE ON MACHINERY, MATERIALS AND INFORMATION TECHNOLOGY APPLICATIONS, 2015, 35 : 110 - 115
  • [33] Study on Measurement Technology of Thermal Gas Flow Based on Effective Velocity
    Xu, Ying
    Duan, Chun-Jian
    Zhang, Tao
    Wang, Tian-Yu
    2018 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC): DISCOVERING NEW HORIZONS IN INSTRUMENTATION AND MEASUREMENT, 2018, : 1894 - 1899
  • [34] Measuring devices for pressure and velocity of gas.
    Stach, E
    ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1915, 59 : 894 - 898
  • [35] Optical disdrometer for measuring size and velocity of hydrometeors
    1600, American Meteorological Soc, Boston, MA, USA (17):
  • [36] An optical disdrometer for measuring size and velocity of hydrometeors
    Löffler-Mang, M
    Joss, J
    JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 2000, 17 (02) : 130 - 139
  • [37] An optical technique for measuring surface recombination velocity
    Ahrenkiel, R. K.
    Johnston, S. W.
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (05) : 645 - 649
  • [38] AN OPTICAL METHOD OF MEASURING TRANSVERSE SURFACE VELOCITY
    AGAR, WO
    BLYTHE, JH
    JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1968, 1 (01): : 25 - &
  • [39] A METHOD FOR MEASURING THE REACTIVITY OF ABSORBENTS FOR WET FLUE-GAS DESULFURIZATION
    AHLBECK, J
    ENGMAN, T
    FALTEN, S
    VIHMA, M
    CHEMICAL ENGINEERING SCIENCE, 1993, 48 (20) : 3479 - 3484
  • [40] Development of a Method for Measuring Gaseous Boron in Coal Combustion Flue Gas
    Noda, Naoki
    Ito, Shigeo
    Ueki, Yasuaki
    Yoshiie, Ryo
    Naruse, Ichiro
    KAGAKU KOGAKU RONBUNSHU, 2012, 38 (03) : 183 - 188
12345