Hilbert–Huang Transform-Based Electrostatic Signal Analysis of Ring-Shape Electrodes With Different Widths

Online measurement of the particulate flow plays a significant role in the monitoring and controlling process of the industrial application. Due to the simple structure and high sensitivity, the electrostatic method is widely used in the measurement of the gas-solid two-phase flow. The ring-shape electrodes with different widths have different sensitivity distributions. The electrostatic signals from the electrodes of 2- and 10-mm axial widths were obtained from experiments conducted on the gas-solid two-phase flow rig. Because of the advantages of the Hilbert-Huang transform, it was utilized to investigate the characteristics of the electrostatic signals from different electrodes and to extract the features to characterize the change of solid concentrations. Considering the correlation coefficient between the features and the solid concentrations and the features' linear performance under different air flow rates, the energies of the intrinsic mode function 3 from different signals were extracted to characterize the change of solid concentrations.

[1]  Y Yant,et al.  Velocity measurement of pneumatically I conveyed solids using electrodynamic I sensors , 1995 .

[2]  N. Huang,et al.  The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis , 1998, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[3]  Chuanlong Xu,et al.  The spatial filtering method for solid particle velocity measurement based on an electrostatic sensor , 2009 .

[4]  Javier Villa Briongos,et al.  Phase space structure and multi-resolution analysis of gas–solid fluidized bed hydrodynamics: Part II: Dynamic analysis , 2007 .

[5]  Chuanlong Xu,et al.  Dense-phase pneumatically conveyed coal particle velocity measurement using electrostatic probes , 2010 .

[6]  Chao Wang,et al.  Parameter Selection in Cross-Correlation-Based Velocimetry Using Circular Electrostatic Sensors , 2010, IEEE Transactions on Instrumentation and Measurement.

[7]  Huaxiang Wang,et al.  Hilbert-Huang transform based electrostatic signal analysis for characterization of dilute gas-solid two-phase flow , 2011, 2011 IEEE International Instrumentation and Measurement Technology Conference.

[8]  Javier Villa Briongos,et al.  Phase space structure and multi-resolution analysis of gas–solid fluidized bed hydrodynamics: Part I — The EMD approach , 2006 .

[9]  Gabriel Rilling,et al.  On empirical mode decomposition and its algorithms , 2003 .

[10]  J. Gajewski.  Non-contact electrostatic flow probes for measuring the flow rate and charge in the two-phase gas–solids flows , 2006 .

[11]  Hongjian Zhang,et al.  Flow Regime Identification of Gas-liquid Two-phase Flow Based on HHT , 2006 .

[12]  Yong Yan,et al.  Velocity Measurement of Pneumatically Conveyed Particles Using Intrusive Electrostatic Sensors , 2010, IEEE Transactions on Instrumentation and Measurement.

[13]  J. Ma,et al.  Design and evaluation of electrostatic sensors for the measurement of velocity of pneumatically conveyed solids , 2000 .

[14]  Qiang Liu,et al.  Review of techniques for the mass flow rate measurement of pneumatically conveyed solids , 2011 .

[15]  Chuanlong Xu,et al.  HHT analysis of electrostatic fluctuation signals in dense-phase pneumatic conveying of pulverized coal at high pressure , 2010 .

[16]  Yong Yan,et al.  REVIEW ARTICLE: Mass flow measurement of bulk solids in pneumatic pipelines , 1996 .

[17]  Shuji Matsusaka,et al.  Simultaneous measurement of mass flow rate and charge-to-mass ratio of particles in gas-solids pipe flow , 2006 .

[18]  Chuanlong Xu,et al.  Velocity measurement of pneumatically conveyed solid particles using an electrostatic sensor , 2008 .

[19]  Yong Yan,et al.  Hilbert–Huang transform based signal analysis for the characterization of gas–liquid two-phase flow , 2007 .