Filters








34 Hits in 7.0 sec

Electromagnetic Flow Detection Technology Based on Correlation Theory

Liang Ge, HaiLong Li, Qi Huang, Guiyun Tian, Guohui Wei, Ze Hu, Junaid Ahmed
2020 IEEE Access  
in suppression of strong noise interference, slurry flow measurement, and low flow rate measurement.  ...  Then, the design of the electromagnetic flow measurement system based on the theoretical research is completed.  ...  based on the result of theoretical analysis.  ... 
doi:10.1109/access.2020.2982474 fatcat:sfkh7c2zyfhznpf37yo732blb4

Study of the ability of an electromagnetic flowmeter based on step excitation to overcome slurry noise

Bin Li, Yue Yan, Jie Chen, Xinghang Fan
2020 IEEE Access  
An electromagnetic flowmeter (EMF) can be used to measure the speed of slurry fluid.  ...  INDEX TERMS Electromagnetic flowmeter, slurry noise, Maxwell's equations, step excitation, slurry noise overcoming method. 126540 This work is licensed under a Creative Commons Attribution 4.0 License.  ...  First, in the time domain, the level of slurry noise generated on the electrode is jumping.  ... 
doi:10.1109/access.2020.3008419 fatcat:zukbuz6ygfdfjcgkebllpsexoy

Ray tracing in a turbulent, shallow‐water channel

Christian Bjerrum‐Niese, René Lützen, Leif Bjo/rno/
1998 Journal of the Acoustical Society of America  
The accuracy of power-based prediction methods for sound and vibration transmission in built-up structures, such as statistical energy analysis, is crucially dependent on the estimation of the input power  ...  power spectrum of the auditory image flow ͓D.  ...  The Kalman-based algo-rithm can estimate the proper parameter in the additive white Gaussian noise.  ... 
doi:10.1121/1.422455 fatcat:vqypn7trzberzap3bkznkoddcu

Scattering by two spheres: Theory and experiment

Irina Bjo/rno/, Leif Bjo/rno/
1998 Journal of the Acoustical Society of America  
The accuracy of power-based prediction methods for sound and vibration transmission in built-up structures, such as statistical energy analysis, is crucially dependent on the estimation of the input power  ...  power spectrum of the auditory image flow ͓D.  ...  The Kalman-based algo-rithm can estimate the proper parameter in the additive white Gaussian noise.  ... 
doi:10.1121/1.421626 fatcat:qf2u35fztjfgtgredwhbg53zwm

1976 IEEE Ultrasonics Symposium Abstracts

1977 IEEE Transactions on Sonics and Ultrasonics  
The derivation of acoustoelectric coupling and acoustic reflection from a single tap is based on approximate calculations of the electrostatic charge distribution set up in a transducer by an externally  ...  In virtually all work on interdigital transducers, it is assumed that the excitation profie across the width of the transducers is constant.  ...  The data is encoded on a 100-Mchipjs pseudo-noise spread-spectrum carrier.  ... 
doi:10.1109/t-su.1977.30922 fatcat:cjr5dktrszbmtdtfwco7f2tmvy

Report to the American Physical Society by the study group on research planning for coal utilization and synthetic fuel production

Bernard R. Cooper, Wayne R. Gruner, Larry Anderson, Robert H. Davis, Paul Engelking, Jose D. Garcia, Edward Gerjuoy, Robert I. Jaffee, Philip G. Kosky, Leonidas Petrakis, Robert T. Poe, Richard Pollina (+10 others)
1981 Reviews of Modern Physics  
Although the Panel was aware of the impor tance of environmental ef feets in coal utilization, we have not dealt with quest, ions of environmental impact.  ...  (See discussion in  ...  Schematic of the electromagnetic absorption spectrum of an 85% carbon coal.  ... 
doi:10.1103/revmodphys.53.s1 fatcat:3ver7ppwjfbv7mhbswvbeccqyu

Three Dimensional Finite Element Analysis of Radial-flow Impeller Temperature Field

Liangwei Zhong, Kangmin Chen, Jing Ni, Anyang He
2008 Modern Applied Science  
Acknowledgments We thank DUE Project University of Lampung and Australian Research Council for the financial supports. Thank also goes to Ms. L. Lambert for her help in NMR experimentation and Mr. G.  ...  Acknowledgement With out the blessings of Almighty, the support of management and staff members of Thiagarajar College of  ...  Electromagnetic flowmeter Electromagnetic flowmeter is mostly used to measured the volume flow of electric liquid and liquid-solid.  ... 
doi:10.5539/mas.v2n6p11 fatcat:yb7xaqcu2fckxnuetfn7bwwuyu

Three dimensional finite element analysis of radial-flow impeller temperature field

Liang-wei Zhong, Kang-min Chen
2010 2010 International Conference on Mechanic Automation and Control Engineering  
Acknowledgments We thank DUE Project University of Lampung and Australian Research Council for the financial supports. Thank also goes to Ms. L. Lambert for her help in NMR experimentation and Mr. G.  ...  Acknowledgement With out the blessings of Almighty, the support of management and staff members of Thiagarajar College of  ...  Electromagnetic flowmeter Electromagnetic flowmeter is mostly used to measured the volume flow of electric liquid and liquid-solid.  ... 
doi:10.1109/mace.2010.5535344 fatcat:xqn7azzkcjgkhcgl5cuwtqlgue

Modern Applied Science, Vol. 2, No. 5, September 2008, all in one file

Editor MAS
2008 Modern Applied Science  
Acknowledgments We thank DUE Project University of Lampung and Australian Research Council for the financial supports. Thank also goes to Ms. L. Lambert for her help in NMR experimentation and Mr. G.  ...  Acknowledgement With out the blessings of Almighty, the support of management and staff members of Thiagarajar College of  ...  Electromagnetic flowmeter Electromagnetic flowmeter is mostly used to measured the volume flow of electric liquid and liquid-solid.  ... 
doi:10.5539/mas.v2n5p0 fatcat:7rywmzjd65fljadmpwcmlxifh4

Turbulence in the swash and surf zones: a review

Sandro Longo, Marco Petti, Inigo J. Losada
2002 Coastal Engineering  
This paper reviews mainly conceptual models and experimental work, in the field and in the laboratory, dedicated during the last decades to studying turbulence of breaking waves and bores moving in very  ...  The limits of the present knowledge, especially in modelling a two-or three-phase system, with air and sediment entrapped at high turbulence level, and perspectives of future research are discussed. D  ...  The suggestions of the anonymous reviewers have result in a considerable improvement of this review paper.  ... 
doi:10.1016/s0378-3839(02)00031-5 fatcat:byt3abar6fepnon73kv7pdpfcm

Particle dynamics and granular temperatures in dense fluidized beds as revealed by diffusing wave spectroscopy

V. Zivkovic, M.J. Biggs, D.H. Glass, L. Xie
2009 Advanced Powder Technology  
An overview of DWS in the context of other techniques for studying the granular temperature and dynamics of particles in granular systems, and its application to a range of fluidized bed configurations  ...  For the first time is revealed that vertical profiles of the granular temperature are a consequence of observed concentration stratification in a liquid fluidized bed.  ...  , the power spectrum of a random function is the Fourier transform of its autocorrelation function [94].  ... 
doi:10.1016/j.apt.2009.03.003 fatcat:etzp4rk3fja5thk7rmq5zp7r6i

Acoustic methods for obtaining the pressure reflection coefficient from a buffer rod based measurement cell

E. Bjorndal, K.-E. Froysa
2008 IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control  
Based on regression analysis, empirical equations were established to calculate acoustic velocities in oils as a function of temperature and pressure if the densities are known.  ...  This noise level can be seen in Fig. 5 .25, where no averaging was applied. By using the switch network, the noise on the Tx-channel was reduced by a factor of 3-4.  ...  Appendix D: Reference data for the distilled water The reference values of the sound speed c and of the density ρ of distilled water versus temperature as used in this work, as given by [46] and [47  ... 
doi:10.1109/tuffc.2008.862 pmid:18986921 fatcat:unvq756325cdpkudglv3p6e33a

Multifuel Burners [chapter]

2014 Combustion Engineering and Gas Utilisation  
It is based on the principle of dynamic similarity, and employs the method of dimensional analysis for the correlation of empirical data.  ...  The aerodynamic noise produced by a Coanda pump is lower than that of a conventional design and they have been applied to reducing noise levels in high pressure atmospheric burners.  ...  Direct mass flowmeters (liquids and gases) A true mass flowmeter is one in which the reaction of the basic sensing element is dependent on the mass flowrate of fluid through the device and instruments  ... 
doi:10.4324/9781315024714-10 fatcat:w4epumpwrzeqji2u6jpj4xfyqy

The measurement of Reynolds stresses in a model river bend using acoustic doppler velocimeters

Gavin Charles Post, Université D'Ottawa / University Of Ottawa, Université D'Ottawa / University Of Ottawa
2013
This thesis reports the first two experiments in long term study of the distribution of Reynolds stresses in a model river bend, as well as the development and procedural details of the model river bend  ...  Through the examination of the mean flow properties and verifying that the measurements are correct, the discovery of two zones of high streamwise-vertical Reynolds stress are reported, one at the beginning  ...  With data filtered based on the noise ratio cut-off, power spectrum and noise calculations are completed again as well as Reynolds stresses and mean turbulent statistics.  ... 
doi:10.20381/ruor-18974 fatcat:cuimxomb2nah3mez6kxx2ofxme

Fluid flow measurement using electrical and optical fibre strain gauges

R Philip-Chandry
2017
The sensor has a repeatability of 0.02%, linearity within 2% and a resolution of 0.43 m/s. The most noteworthy feature of the flow sensor is its quick response time of 50 milliseconds.  ...  The force exerted by the fluid flow on the sensors are measured using strain gauges.  ...  [ electrical resistance strain gauge has been the most powerful single tool in the field of experimental stress analysis since 1940.  ... 
doi:10.24377/ljmu.t.00005565 fatcat:w63zpyld3jeqto3p3x4ztthkdm
« Previous Showing results 1 — 15 out of 34 results