An integral ultrasound transducer/pipe structure for flow imaging

A description is given of the design of an integral transducer-pipe structure suitable for both transmission-mode and reflection-mode ultrasound flow-imaging measurements. Data acquisition requirements for flow imaging are discussed. Preliminary experiments are presented to verify the design predictions. The structure is robust and reliable, and it eliminates the drawbacks of the conventional ultrasound data-acquisition techniques used in ultrasonic flow metering.
Gai, H. Beck, M.S. Institute of Electric and Electronic Engineer
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989

A COMBINED CAPACITANCE-ELECTRODYNAMIC TRANSDUCER FOR OIL PIPEUNE FLOW VELOCITY MEASUREMENT

Cross correlation techniques are becoming more widely used for solid or liquid flow velocity measurement This paper describes a combined capacitance-electrodynamic transducer which is used in a cross correlation system for oil pipeline flow velocity measurement. The two types of transducers employ a common set of measurement electrodes. The capacitance transducer is sensitive to void fluctuations with a variable sensitivity up to 8000 V/pF and the electrodynamic transducer is sensitive to the electric charge fluctuations arising from turbulent flows. Experimental results show that the electrodynamic transducer is suitable for measuring turbulent flows and the capacitance transducer for less turbulent flows.
W Q Yang M S Beck C P Lenn B S Hoyle
Chinese Society for Measurement;China State Bureau of Technical Supervision;China Association for Science and Technology;China Instrument Society;National Institute of Metrology
International conference on flow measurement;FLOMEKO; 19961020-24;19961020-24; Beijing(CN);Beijing(CN)

Beck Flow

21 Transom-Stern Flow for High-Speed Craft
[外文会议] Kevin J. Maki, Lawrence J. Doctors, Robert F. Beck, Armin W. Troesch, 2005
Two series of experiments have been conducted, one at the University of Michigan (U-M), and one at The University of New South Wales (UNSW), with a focus to characterize the flow in the transom region ...
22 AN OPTICAL FLOW APPROACH FOR PRECISE VISUAL NAVIGATION OF A PLANETARY LANDER
[外文会议] V. Tchernykh, M. Beck, K. Janschek, G. Flandin, 2005
Accurate landing at predetermined location is essential for future planetary exploration missions. A prerequisite for such pinpoint landing is a precise and fast navigation with respect to the surface,...
23 Influence of Off-body Energy Addition on an Oblique Shock Wave In a Supersonic Flow
[外文会议] S. H. Zaidi, W. H. Beck, P. J. Howard, M. N. Shneider, S. O. Macheret, R. B. Miles, 2005
It has been proposed that one way of reducing the sonic boom is to deposit energy upstream of the vehicle. A computational and experimental study has been carried out on the near-field flow around a we...
24 Influence of Off-body Energy Addition on an Oblique Shock Wave in a Supersonic Flow
[外文会议] Zaidi, S.H., Beck, W.H., Howard, P.J., Shneider, M.N., Macheret, S.O., Miles, R.B., 2005
It has been proposed that one way of reducing the sonic boom is to deposit energy upstream of the vehicle. A computational and experimental study has been carried out on the near-field flow around a we...
25 Development of a Lower Body Negative Pressure Box with an Environmental Control System for Physiological Studies
[外文会议] T. Russomano, F. Falcao, J. Gurgel, L. Piccoli, F. Porto, G. Dalmarco, D.F.G. de Azevedo, J. Allan, L. Beck, G. Petrat, S. Thompsen, 2005
A headward fluid shift occurs during microgravity exposure, which causes the cardiovascular adaptive syndrome. Different countermeasures have been proposed to decrease its symptomatology, like the appl...
26 THREE DIMENSIONAL VELOCITY MEASUREMENTS IN AN AUTOMOTIVE-SIZE EVAPORATOR USING PARTICLE IMAGE VELOCIMETRY
[外文会议] Steven P. O'Halloran, B. Terry Beck, Mohammad H. Hosni, Steven J. Eckels, 2004
The flow distribution inside of an evaporator is important to fully understand in order to optimize the design of the evaporator. A stereoscopic particle image velocimetry (PIV) system was used to meas...
27 THREE DIMENSIONAL VELOCITY MEASUREMENTS IN AN AUTOMOTIVE-SIZE EVAPORATOR USING PARTICLE IMAGE VELOCIMETRY
[外文会议] Steven P. O'Halloran, B. Terry Beck, Mohammad H. Hosni, Steven J. Eckels, American Society of Mechanical Engineers(ASME); American Society of Mechanical Engineers(ASME);, 2004
The flow distribution inside of an evaporator is important to My understand in order to optimize the design of the evaporator. A stereoscopic particle image velocimetry (PIV) system was used to measure...
28 Xenon gas flow patterns evaluated by high-speed multi-row detector CT
[外文会议] Deokiee Chon, Ken C. Beck, Hidenori Shikata, Osama I. Saba, Brett A. Simon, Chulho Won, Eric A. Hoffman, 2004
Regional lung ventilation can be measured via Xenon-enhanced computed tomography (Xe-CT) by determining washin (WI) and washout (WO) rates of stable Xe. It has been assumed that WI = WO, ignoring Xe so...
29 Xenon gas flow patterns evaluated by high speed multi-row detector CT
[外文会议] Deokiee Chon, Ken C. Beck, Hidenori Shikata, Osama I. Saba, Brett A. Simon, Chulho Won, Eric A. Hoffman, SPIE-The International Society for Optical Engineering; SPIE v.5369 and Progress in Biomedical Optics and Imaging v.5 no.23, 2004
Regional lung ventilation can be measured via Xenon-enhanced computed tomography (Xe-CT) by determining washin (WI) and washout (WO) rates of stable Xe. It has been assumed that WI = WO, ignoring Xe so...
30 Robustness of real and virtual queue based active queue management schemes
[外文会议] Lakshmikantha, A., Beck, C.L., Srikant, R., 2003
In this paper, we compare the performances of the real and virtual queue based marking schemes used at the routers in the Internet. Using simple fluid flow models, we show via an analysis and simulatio...

Beck flow

11 Integration of Multiple Temporal and Spatial Scales for Robust Optic Flow Estimation in a Biologically Inspired Algorithm
[外文会议] Cornelia Beck, Thomas Gottbehuet, Heiko Neumann, 2007
We present a biologically inspired iterative algorithm for motion estimation that combines the integration of multiple temporal and spatial scales. This work extends a previously developed algorithm th...
12 Integration of Multiple Temporal and Spatial Scales for Robust Optic Flow Estimation in a Biologically Inspired Algorithm
[外文会议] Cornelia Beck, Thomas Gottbehuet, Heiko Neumann, 2007
We present a biologically inspired iterative algorithm for motion estimation that combines the integration of multiple temporal and spatial scales. This work extends a previously developed algorithm th...
13 INVESTIGATION OF THE EFFECT OF INCOMPLETE DROPLET PREVAPORISATION ON NO_x EMISSIONS IN LDI COMBUSTION SYSTEMS
[外文会议] Christian H. Beck, Rainer Koch, Hans-Joerg Bauer, American Society of Mechanical Engineers(ASME); International Gas Turbine Institute;, 2007
The influence of incomplete liquid fuel prevaporisation on the emissions of nitric oxides in a swirl stabilized model gas turbine combustor is investigated experimentally and numerically. The design of...
14 Flow in idealised compliant human cystic duct models
[外文会议] M. Al-Atabi, S. B. Chin, S. Beck, X. Y. Luo, 2007
The functions of the cystic duct and the role of its complicated geometry (in particular the valves of Heister), in the delivery of bile ow have always been a subject of speculation. This paper reports...
15 Transparent Dataflow Execution for Embedded Applications
[外文会议] Rutzig, M.B., Beck, A.C.S., Carro, L., CSMDL, 2007
The development of embedded systems is getting more complex. With severe power constraints and with the necessity of shrinking time-to-market, designers face the challenge of increasing the performance...
16 THE SWIRLING ORIFICE PLATE: A FLOWMETER FOR ALL REASONS
[外文会议] A. Ahmadi, S. B. M. Beck, R. Stanway, 2005
The orifice plate flow meter is the most common form of differential pressure flow meter used in industry. The standard discharge coefficient, which is defined by both British Standard and ISO 5167, is...
17 THE SWIRLING ORIFICE PLATE: A FLOWMETER FOR ALL REASONS
[外文会议] A. Ahmadi, S. B. M. Beck, R. Stanway, American Society of Mechanical Engineers(ASME);, 2005
The orifice plate flow meter is the most common form of differential pressure flow meter used in industry. The standard discharge coefficient, which is defined by both British Standard and ISO 5167, is...
18 Optic Flow Integration at Multiple Spatial Frequencies - Neural Mechanism and Algorithm
[外文会议] Cornelia Beck, Pierre Bayer, Heiko Neumann, 2006
In this work we present an iterative multi-scale algorithm for motion estimation that follows mechanisms of motion processing in the human brain. Keeping the properties of a previously presented neural...
19 Optic Flow Integration at Multiple Spatial Frequencies - Neural Mechanism and Algorithm
[外文会议] Cornelia Beck, Pierre Bayerl, Heiko Neumann, ;, 2006
In this work we present an iterative multi-scale algorithm for motion estimation that follows mechanisms of motion processing in the human brain. Keeping the properties of a previously presented neural...
20 Optic Flow Integration at Multiple Spatial Frequencies - Neural Mechanism and Algorithm
[外文会议] Cornelia Beck, Pierre Bayerl, Heiko Neumann, 2006
In this work we present an iterative multi-scale algorithm for motion estimation that follows mechanisms of motion processing in the human brain. Keeping the properties of a previously presented neural...

Beck flow

1 An Embedded Optical Flow Processor for Visual Navigation using Optical Correlator Technology
[外文会议] Valerij Tchernykh, Martin Beck, Klaus Janschek, 2006
The conceptual design of an embedded high performance opto-electronic optical flow processor is presented, which is designed for navigation applications in the field of robotics (ground, aerial, marine...
2 An Embedded Optical Flow Processor for Visual Navigation using Optical Correlator Technology
[外文会议] Valerij Tchernykh, Martin Beck, Klaus Janschek, The Institute of Electrical and Electronics Engineers, Inc., 2006
The conceptual design of an embedded high performance opto-electronic optical flow processor is presented, which is designed for navigation applications in the field of robotics (ground, aerial, marine...
3 Flow in Idealised Compliant Human Cystic Duct Models
[外文会议] M. Al-Atabi, S. B Chin, S. Beck, X. Y. Luo, 2008
The functions of the cystic duct and the role of its complicated geometry (in particular the valves of Heister), in the delivery of bile flow have always been a subject of speculation. This paper repor...
4 OPTICAL FLOW BASED NAVIGATION FOR MOBILE ROBOTS USING AN EMBEDDED OPTICAL CORRELATOR
[外文会议] K. Janschek, V. Tchernykh, M. Beck, 2005
The proposed navigation concept solves the problem of autonomous real time navigation of mobile robots with a single wide angle camera as primary perception sensor and a standard odometry as auxiliary ...
5 EXPERIMENTAL MEASUREMENTS AND NUMERICAL SIMULATIONS OF TWO-PHASE STRATIFIED, WAVY AND SLUG FLOW IN A NARROW RECTANGULAR CHANNEL
[外文会议] Steven P. O'Halloran, B. Terry Beck, Mohammad H. Hosni, Steven J. Eckels, 2005
Flow pattern transitions in two-phase flow are important phenomena for many different types of engineering applications, including heat exchangers. While two-phase flow is not understood as well as sin...
6 OPTICAL FLOW BASED NAVIGATION FOR MOBILE ROBOTS USING AN EMBEDDED OPTICAL CORRELATOR
[外文会议] K. Janschek, V. Tchernykh, M. Beck, 2005
The proposed navigation concept solves the problem of autonomous real time navigation of mobile robots with a single wide angle camera as primary perception sensor and a standard odometry as auxiliary ...
7 EXPERIMENTAL MEASUREMENTS AND NUMERICAL SIMULATIONS OF TWO-PHASE STRATIFIED, WAVY AND SLUG FLOW IN A NARROW RECTANGULAR CHANNEL
[外文会议] Steven P. O'Halloran, B.Terry Beck, Mohammad H. Hosni, Steven J. Eckels, American Society of Mechanical Engineers(ASME);, 2005
Flow pattern transitions in two-phase flow are important phenomena for many different types of engineering applications, including heat exchangers. While two-phase flow is not understood as well as sin...
8 FLUORESCENT PARTICLE INJECTION TECHNIQUE FOR TWO-PHASE FLOW MEASUREMENT USING PARTICLE IMAGE VELOCIMETRY
[外文会议] Steven P. O'Halloran, B.Terry Beck, American Society of Mechanical Engineers(ASME);, 2006
Particle image velocimetry (PIV) is a well established measurement technique to measure velocity in a variety of different fluids. Using PIV to measure single-phase flow is well established, but recent...
9 FLUORESCENT PARTICLE INJECTION TECHNIQUE FOR TWO-PHASE FLOW MEASUREMENT USING PARTICLE IMAGE VELOCIMETRY
[外文会议] Steven P. O'Halloran, B. Terry Beck, Mohammad H. Hosni, Steven J. Eckels, 2006
Particle image velocimetry (PIV) is a well established measurement technique to measure velocity in a variety of different fluids. Using PIV to measure single-phase flow is well established, but recent...

Fringes in Correllation