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Transactions of the Institute of Measurement and Control, 1979
Recent accounts of ultrasonic flowmeters usually concentrate on either transit time or Doppler types. Although these are the most common types in use today, at least six other types exist. Part 1 of this two-part paper describes the physical principles of eight types of ultrasonic flowmeters, along with some general considerations (flow profile ...
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Recent accounts of ultrasonic flowmeters usually concentrate on either transit time or Doppler types. Although these are the most common types in use today, at least six other types exist. Part 1 of this two-part paper describes the physical principles of eight types of ultrasonic flowmeters, along with some general considerations (flow profile ...
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The Quarterly Journal of Mechanics and Applied Mathematics, 1988
The reciprocity principle is shown to provide the basis for a theory of any one of a wide class of flowmeters that use the effect of flow on a field to arrive at a reading of flow rate. Examples of such `interrogating field' flowmeters are electromagnetic flowmeters, transit- time ultrasonic flowmeters and Coriolis mass flowmeters.
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The reciprocity principle is shown to provide the basis for a theory of any one of a wide class of flowmeters that use the effect of flow on a field to arrive at a reading of flow rate. Examples of such `interrogating field' flowmeters are electromagnetic flowmeters, transit- time ultrasonic flowmeters and Coriolis mass flowmeters.
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A Transportable Ejector Flowmeter
Acta Anaesthesiologica Scandinavica, 1976A transportable ejector flowmeter for the complete removal of anaesthetic gases from operating theatres and anaesthetic rooms is described. The ejector flowmeter can also be employed as a suction unit driven by compressed air.
S, Jorgensen, A, Thomsen
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A flowmeter including a system chip with a silicon substrate provided on a carrier, in an opening whereof at least one silicon flow tube is provided for transporting a medium whose flow rate is to be measured, the tube having two ends that issue via a wall of the opening into channels coated with silicon nitride in the silicon substrate, wherein the ...
Lammerink, Theodorus S.J. +3 more
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Lammerink, Theodorus S.J. +3 more
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Modern water flowmeters: Oscillating flowmeters
2016 International Conference and Exposition on Electrical and Power Engineering (EPE), 2016The oscillating flowmeters have the characteristic fluid flow — oscillation frequency swirled jet. These types of flowmeters are without moving parts, may be on the principle of constructive: the Vortex flowmeters and the Coanda flowmeters. The Vortex flow meters have as basic principle the Vortex accomplishment around obstacles that are placed against
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Journal of Urology, 1977
A simple and inexpensive uroflowmeter has been designed that uses a common carbon dioxide cystometer. The patient voids urine in a specially designed container connected at the bottom of the carbon dioxide source in the cystometer. After proper calibration (500 cc fluid for a 20 mm.
S, Raz, J, Martin, J J, Kaufman
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A simple and inexpensive uroflowmeter has been designed that uses a common carbon dioxide cystometer. The patient voids urine in a specially designed container connected at the bottom of the carbon dioxide source in the cystometer. After proper calibration (500 cc fluid for a 20 mm.
S, Raz, J, Martin, J J, Kaufman
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The electromagnetic blood flowmeter
Journal of Physics E: Scientific Instruments, 1968The electromagnetic blood flowmeter is an important tool with both medical research and clinical applications. Its principles and development are reviewed; the subjects discussed include head design, transformer e.m.fs, catheter devices, electronic systems, baseline stability, calibration and commercial instruments.
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Abstract A traditional flowmeter is a glass tube, also called a Thorpe tube, with variable orifice and a flow measurement scale (graduations) marked on it. Inside there is a floating device, a ball or bobbin, to indicate the flow of gases. The function of the flowmeter is based primarily on physical principles.
Sohail K. Mahboobi, Mark L. Germani
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Sohail K. Mahboobi, Mark L. Germani
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