Magnetic Flow / Magflow MetersSince their introduction in the 1950s, Magflow electromagnetic flow meters have become one of the most widely used flowmeter types for measuring water and other liquids. Also known as Magmeters, magnetic flow meters or...
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Paddle WheelPrinciples of Operation Paddle wheel flow meters consist of three primary components: the paddle wheel sensor, the pipe fitting and the display/controller. The paddle wheel sensor consists of a freely rotating wheel | impeller...
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TurbinePrinciples of Operation The basic construction of turbine flow meters includes a bladed turbine rotor which is axially suspended in the pipe. As the fluid flows through the pipe, it causes the rotor to spin on its axis...
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VortexSelecting Vortex Flow Meters Vortex Flow Meter Principle of Operation Under certain conditions vortices regularly form downstream of an object (bluff body) placed in a flowing fluid and shed on alternating sides of the stream.
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Oval Gear Flow MetersOval gear flow meters are traditional, mechanical, positive displacement (PD) flow meters, first invented more than 50 years ago by OVAL Corporation of Japan and now widely used for flow metering applications.
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Coriolis MetersHow the Coriolis Force works inside a Flow Meter Coriolis meters have a sine wave voltage applied to an electromagnetic drive which produces an oscillating motion of the tube. The amplitudes...
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Thermal MassPrinciples of Operation Thermal mass flow meters employ the thermal dispersion principle whereby the rate of heat absorbed by a fluid flowing in a pipe or duct is directly proportional to its mass flow.
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Ultrasonic Flow MetersThe ultrasonic flow meter | sensor is a non-invasive volume flow measurement tool, which employs one of two basic principles of operation, namely transit-time and Doppler Effect technologies...
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Variable Area / Rotameter Flow MetersPrinciples of Operation Variable area flow meters operate on the principle that the variation in area of flow stream required to produce a constant pressure differential is proportional to the flow rate.
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Low FlowMeasurement of the flow at low fluid flow rates can be a problem if attempted using conventional flow sensors which have a limited range of flow conditions for which they are applicable.
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