Magnetic flow meterElectromagnetic flow meterElectromagnetic flow meter
A magnetic flow meter (mag meter, electromagnetic flow meter) is a transducer that measures fluid flow by the voltage induced across the liquid by its flow through a magnetic field. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux lines. The physical principle at work is electromagnetic induction. The magnetic flow meter requires a conducting fluid, for example, water that contains ions, and an electrical insulating pipe surface, for example, a rubber-lined steel tube.
If the magnetic field direction were constant, electrochemical and other effects at the electrodes would make the potential difference
difficult to distinguish from the fluid flow induced potential difference. To show this in modern magnetic flowmeters, the magnetic field is constantly reversed, cancelling out the electrochemical potential difference, which does not change direction with the magnetic field. This however prevents the use of permanent magnets for magnetic flowmeters.
and 28 Related for: Magnetic flow meter information
in the magneticflowmeter. Electrical conductors moving through a steady magnetic field, or stationary conductors within a changing magnetic field, will...
An ultrasonic flowmeter is a type of flowmeter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers...
flowing through the meter. Magneticflowmeters, commonly referred to as "mag meters", are technically a velocity-type water meter, except that they use...
unit of B, magnetic flux density, is the tesla (in SI base units: kilogram per second2 per ampere),: 21 which is equivalent to newton per meter per ampere...
compress a working gas, pentane. It is a liquid linear induction motor. Magneticflowmeter Magnetohydrodynamic drive Dannen, Gene (January 1997). "The Einstein–Szilard...
transformer MagneticflowmeterMagnetic Resonance Imaging Non Destructive Testing Winncy Y. Du, Resistive, Capacitive, Inductive, and Magnetic Sensor Technologies...
"magnetic induction", B) is the weber per square meter, or tesla. The most common way of representing a magnetic circuit is the resistance–reluctance model...
from about 25 microamperes to 10 milliamperes. Because the magnetic field is polarised, the meter needle acts in opposite directions for each direction of...
An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed...
ensures that the magnetic field is uniform so that the angular deflection of the pointer is proportional to the current. A useful meter generally contains...
positive displacement meter is a type of flowmeter that requires fluid to mechanically displace components in the meter in order for flow measurement. Positive...
magnetic moment is specified in terms of A·m2 (amperes times meters squared). A magnet both produces its own magnetic field and responds to magnetic fields...
concept of magnetic flux Magnetic circuit is a closed path in which magnetic flux flowsMagnetic flux quantum is the quantum of magnetic flux passing...
rotor current meter (RCM) is a mechanical current meter, an oceanographic device deployed within an oceanographic mooring measuring the flow within the world...
separator for powder flow - A guide to magnetic separation". Powderprocess.net. Retrieved 2022-04-20. Oberteuffer, J. (1974). "Magnetic separation: A review...
Capacitance meter Inductance meter Electricity meter Wattmeter Field mill See also the relevant section in the article about the magnetic field. Compass...
Hydrophone Microphone Pickup Seismometer Sound locator Air flowmeter Air–fuel ratio meter Blind spot monitor Crankshaft position sensor (CKP) Curb feeler...
A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed...
the volumetric flow rate of fluid in a closed tube. It belongs to a class of meters called variable-area flowmeters, which measure flow rate by allowing...
in a magnetic field. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby...
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into...
currents induced by the changing magnetic field resulting from the alternating current. The electric current flows mainly at the skin of the conductor...