eddy current


Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.
Related to eddy current: Hysteresis loss

eddy current

An MRI term for an induced spurious electrical current produced by time-varying magnetic fields, which can cause image artefacts and degrade overall magnet performance.
Mentioned in ?
References in periodicals archive ?
Having purchased Master Magnets Eddy Current Separators in the past, we knew that we can trust in the quality of their manufacture and service, however the demand from our clients for a mobile ECS unit was increasing all the time.
Zetec's MIZ-200A eddy current array instrument features the surface array flex probe with 128 independent channels.
A] is the magnetic vector potential, then the mathematical model of the eddy current results can be described by means of the complex magnetic vector potential [bar.
The proposed transmission architecture for EVs is a seamless AMT using an eddy current torque bypass clutch, as shown in Figure 4.
Owing to the eddy current in the aircraft skin, Figure 7 differs from Figure 5 obviously.
There are two reasons for permanent magnet to generate eddy current losses [10-12].
The Eddy Current Array (ECA) is a flexible circuit board imprinted with a two-dimensional array of transducers which is powered via a laptop USB-connection.
Recent studies (8), (9) indicate that eddy current testing, among known physical test techniques (ultrasonic, optical, electromagnetic, thermal, and radiation), is a promising technology for developing an on-train real-time rail inspection system.
While hysteresis loss density depends largely on frequency, material and flux density, the eddy current loss density is proportional to the frequency squared, making it much more susceptible to slot harmonic components, which could be several times higher than the operating frequency.
This eccentric rotor concentrates its eddy current forces into a zone of separation at the end of the belt.
Its operating principle is based on the detection of high-frequency inductivity which generates eddy current in an electrically conducting target.
However, one inherent disadvantage of magnetically driven pumps is eddy current losses in the containment shell that are caused by the rotation of the magnetic field due to the magnetic coupling and are inevitable when the rear containment shell is made from metal.