saturation magnétique - traduzione in francese
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saturation magnétique - traduzione in francese

(IN SOME MAGNETIC MATERIALS) STATE REACHED WHEN AN INCREASE IN APPLIED EXTERNAL MAGNETIC FIELD H CANNOT INCREASE THE MAGNETIZATION OF THE MATERIAL FURTHER, SO THE TOTAL MAGNETIC FLUX DENSITY B MORE OR LESS LEVELS OFF
Magnetic saturation; Saturation magnetization
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  • Due to saturation, the magnetic permeability μ<sub>f</sub> of a ferromagnetic substance reaches a maximum and then declines

saturation magnétique      
n. magnetic saturation

Definizione

Magnetic Saturation
The maximum magnetic force which can be permanently imparted to a steel bar. A bar may be magnetized beyond this point, but soon sinks to it. The magnetism produced in a bar is prevented from depolarization by the retentivity or coercive force of the bar. The higher the degree of magnetization the greater the tendency to depolarization. It is also defined as the maximum intensity of magnetism produced in a paramagnetic substance by a magnetic field as far as affected by the permeability of the substance in question. The more lines of force passed through such a substance the lower is its residual permeability. It is assumed that this becomes zero after a certain point, and then the point of saturation is reached. After this point is reached the addition of any lines of force is referred entirely to the field and not at all to the permeability of the substance. But such a zero is only definable approximately.

Wikipedia

Saturation (magnetic)

Seen in some magnetic materials, saturation is the state reached when an increase in applied external magnetic field H cannot increase the magnetization of the material further, so the total magnetic flux density B more or less levels off. (Though, magnetization continues to increase very slowly with the field due to paramagnetism.) Saturation is a characteristic of ferromagnetic and ferrimagnetic materials, such as iron, nickel, cobalt and their alloys. Different ferromagnetic materials have different saturation levels.