What is magnetic saturation hysteresis? What is magnetic saturation?

Magnetic saturation is a physical property of a ferromagnetic material. When the strength of the external magnetic field slowly increases, the magnetic flux density (which you can understand as magnetism) inside the ferromagnetic material also slowly increases. When the magnetic field strength reaches a certain level and is strengthened, the magnetic flux density of ferromagnetic materials increases more and more slowly.

At this point, we can understand this phenomenon as magnetic saturation. If you look up the hysteresis loop on the Internet, you can see that it is not a straight line, but a curve similar to an S-shape. When the external magnetic field strength is strengthened, the magnetic flux density of ferromagnetic materials is also strengthened. When the magnetic field strength drops to 0, the magnetic flux density in the ferromagnetic material does not decrease to a minimum, which is remanence.

And this phenomenon is called hysteresis. The phenomenon of hysteresis is another characteristic of ferromagnetic materials.

Inductive intensity b is the number of magnetic field lines perpendicular to the unit area; Magnetic flux is the product of the magnetic induction intensity b and the area, that is, =bs, b= s, and the flux is the total magnetic flux of the link of the conductive coil or current loop, that is, =n =li, =li n, substituting b = s = li n s, n turns, the area of s is unchanged, and b is also unchanged after magnetic saturation, if the current increases again, l will decrease, knowing that there is no inductance, it is equivalent to a wire, that is, it loses its inductance. Or, the permeability U=B H, B=Li N S, H=Nik(n turns, i current, k coefficient), then U=Li N S Nik, L=Un 2sk, the number of turns n does not change, the area S does not change, the coefficient K does not change, and the permeability u will be smaller with the increase of current, when saturation the permeability u tends to 1, and then increases, the permeability u tends to be close to 0, from the formula, the inductance is proportional to the permeability, that is, the current has been increasing, the inductance value is also close to 0, there is no inductance value, and the inductance is lost.

The phenomenon of magnetic saturation is a physical property of magnetic materials, which refers to the fact that due to the limitation of the physical structure of the magnetic permeable material, the magnetic flux through the brigade cannot be increased indefinitely, so as to maintain a certain state.

Magnetic saturation is a physical property of a magnetic material, and after magnetic saturation is generated, it is harmful in some occasions but sometimes beneficial in some occasions. For example, the magnetic saturation regulator uses the magnetic saturation characteristics of the core to achieve the purpose of stabilizing the voltage. If the added voltage of the power transformer greatly exceeds the rated voltage, the current will increase dramatically, and the transformer will soon heat up and burn out.

Suppose there is an electromagnet, when a unit current is passed, the magnetic field induction intensity is 1, when the current increases to 2, the magnetic induction intensity will increase to, when the current is 5, the magnetic induction intensity is 7, but when the current reaches 6, the magnetic induction intensity is still 7, if the current is further increased, the magnetic induction intensity is 7 and no longer increases, then it is said that the electromagnet produces magnetic saturation.

Inductors with magnetic cores have the problem of magnetic saturation, and adding ferrite or other magnetic permeable materials to the core of the inductor can take advantage of its high permeability to increase the inductance, reduce the number of turns, reduce the volume and improve the efficiency. However, due to the limitation of the physical structure of the permeable material, the passing magnetic flux cannot be increased indefinitely. The magnetic flux through a certain volume of permeable material will not increase until a certain amount, no matter how much current or turns you increase, you will reach magnetic saturation.

Especially in circuits with DC current, if the DC current has saturated the core, the AC component of the current will no longer be able to cause the flux to return to the pre-town. The inductor loses its purpose.

The explanation of the word hysteresis is: in the process of magnetization and demagnetization, the change in the magnetization or magnetic induction intensity of the ferromagnetic mass always lags behind the change in the strength of the magnetic field.

The explanation of the word hysteresis is: in the process of magnetization and demagnetization, the change in the magnetization or magnetic induction intensity of the ferromagnetic mass always lags behind the change in the strength of the magnetic field. The pinyin is:

cí zhì。The structure is: magnetic (left and right structure) hysteresis (left and right structure).

The phonetic pronunciation is:

What is the specific explanation of hysteresis, we will introduce it to you through the following aspects:

1. Online explanation [click here to view the details of the plan].

Hysteresis refers to the phenomenon that the magnetization of ferromagnetic materials (e.g., iron) depends not only on the magnetic field strength of the outer grip cavity of the obscure ridge, but also on the original magnetization strength during the magnetization and demagnetization of ferromagnetic physical materials (e.g., iron). When an applied magnetic field is applied to a ferromagnetic mass, the dipoles of its atoms are arranged according to the applied field.

Even when the admixture field is evacuated, the partial arrangement remains: at this point, the material is magnetized. Once magnetized, its magnetism will continue to be retained.

To degauss, simply apply a magnetic field in the opposite direction. This is how hard drives' memories work.

Idioms about hysteresis.

Unexpectedly, the analysis of the stagnation is uneven, and the unexpectedness of enlightenment is stagnation, and the stagnation is disdainful of people, and the long night is long, and the grass is stagnant, and there is no name.

Words about hysteresis.

Ignoring the snow stagnation, analysing the annoyance, stagnation, and stagnation, the grass house fled in a hurry, stagnated, Bo Dao, no sedan chair, no sedan chair, no name, no money, not enough.

The phenomenon of hysteresis is referred to as hysteresis. When the ferromagnet is magnetized to a saturated state, if the magnetic field strength (h) is gradually reduced from the maximum value, the magnetic induction intensity (symbol b) does not return from the original path, but decreases along a curve slightly higher than the original path, when h=0, b is not equal to zero, that is, the change of b in the magnetic body lags behind the change of h, this phenomenon is called hysteresis phenomenon.

Magnetic substances have a tendency to retain their magnetic properties, and the change of magnetic induction intensity b always lags behind the change of magnetic field strength h, which is the phenomenon of hysteresis.

According to the different hysteresis loops, magnetic substances can be divided into three types: hard magnetic substances, soft magnetic substances and moment magnetic substances.

The phenomenon of hysteresis is widely recognized in ferromagnetic materials. When an applied magnetic field is applied to a ferromagnetic substance, the dipoles of its atoms are arranged on their own according to the applied field. Even when the field was evacuated, the partial arrangement remained.

The material is magnetized, and its magnetic properties are retained. When degaussing is required, a magnetic field in the opposite direction is applied.

In interpersonal psychology, people magnetize a person's personality to attract others, and after the person leaves, the affected person still retains the affected personality traits, which is a psychological phenomenon called hysteresis.

Magnetization effect, in interpersonal psychology, people take a person's personality to magnetize others to attract others, and after the person leaves, the affected person still retains the affected personality traits, which is a psychological phenomenon called hysteresis.

When the excitation current of the motor increases, the magnetic induction intensity of the motor core no longer increases significantly, and when the applied voltage is higher than the rated voltage of the motor, the motor will be magnetically saturated.

The magnetic induction intensity b is the number of magnetic field lines perpendicular to the unit area; Magnetic flux is the product of the magnetic induction intensity b and the area, that is, =bs, b= s, and the flux is the total magnetic flux of the link of the conductive coil or current loop, that is, =n =li, =li n, substituting b = s = li n s, n turns, the area of s is unchanged, and b is also unchanged after magnetic saturation, if the current increases again, l will decrease, knowing that there is no inductance, it is equivalent to a wire, that is, it loses its inductance. Or, the permeability U=B H, B=Li N S, H=Nik(n turns, i current, k coefficient), then U=Li N S Nik, L=Un 2sk, the number of turns n does not change, the area S does not change, the coefficient K does not change, and the permeability u will be smaller with the increase of current, when saturation the permeability u tends to 1, and then increases, the permeability u tends to be close to 0, from the formula, the inductance is proportional to the permeability, that is, the current has been increasing, the inductance value is also close to 0, there is no inductance value, and the inductance is lost.

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