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单词 Relative Permeability
释义

Relative Permeability

中文百科

磁导率 Permeability (electromagnetism)

(重定向自Relative Permeability)

在电磁学中,磁导率是一种材料对一个外加磁场线性反应的磁化程度。磁导率通常用希腊字母μ来表示。该形式由奥利弗·赫维赛德于1885年9月创造使用。

在国际单位制单位中,磁导率的单位是亨利每米(H m),或牛顿每安培的平方(N A)。常数值  \mu_0 为磁场常数或真空磁导率,并有明确定义 值 \mu_0 = 4π×10 N·A。

英语百科

Permeability (electromagnetism) 磁导率

(重定向自Relative Permeability)
Simplified comparison of permeabilities for: ferromagnets (µf), paramagnets (µp), free space (µ0) and diamagnets (µd)
Magnetisation curve for ferromagnets (and ferrimagnets) and corresponding permeability
Hysteresekurve

In electromagnetism, permeability is the measure of the ability of a material to support the formation of a magnetic field within itself. Hence, it is the degree of magnetization that a material obtains in response to an applied magnetic field. Magnetic permeability is typically represented by the (italicized) Greek letter µ. The term was coined in September 1885 by Oliver Heaviside. The reciprocal of magnetic permeability is magnetic reluctivity.

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更新时间:2025/6/20 22:31:22