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词汇 Helmholtz coil
分类 英语词汇 英语翻译词典
释义

Helmholtz coil

中文百科

亥姆霍兹线圈

一座装配了亥姆霍兹线圈的物理仪器。
亥姆霍兹线圈示意图。
在亥姆霍兹线圈的二等分面的磁场线。注意到在两个线圈之间的磁场近似均匀(在这电脑绘图里,线圈的中心轴是纵向的)。
沿着线圈中心轴(z-轴)的磁场。与两个线圈同距离的中心位置的z-坐标为0。

亥姆霍兹线圈Helmholtz coil)是一种制造小范围区域均匀磁场的器件。由于亥姆霍兹线圈具有开敞性质,很容易地可以将其它仪器置入或移出,也可以直接做视觉观察,所以,是物理实验常使用的器件。因德国物理学者赫尔曼·冯·亥姆霍兹而命名。

英语百科

Helmholtz coil 亥姆霍兹线圈

A Helmholtz coil
Helmholtz coil schematic drawing
A beam of cathode rays in a Cathode Ray Tube bent into a circle within a stabilized Helmholtz Coil.
Magnetic field lines in a plane
bisecting the current loops. Note the field is approximately uniform in between the coil pair. (In this picture the coils are placed one beside the other: the axis is horizontal.)

A Helmholtz coil is a device for producing a region of nearly uniform magnetic field, named after the German physicist Hermann von Helmholtz. It consists of two solenoid electromagnets on the same axis. Besides creating magnetic fields, Helmholtz coils are also used in scientific apparatus to cancel external magnetic fields, such as the Earth's magnetic field.

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