摘要
用三组相同的亥姆霍兹线圈按照设计的构造图,做出三个垂直方向上磁场强度已知的三分量磁场发生器。通入线圈的电流是采用精度较高的可变恒流源,以减少温度等外界因素引起的误差。把恒流源接入三组线圈中,通过调节恒流源中的电阻,改变恒流源产生的电流的大小,从而控制了产生的三分量磁场的强度。
The three-component magnetic field generator of orthogonal directions with the known magnetic field intensity is made with the same three groups of Helmholtz coil in the light of structural map.The electric current passed the coil is the variable constant flow source with high precision so as to reduce errors from temperature and other external factors.We conduct constant flow source to the three groups of coil to change the current of constant flow source by adjusting the resistance,so that we can control the strength of three component magnetic field.
出处
《长春大学学报》
2010年第6期56-58,共3页
Journal of Changchun University
关键词
三分量
恒流源
亥姆霍兹线圈
three-component
constant flow source
Helmholtz coil
