光抽运信号与线圈电流的关系

The dependence of the optical pumping signal on the current in coil

分别固定水平线圈和垂直线圈的电流后,在不同的光抽运信号下测定了铷样品吸收池的透射光强度与垂直线圈和水平线圈电流的关系曲线.得到了只有在正常光抽运信号下,透射光强度才与cos2θ成正比的结论.指出了只有在正常光抽运信号下,地磁场的垂直分量被垂直线圈的磁场抵消时,吸收池的透射光强度才最强.

The curve of the intensity of the transmitted light versus the current in vertical and horizontal coil is measured. It is obtained that the angular dependence of the signal varies as cos^2θ,and that only the typical optical pumping signal is maximum when the vertical magnetic field of the earth is cancelled by the magnetic field resulting from vertical coil.