To satisfy the experiment request , the equipment generating magnetic field and the angular instrument are improved . for light wave from semiconductor laser is infrared wave in the experiment , the calibrating measurement utilizing visible light from he - ne laser is used . firstly the light path is adjusted using visible light roughly 在搭建系統時,根據實驗要求對磁場儀(小磁場時的穩定性)及摘要第2頁測角儀(測量精度)進行了改進;在調整光路時, (又據使用的紅外激光光源的特點,采用了先利用he ne激光器的可見光波粗略校準光路,然后換用半導體激光器精確校準光路的方法。