angular instrument meaning in Chinese

测角仪

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
在搭建系统时，根据实验要求对磁场仪(小磁场时的稳定性)及摘要第2页测角仪（测量精度）进行了改进；在调整光路时，（又据使用的红外激光光源的特点，采用了先利用he ne激光器的可见光波粗略校准光路，然后换用半导体激光器精确校准光路的方法。