Rotor dynamic balance de-weighting angle position measuring instrument and measuring method

The invention relates to a rotor dynamic balance de-weighting angle position measuring instrument and a measuring method. The angular position measuring instrument for rotor dynamic balance de-weighting comprises a base, a dial fixedly connected to the base, a rotor tray fixedly arranged on the dial, and a rotating rod rotatably arranged between the base and the dial, the angle position measuring instrument comprises a rotating rod, a pointer sliding rod which is vertically connected to the rotating rod, and a pointer which is parallel to the rotating rod and is vertically connected to the pointer sliding rod. The dynamic balance de-weighting angle position measuring device has the advantages of being simple in structure, good in operability, high in accuracy and the like, and the purpose of measuring the dynamic balance de-weighting angle position of the rotor of the small turbo expander can be achieved. 本发明涉及一种转子动平衡去重的角度位置测量仪和测量方法，所述转子动平衡去重的角度位置测量仪包括底座、固定连接于所述底座的刻度盘、固定设置于所述刻度盘上的转子托盘、可转动地设置于所述底座与所述刻度盘之间的旋转杆、