The angle signal of the dumbbell ball torsion is magnified using light lever.In order to enhance the sensitivity and accuracy, CCD is used to probe the light signal spot.

• 采用光杠杆对哑铃球扭转的角度信号进行放大，由CCD对光点位置信号进行探测,以提高分析仪灵敏度和精度；