Studies application of matric method to deal with fixed point rotation of rigid body, and infers instantaneous axis equation.
介绍了用矩阵讨论刚体定点转动瞬轴的方法，在此基础上推导出转动瞬轴方程。
2
Introduces a measurement method of instantaneous speed of rotation and dynamic process of speed of electric machine by means of single chip microcomputer and photoelectric transducer.
介绍了一种利用单片机和光电转速传感器来测量电机瞬态转速及电机转速变化过程的方法。
3
According to theorem of motion of centre of mass and theorem of moment of momentum about centre of mass, we derive the theorem of moment of momentum about instantaneous center of rotation.