A new method for measuring transient rotation speed and torque for motor has been presented in this paper.After being processed by empirical mode decomposition(EMD) method
the original data are decomposed into a number of intrinsic mode function components and a residue representing the variation trend of signals.And after a description of the principles of algorithms for empirical mode decomposition
the transient rotation speed and torque of electric motor have been processed using EMD method.Experimental results show that the EMD method is effective in obtaining the real curve of transient rotation speed and torque of electric motor.