An electric measuring experimental apparatus based on DM3730 is designed on the basis of studying a new method of electric energy measurement on the condition of distorted signals. It verifies the rightness of the method. Hardware system structures are built based on a design method of on-chip dual-core CPU architecture and shared memory data. The working principles are expounded. Experiment instrument software system is designed and the wavelet frequency band power measurement algorithm is implemented using C programming language. On the experimental instrument

make the measure power experiment for the electric network distortion typical signals

the experimental results verify the correctness of energy measurement method under the distortion signal and the real time of sub-band wavelet transform algorithm. It provides a certain reference value for further research on electric energy metering under the condition of distortion signal device.