Introduces the control system of metro regenerative braking energy absorption device,it first proposes a design program using the dual-CPU architecture based on ARM + DSP;and then designs the hardware of ARM board and DSP board;finally designs the electrical control circuit to achieve the disconnection and work of device which is controlled by the control system.

The relationship between the moisture content in different textile materials and the shielding efficiency and power absorption of microwave was studied with self-made waveguide-network analyzer.