Measuring device for testing high-temperature broadband wave transmission rate of wave-transmitting material in arc wind tunnel

The invention discloses a device for testing and measuring the high-temperature broadband wave transmission rate of an arc wind tunnel wave-transmitting material. The device comprises an arc heater, a spray pipe, a receiving antenna, a transmitting antenna, a transmission cable, a spectrum monitoring device, a vector network analyzer, a thermal infrared imager and a vacuum test cabin, the receiving antenna and the transmitting antenna are positioned in the vacuum test cabin; the spectrum monitoring device is connected with the cathode of the arc heater; and a signal output end and a signal input end of the vector network analyzer are respectively connected with the transmitting antenna and the receiving antenna through transmission cables. According to the invention, the low-ablation arc heater is utilized to provide the simulation capability of pure airflow under the aerodynamic heating condition of the wave-transparent material, and meanwhile, the microwave measurement system is utilized to realize the real