Air inlet flow monitoring system of arc heater and use method of air inlet flow monitoring system

The invention provides an arc heater air inlet flow monitoring system and a using method thereof.The arc heater air inlet flow monitoring system comprises an arc heater, an air supply device, a pressure collecting device, a signal processing device and a control device, the air supply device is connected with the arc heater, the pressure collecting device is connected with the air supply device and the arc heater, and the signal processing device is connected with the control device. The pressure collecting device is further connected with the signal processing device, the signal processing device is connected with the control device, and the control device is connected with the arc heater and the gas supply device. Through a pressure acquisition device and a signal processing device, whether the gas adjusting capacity of a pressure adjusting valve on a gas supply pipeline is normal or not is determined, whether the error between the size of a sonic nozzle on each gas inlet channel installed on an arc heater