Wind tunnel continuous variable angular motion dynamometer test data acquisition system

The utility model discloses a wind tunnel continuous variable angular motion dynamometer test data acquisition system. The wind tunnel continuous variable angular motion dynamometer test data acquisition system comprises an upper computer, a control card, a driver, a servo motor, a PLC counter and a VXI data acquisition system. The upper computer is used to calculate the controlled pulsed quantity through a master control program and send the controlled pulsed quantity to the control card, the control card is used to output a corresponding pulse into the driver, and the corresponding pulse is decoded into an alternating signal by the driver and transmitted to the servo motor, so that the control of the servo motor can be realized. Meanwhile, a signal which is fed back by the servo motor is sent back to the driver, a feedback signal is separated from the signal at the position of the driver and sent into the PLC counter, the PLC counter is used to perform counting from a given point, and pulses are outputted b