Abstract:In order to improve the efficiency of single propeller driving test in the wind tunnel, a single propeller driving test system was designed and built. The composition of the system was described in detail. The system design was introduced from four aspects: main control platform selection, signal interface circuit design, driver control circuit and feedback circuit. The results show that the system has high control accuracy, good electromagnetic compatibility and high degree of automation, which can greatly improve the test efficiency. The test preparation time has been shortened from 48 hours to 12 hours, and successfully applied in many tests.