Propeller lateral exciting force measuring device

The invention relates to a propeller lateral exciting force measuring device which comprises a lateral exciting force sensor assembly, a transmission shaft system, a water-cooled motor, a slip ring, a signal processing module, a coupler, an encoder, a first O-shaped ring and a second O-shaped ring. The lateral excitation force sensor assembly is fixedly connected with the transmission shaft system, and a first O-shaped ring is arranged in the middle. The transmission shaft system is fixedly connected with the water-cooled motor, and a second O-shaped ring is arranged in the middle. A transmission shaft of the transmission shaft system is connected with a water-cooled motor driving shaft through a coupler. And the water-cooled motor is fixed with the boat model through the first bearing seat and the second bearing seat. The propeller is fixedly connected with the lateral excitation force sensor assembly. Four two-component piezoelectric sensors are adopted in the lateral exciting force sensor assembly, and mea