Water cavitation pressure measuring device

The utility model provides a water cavitation pressure measuring device, which belongs to the technical field of cavitation experiments and comprises a box body, a measuring cylinder body with a piston cavity is arranged in the box body, a connecting rod is connected to the box body right above the measuring cylinder body, and a dynamometer is connected to the lower end of the connecting rod. Thedynamometer is connected with a piston which extends downwards into the piston cavity and can move up and down in the piston cavity, the measuring cylinder body below the piston is connected with a connecting pipe extending out of the box body, the connecting pipe is provided with a switch valve, the bottom of the box body is connected with a camera, the camera can shoot the piston cavity, and themeasuring cylinder body is further provided with a drainage pipe extending out of the box body; the cavitation pressure testing device is low in cost, small in occupied area and good in cavitation experiment effect, and visua