Moving positioning device for particle image velocimetry

The invention relates to a moving positioning device for particle image velocimetry and belongs to the technical field of hydraulic measurement. The device is used for installing a laser and a PIV camera for particle image velocimetry. The device comprises a supporting frame, a lifting system, a moving positioning platform, a laser mounting port, and two camera mounting platforms; the lifting system is mounted on the supporting frame and moves in the vertical direction; the moving positioning platform is mounted on the lifting system, moves vertically along with the lifting system, and moves horizontally in the length direction; a hollow-out area set in the middle of a panel of the moving positioning platform is used as the laser mounting port and for mounting PIV laser sheet light source; the camera mounting platforms comprises two groups of camera mounting platforms which are arranged symmetrically at both sides of the moving positioning device and are used for supporting PIV cameras; the laser mounting por