The embodiments of this specification provide a method,
system, equipment and medium for measuring the deformation of a high-speed rotating blade, wherein the
system includes a blade, a
phase locking device and a computer; the blade is arranged on a hub, and the hub is controlled by a computer to drive the blade to rotate; the
phase locking device includes an
infrared photoelectric trigger switch and a camera group connected to a synchronous controller, and before the experiment, the synchronous controller controls each camera of the camera group to synchronously
shoot the blade to generate image group one, and sends it to the computer; during the experiment, the blade rotates, and the computer controls the
infrared photoelectric trigger switch to send an
infrared beam to the blade, and after receiving the reflected beam, sends a high-level pulse
signal to the synchronous controller, and the synchronous controller controls each camera of the camera group to synchronously
shoot the blade to generate image group two and send it to the computer; the blade displacement is obtained by calculation by the computer.