High-precision preform core rod bubble testing method and device and medium

The invention discloses a high-precision preform core rod bubble testing method and device and a medium, and the method comprises the following steps: obtaining physical parameter information of a preform core rod, and calling a theoretical wave velocity value analysis algorithm based on the physical parameter information to obtain ultrasonic wave transmission wave velocity theoretical data; performing ultrasonic transmission test on the preform core rod to obtain ultrasonic transmission test data; calling an actual wave velocity value analysis algorithm based on the theoretical data of the ultrasonic transmission wave velocity and the ultrasonic transmission test data to obtain actual data of the ultrasonic transmission wave velocity; analyzing a bubble test result of the preform core rod based on the theoretical data of the ultrasonic transmission wave velocity and the actual data of the ultrasonic transmission wave velocity; carrying out algorithm correction on the theoretical wave velocity value analysis