Method for measuring longitudinal wave velocity of anisotropic material

The invention belongs to the technical field of the nondestructive detection, and relates to improvement of a method for measuring a longitudinal wave velocity of an anisotropic material by adopting an ultrasonic probe. The method is characterized in that a phased-array ultrasonic linear array probe is adopted to measure the longitudinal wave velocity. The method comprises the following steps: acquiring and storing ultrasonic echo data; acquiring a bottom wave propagation time data group of an ultrasonic echo signal; calculating a bottom wave propagation time average value data group; calculating sound wave shortest-path propagation angle data group and a sound wave shortest propagation path data group; calculating a longitudinal wave velocity data group corresponding to each sound wave shortest-path propagation angle; and establishing an analysis function of the longitudinal wave propagation velocity V and the sound wave propagation angle theta. According to the improved method for measuring the longitudinal wave velocity of the anisotropic material, the measurement steps are simplified, the measurement period is shortened, and the measurement precision is improved.