The invention discloses a method for improving the Lamb wave phased array focusing detection speed. The method comprises the steps that a first sensor array and a second sensor array are arranged on the surface of a detected structure in the vertical direction and the horizontal direction; the first sensor array generates a first excitation signal to simultaneously detect any two symmetric focuseson the surface of the detected structure by taking the first sensor array as a symmetric axis, and when the first sensor array receives a first echo signal, at least one of the two symmetric focusesis a damage point; the second sensor array generates a second excitation signal to respectively detect the symmetric focuses, and when the second sensor array receives a second echo signal from a certain focus in the symmetric focuses, the focus is a damage point; and the energy of the damage point is calculated, and the damage degree of the damage point is determined according to the energy.

Method for increasing Lamb wave phased array focusing detection speed

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Method for increasing Lamb wave phased array focusing detection speed