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Chinese Journal of Mechanical Engineering

Table 2 Parameters of excitation signal

From: Application of Nonlinear Lamb Wave Mixing Method for Residual Stress Measurement in Metal Plate

 

Mode

type

Frequency

(MHz)

Amplitude

(mm)

Delay

(s)

Cycle

f1

A0

1.26

0.05

1.45×10−5

40

f2

A0

0.32

0.05

0

10

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