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Matrix switched phased array ultrasonic guided wave system
Matrix switched phased array ultrasonic guided wave system
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机译:矩阵开关相控阵超声导波系统
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摘要
A system for nondestructively evaluating a sample. An ultrasonic array is used for directing and receiving guided waves to the sample. A matrix switch is used to sequence through the array of transducers and reconstruct the modal waveform by introducing the appropriate time delay for the desired mode. The sequencing sweeps through the dispersion space of all possible guided wave modes for a given plate. The sequencing is used to determine the parameters (frequency and time delay) that will excite the optimal guided wave mode for inspecting a given structure.
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