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Showing 1 to 4 of 4 for “"Phased Array Beamsteering"”.
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Phased Array Beamsteering in Composite Laminates for Guided Wave Structural Health Monitoring
<p>In this study a guided wave phased array beamsteering approach is applied to composite laminates. Current beamsteering algorithms derived for isotropic materials assume omnidirectional wave propagation. Due to inherent anisotropy in composites, guided wave propagation varies with direction and …
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A Two -Dimensional Amplitude -Steered Array for Real -Time Volumetric Acoustic Imaging
… imaging is difficult due to problems with array construction and due to the slow speed of data collection. In 1976, a linear amplitude-steered array was introduced that uses reduced electronics to steer a monofrequency beam. The current study examines how the linear amplitude-steered array …
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A Comparison of Beamforming Characteristics in Isotropic and Composite Plate Structures for use in Structural Health Monitoring
… monitoring in plate-like simple structures using phased array beamsteering of guided Lamb waves is useful in damage detection and evaluation efforts. Lamb waves can be effectively used for beamsteering using a linear array. The experimentation primarily focuses on beamsteering in the aluminum …
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Phased Array Damage Detection and Damage Classification in Guided Wave Structural Health Monitoring
… to obtain better signal interpretations. Phased array beamsteering is an effective means for damage detection in guided Lamb wave SHM systems. Using this method, the wave energy can be focused at localized directions or areas by controlled excitation time delay of each array element. In …