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Ultrasonic Measurements Research: Improved Acoustic Emission Methods.
NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD
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Developments on new transducers for high fidelity measurement of normal and tangential displacement are summarized. Improvements in calibration techniques are outlined. The transducer aperture effect is measured and compared to theories. Keywords Acoustic Emission Transducer Calibration Aperture Deconvolution Greens Function Surface Pulse Rayleigh Wave Elastic Plate.
APPROVED FOR PUBLIC RELEASE