An automated system for characterizing ultrasonic transducers usingpattern recognition |
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Authors: | Obaidat M.S. Ekis J.W. |
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Affiliation: | Dept. of Electr. & Comput. Eng., Missouri Univ., Columbia, MO; |
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Abstract: | The system consists of a 3D positioning mechanism, a motion controller, a pulser/receiver with gated-peak detector, a digitizing oscilloscope, a spectrum analyzer, and a host computer. Pattern recognition techniques were used to classify and reduce the dimensionality of the transducers. It was found that the K-means algorithm was the most successful algorithm for classifying the transducers, whereas the Baye's decision rule gave the worst performance. Feature reduction was found to be successful through the K-L transformation algorithm. Details of hardware and software implementation as well as the pattern recognition characterizing techniques and results obtained are presented. The characterizing techniques are compared |
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