Transducer Arrays for Rapid Data Acquisition of Ultrasonic Diffraction Tomography
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概要
- 論文の詳細を見る
We describe results of experiments and numerical simulations on transducer arrays and the apparatus used to drive them. Thses devices were fabricated for rapid data acquisition in ultrasonic diffraction tomography. The arrays are made by evaporation coating on piezoelectric ceramic substrates and the interval between the elements is using by the theory of acoustic holography. One of two similar arrays is used as the transmitter and the other is used as the receiver. In the experiment on a thin wire object it is proved that the interval is sufficient and that spline interpolation is effective, although the problem remains that the performance of each array element is different. The numerical simulation for the thick object shows, however, that the resolution of the reconstructed image is degraded. Because the element interval is inappropriate in this case.
- 社団法人応用物理学会の論文
- 1996-05-30
著者
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Nagai Keinosuke
Institute Of Applied Physics University Of Tsukuba
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Mizutani Koichi
Institute Of Engineering Mechanics And Systems University Of Tsukuba
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Yokoyama T
Department Of Applied Physics National Defense Academy
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Yokoyama Tomoki
Institute Of Applied Physics University Of Tsukuba
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Ohmaru M
Institute Of Applied Physics University Of Tsukuba
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Ohmaru Makoto
Institute of Applied Physics, University of Tsukuba
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Mizutani Koichi
Institute Of Applied Physics University Of Tsukuba
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