| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
In this study, a novel technique (encoding stacked aperture technique) to improve greatly the performance of a polymer ultrasonic probe was proposed. This is a technique which achieves higher performance of an ultrasonic transducer by stacking piezoelectric polymer film after controlling the polarity direction of the dipole. With this technique, an M-sequence pulse compression ultrasonic probe which an M-sequence modulated wave can transmit only by impulse driving was devised, and the usefulness of this technique was demonstrated. Furthermore, by the development of another stacked probe which consists from piezoelectric polymer films of different thickness, not only chirp-wave transmission but the demodulation of pulse compression has become possible only by the probe.
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