| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
Copolymer of vinylidene fluoride and trifluoroethylene [P(VDF/TrFE)] has the largest coupling factor (kt=0.3) among piezoelectric polymers.Furthermore, it is possible to transmit and receive the ultrasonic waves at MHz range,because of that low acoustic impedance of P(VDF/TrFE) transducer. In this study, Acousticimaging of the substance inside was tried using P(VDF/TrFE) transducers made by asolution casting method for use in the MHz range in air. As the results, acoustic imagingusing the air coupled P(VDF/TrFE) transduces at 2.5 MHz had succeeded to display a chipof IC (ROCKWELL/11229-12).
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