| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Ultrathin electret less than 4 μm which exhibited high electric charge retention and fine patterned by laser irradiation was obtained using PTFE and silica agglomerates. It is considered that this electret could contribute to the performance improvement of an electret condenser sensor (ECS). On the other hand, an airborne ultrasonic sensor array was fabricated in a cylindrical shape using flexible ECS using a silica aggregate electret and demonstrated the excellent performance in object position detection in omni-directions, especially at a short distance. In addition, it was shown that this ECS can also improve the performance by frequency modulation called pulse compression method.
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