Creation of electromagnetic sensor using the singular fields in joints
| Project/Area Number |
26289003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
Koguchi Hideo 長岡技術科学大学, 工学(系)研究科(研究院), 教授 (90143693)
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| Co-Investigator(Kenkyū-buntansha) |
Luangarpa Chonla 長岡技術科学大学, 工学(系)研究科(研究院), 助教 (00751968)
倉橋 貴彦 長岡技術科学大学, 工学(系)研究科(研究院), 准教授 (00467945)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
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| Keywords | 三次元圧電接合体 / 特異場 / 界面 / 特異場の強さ / 保存積分法 / センサ / 電界 / 電圧 / 電場 / 機械材料・材料力学 / 圧電特異場 / 圧電接合体 / 保存積分 / 電束密度 / ナノメカニックス / 電気的センサ / 特異電気変位場 / 特異応力場 / センサー |
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| Outline of Final Research Achievements |
The object of this study is to obtain the guidelines on manufacture of high sensitive electromagnetic sensors by utilizing the characteristics of singular fields of piezoelectric displacements at the vertex in three-dimensional piezoelectric joints. Large singular fields of stress and electric displacement occur around the edge of interface including the outside of joints for compressive stress in the vertical direction of the interface, and the intensity of electric displacement near the edge of interface in the joint is larger that in single-phase materials. When the value of dielectric constant in the piezoelectric material increases, the intensity of singularity increases. In manufacturing the piezoelectric joints, it is desirable that a resin with curing temperature of room temperature or below Curie’s temperature should be used. In experiments, the voltage between the upper and lower surfaces in the joints is higher than that in single-phase materials.
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Report
(4 results)
Research Products
(43 results)
