| Project/Area Number |
15K14003
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Measurement engineering
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| Research Institution | Kanazawa Institute of Technology |
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Principal Investigator |
Adachi Yoshiaki 金沢工業大学, 先端電子技術応用研究所, 教授 (80308585)
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| Co-Investigator(Renkei-kenkyūsha) |
OYAMA Daisuke 金沢工業大学, 先端電子技術応用研究所, 准教授 (60569888)
YAMAGUCHI Takeshi 金沢工業大学, 先端電子技術応用研究所, 研究員 (20593437)
KIM Wook-Cheol 京都府立医科大学, 准教授 (50244603)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 計測システム / 微小磁場計測 |
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| Outline of Final Research Achievements |
An imaging method for weak magnetic field distribution using room-temperature (RT) magnetic sensors such as magnetic impedance sensors or orthogonal-type fluxgate magnetometers was developed. To improve the magnetic field resolution of the RT sensors, especially in the low-frequency band, we implemented the idea of vibrating sample magnetometry for the measurement system. When a minute mechanical vibration was given to the sample and magnetic signals modulated by the vibration frequency was detected, the effects of 1/f noise of the sensor and the environmental low-frequency band noise were suppressed and a weak magnetic charge distribution was obtained without magnetic shielding. Furthermore, the spatial resolution was improved when the signals were demodulated at the secondary harmonic frequency of the vibration. The sub-nano tesla magnetic imaging by RT sensors was successfully established. A multi-channel probe provided the transient of the magnetic image of time-variant current.
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