2011 Fiscal Year Final Research Report
Development of the mobile SQUID magnetometers
| Project/Area Number |
21560434
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Muroran Institute of Technology |
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Principal Investigator |
MATSUDA Mizushi 室蘭工業大学, 大学院・工学研究科, 教授 (20261381)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 超精密計測 / 超伝導材料・素子 / 電子デバイス・機器 / 計測工学 |
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| Research Abstract |
The portable magnetometer system with a high-Tc SQUID sensor attached on a sapphire rod, being cooled by thermal conduction, was developed. We have designed and fabricated magnetometers with series-SQUID arrays to achieve higher S/N ratio compared to that for a single SQUID. We found that improvement of modulation voltage for more than two SQUIDs is small probably due to the wide spread of critical currents and the phase-incoherence of voltage-flux characteristics among SQUIDs.
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