发明名称 |
Superconductor type radio frequency with adjustable inductance magnetic flux measuring circuit |
摘要 |
An RF magnetic flux measuring circuit uses a SQUID fluxmeter of which the input and output characteristics establish a periodic function, and in which a pick-up coil for picking up desired RF magnetic flux and an input coil of the SQUID fluxmeter are connected to form a closed loop which is a superconducting loop for transferring the magnetic flux to the SQUID. There is also provided an inductance adjusting device which adjusts the inductance of the superconducting loop to limit the magnetic flux that crosses the SQUID fluxmeter within a range of a single-valued function in said input and output characteristics.
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申请公布号 |
US5021739(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890426188 |
申请日期 |
1989.10.25 |
申请人 |
HITACHI, LTD. |
发明人 |
YOKOSAWA, KOICHI;KOHNO, HIDEKI |
分类号 |
A61B5/055;G01R33/035;G01R33/24;G01R33/36 |
主分类号 |
A61B5/055 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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