JPH01105876U - - Google Patents
Info
- Publication number
- JPH01105876U JPH01105876U JP181388U JP181388U JPH01105876U JP H01105876 U JPH01105876 U JP H01105876U JP 181388 U JP181388 U JP 181388U JP 181388 U JP181388 U JP 181388U JP H01105876 U JPH01105876 U JP H01105876U
- Authority
- JP
- Japan
- Prior art keywords
- output
- superconducting ring
- oscillator
- superconducting
- modulation coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 241000238366 Cephalopoda Species 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
Description
第１図はこの考案におけるＳＱＵＩＤセンサ部
の断面図と外部磁束の歪みの関係を示す図、第２
図は従来の超伝導磁力計の一実施例を示す構成図
、第３図はｄｃＳＱＵＩＤによる磁束検出方法の
説明図、第４図はｄｃＳＱＵＩＤにおける変調方
式の説明図、第５図は従来のＳＱＵＩＤセンサ部
の断面図と外部磁束の歪みの関係を示す図である
。
図において、１はジヨセフソン接合、２は超伝
導リング、３は帰還変調コイル、４は可変抵抗、
５は電池、６は増幅器、７は位相検波器、８はＲ
Ｆ発振器、９は帰還抵抗、１０はＳＱＵＩＤセン
サ部、１１は絶縁である。図中、同一符号は同一
または相当部分を示す。
Figure 1 is a cross-sectional view of the SQUID sensor section in this invention and a diagram showing the relationship between the distortion of external magnetic flux, and Figure 2
The figure is a block diagram showing an example of a conventional superconducting magnetometer, Fig. 3 is an explanatory diagram of a magnetic flux detection method using a dcSQUID, Fig. 4 is an explanatory diagram of a modulation method in a dcSQUID, and Fig. 5 is a conventional SQUID sensor. FIG. 4 is a diagram showing the relationship between a cross-sectional view of the part and distortion of external magnetic flux. In the figure, 1 is Josephson junction, 2 is superconducting ring, 3 is feedback modulation coil, 4 is variable resistor,
5 is a battery, 6 is an amplifier, 7 is a phase detector, 8 is R
F oscillator, 9 is a feedback resistor, 10 is a SQUID sensor section, and 11 is an insulation. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
、この超伝導リングとトランス結合する帰還変調
コイルと、上記超伝導リングの動作点を設定する
手段と、ＲＦ発振器と、上記超伝導リングの出力
を増幅器を介して入力し、上記ＲＦ発振器からの
出力を基準信号として位相検波する位相検波器と
を備え、上記位相検波器の出力及び上記ＲＦ発振
器の出力を上記超伝導リング、帰還変調コイルに
帰還させるようにした超伝導磁力計において、上
記帰還変調コイルを常伝導物体で構成したことを
特徴とする超伝導磁力計。 A superconducting ring having two Josephson junctions, a feedback modulation coil transformer-coupled to the superconducting ring, means for setting the operating point of the superconducting ring, an RF oscillator, and an amplifier for transmitting the output of the superconducting ring. a phase detector that performs phase detection using the output from the RF oscillator as a reference signal, and the output of the phase detector and the output of the RF oscillator are fed back to the superconducting ring and the feedback modulation coil. A superconducting magnetometer characterized in that the feedback modulation coil is made of a normal conducting object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP181388U JPH01105876U (en) | 1988-01-11 | 1988-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP181388U JPH01105876U (en) | 1988-01-11 | 1988-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105876U true JPH01105876U (en) | 1989-07-17 |
Family
ID=31202027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP181388U Pending JPH01105876U (en) | 1988-01-11 | 1988-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105876U (en) |
-
1988
- 1988-01-11 JP JP181388U patent/JPH01105876U/ja active Pending
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