JPS5524653A - Magnetic field detector using squid - Google Patents
Magnetic field detector using squidInfo
- Publication number
- JPS5524653A JPS5524653A JP9783478A JP9783478A JPS5524653A JP S5524653 A JPS5524653 A JP S5524653A JP 9783478 A JP9783478 A JP 9783478A JP 9783478 A JP9783478 A JP 9783478A JP S5524653 A JPS5524653 A JP S5524653A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- ring
- magnetic flux
- inductively coupled
- squid
- 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.)
- Granted
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Abstract
PURPOSE: To make it possible to detect a zero magnetic field or a weak magnetic field by using a SQUID (Superconducting Qauntum Interference Devices) magnetic flux meter.
CONSTITUTION: A SQUID device SQ is equipped with a superconducting ring 10 having a Josephson connection 11 at its one point, and a coil 12 is inductively coupled to the ring 10 and connected in parallel with a capacitor 13 thereby to constitute an IC tank circuit 4. This circuit 4 receives the power from a high frequency power source 16 of the SQM electric circuit unit Mt of the magnetic flux meter so that it becomes resonant therewith. An input coil 15 is also inductively coupled to the ring 10 so that the electrostatic current searched by a magnetic flux search coil 5 in a low temperature bath LY is introduced into the input coil 15 to apply the magnetic flux due to the current flowing through the coil 15 to the ring 10. The search coil 5 is inductively coupled to an area varying ring 1 so that a magnetic flux proportional to a variation in the flux, if any, is generated in the coil 5. As a result, the superconducting ring 10 is operated to effect addition to the ϕ m.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9783478A JPS5524653A (en) | 1978-08-11 | 1978-08-11 | Magnetic field detector using squid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9783478A JPS5524653A (en) | 1978-08-11 | 1978-08-11 | Magnetic field detector using squid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5524653A true JPS5524653A (en) | 1980-02-21 |
JPS5757666B2 JPS5757666B2 (en) | 1982-12-06 |
Family
ID=14202736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9783478A Granted JPS5524653A (en) | 1978-08-11 | 1978-08-11 | Magnetic field detector using squid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524653A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139048A (en) * | 1982-02-15 | 1983-08-18 | Shimadzu Corp | Measuring method for displacement in testing of very low temperature material |
-
1978
- 1978-08-11 JP JP9783478A patent/JPS5524653A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139048A (en) * | 1982-02-15 | 1983-08-18 | Shimadzu Corp | Measuring method for displacement in testing of very low temperature material |
JPH0316616B2 (en) * | 1982-02-15 | 1991-03-06 | Shimadzu Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS5757666B2 (en) | 1982-12-06 |
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