FR2434400A1 - Fluxmetre supra-conducteur a interference d'un quantum de flux - Google Patents

Fluxmetre supra-conducteur a interference d'un quantum de flux

Info

Publication number
FR2434400A1
FR2434400A1 FR7905893A FR7905893A FR2434400A1 FR 2434400 A1 FR2434400 A1 FR 2434400A1 FR 7905893 A FR7905893 A FR 7905893A FR 7905893 A FR7905893 A FR 7905893A FR 2434400 A1 FR2434400 A1 FR 2434400A1
Authority
FR
France
Prior art keywords
interfering
super
superconducting
quantum
flux meter
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
Application number
FR7905893A
Other languages
English (en)
Other versions
FR2434400B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tohoku University NUC
Original Assignee
Tohoku University NUC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tohoku University NUC filed Critical Tohoku University NUC
Publication of FR2434400A1 publication Critical patent/FR2434400A1/fr
Application granted granted Critical
Publication of FR2434400B1 publication Critical patent/FR2434400B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/035—Measuring direction or magnitude of magnetic fields or magnetic flux using superconductive devices
    • G01R33/0354—SQUIDS
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/842—Measuring and testing
    • Y10S505/843—Electrical
    • Y10S505/845—Magnetometer
    • Y10S505/846—Magnetometer using superconductive quantum interference device, i.e. squid

Abstract

L'invention concerne un fluxmètre supra-conducteur à interférence d'un quantum. Selon l'invention, il comprend un moyen 42, 43 pour appliquer un courant alternatif d'excitation ayant plusieurs fréquences f1 , f2 , à un dispositif supra-conducteur à interférence d'un quantum 44, à travers un couplage électromagnétique, un amplificateur 45 amplifiant un courant alternatif ayant une ou plusieurs composantes de fréquence à la sortie du dispositif et un moyen pour détecter un flux magnétique appliqué au dispositif 4 en recevant le courant alternatif amplifié par l'amplificateur 45. L'invention s'applique notamment à l'instrumentation électrique de précision et aux circuits électroniques supra-conducteurs.
FR7905893A 1978-06-25 1979-03-07 Fluxmetre supra-conducteur a interference d'un quantum de flux Granted FR2434400A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53076900A JPS5910510B2 (ja) 1978-06-25 1978-06-25 超伝導量子干渉磁束計

Publications (2)

Publication Number Publication Date
FR2434400A1 true FR2434400A1 (fr) 1980-03-21
FR2434400B1 FR2434400B1 (fr) 1983-10-07

Family

ID=13618525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905893A Granted FR2434400A1 (fr) 1978-06-25 1979-03-07 Fluxmetre supra-conducteur a interference d'un quantum de flux

Country Status (7)

Country Link
US (1) US4315215A (fr)
JP (1) JPS5910510B2 (fr)
DE (1) DE2906264C3 (fr)
FI (1) FI68326C (fr)
FR (1) FR2434400A1 (fr)
GB (2) GB2023839B (fr)
SE (1) SE433887B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115552B (en) * 1982-02-16 1985-09-11 Emi Ltd Improvements relating to magnetic field gradiometers
JPH0672913B2 (ja) * 1986-12-18 1994-09-14 新技術事業団 磁束計測装置
DE58904801D1 (de) * 1989-03-01 1993-07-29 Siemens Ag Schaltungsanordnung fuer ein gradiometer mit supraleitendem quanteninterferometer (squid) zur messung biomagnetischer felder geringer intensitaet.
DE3931441A1 (de) * 1989-09-21 1991-04-04 Forschungszentrum Juelich Gmbh Sensor zum messen von magnetischem fluss
DE4003524A1 (de) * 1990-02-06 1991-08-08 Forschungszentrum Juelich Gmbh Schaltungsanordnung mit supraleitenden quanten interferenz detektoren (squid)
JPH0443978A (ja) * 1990-06-11 1992-02-13 Seiko Instr Inc 高感度磁場検出装置
DE4119880C2 (de) * 1991-06-17 1993-12-23 Forschungszentrum Juelich Gmbh Schaltungsanordnung mit SQUID zum Messen von magnetischem Fluß
EP0535263B1 (fr) * 1991-09-30 1997-07-23 Siemens Aktiengesellschaft Dispositif de mesure SQUID aux moyens de réduction de bruit
DE4229558C2 (de) * 1992-09-04 1995-10-19 Tzn Forschung & Entwicklung Beschleunigungsaufnehmer
US6257063B1 (en) * 2000-05-24 2001-07-10 Daimlerchrysler Corporation Method for measuring vibration damping
JP5429469B2 (ja) * 2009-09-07 2014-02-26 セイコーエプソン株式会社 量子干渉装置、原子発振器及び磁気センサー

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1472092A (fr) * 1964-12-02 1967-03-10 Ford Motor Co Procédé et dispositif de commande d'un courant électrique de supraconductibilité
GB1175091A (en) * 1966-03-24 1969-12-23 Ford Motor Co Superconducting Apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435337A (en) * 1964-12-11 1969-03-25 Trw Inc Superconductive fluxgate magnetometer
US3758854A (en) * 1971-03-12 1973-09-11 Ja Zimmerman Superconductive quantum interference device having two cavities isolated by a superconductive weak link
US4004217A (en) * 1975-10-31 1977-01-18 S.H.E. Corporation Flux locked loop

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1472092A (fr) * 1964-12-02 1967-03-10 Ford Motor Co Procédé et dispositif de commande d'un courant électrique de supraconductibilité
GB1175091A (en) * 1966-03-24 1969-12-23 Ford Motor Co Superconducting Apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *
EXBK/74 *
EXBK/76 *

Also Published As

Publication number Publication date
FI790637A (fi) 1979-12-26
SE433887B (sv) 1984-06-18
GB2023839B (en) 1983-02-09
DE2906264C3 (de) 1981-04-09
GB2107064A (en) 1983-04-20
FI68326C (fi) 1985-08-12
DE2906264B2 (de) 1980-08-21
US4315215A (en) 1982-02-09
GB2107064B (en) 1983-08-17
JPS5910510B2 (ja) 1984-03-09
DE2906264A1 (de) 1980-01-03
SE7900844L (sv) 1979-12-26
FI68326B (fi) 1985-04-30
JPS554525A (en) 1980-01-14
FR2434400B1 (fr) 1983-10-07
GB2023839A (en) 1980-01-03

Similar Documents

Publication Publication Date Title
EP0416866B1 (fr) Débitmètre électromagnétique utilisant des champs magnétiques de fréquences différentes
FR2434400A1 (fr) Fluxmetre supra-conducteur a interference d'un quantum de flux
EP0871864A4 (fr) Appareil et methode de detection des particules magnetiques d'apres la luminescence electrochimique
US5717326A (en) Flat current sensor
CN101438173A (zh) 在电流测量探头中使用的电流感测电路
JP2662903B2 (ja) 高感度磁場検出装置
FR2418469A1 (fr) Sonde de mesure de la susceptibilite magnetique utilisant un enroulement de compensation
GB913780A (en) Method of obtaining an electrical signal proportional to the cross-sectional area of a magnetic tube or rod
US4272724A (en) Magnetic modulator for magnetic field detection differentially outputting magnetic core noise
KR840006076A (ko) Rf 전력계
FR2418468A1 (fr) Transducteur de courant, notamment pour la mesure de l'intensite du courant circulant dans une barre de distribution
US5334935A (en) Apparatus and method for detecting weak magnetic fields having a saturable core shaped to cancel magnetic fields parallel to the core
SU832502A1 (ru) Способ измерени магнитного пол и устрой-CTBO дл ЕгО РЕАлизАции
SU1170390A1 (ru) Феррозондовый магнитометр
RU2006043C1 (ru) Переносной измеритель токов
JPH06324130A (ja) Ｓｑｕｉｄセンサ装置
SU1374158A1 (ru) Устройство дл измерени магнитострикции
SU866516A1 (ru) Устройство дл измерени магнитных полей
KR950008417B1 (ko) 고감도 자기센서
JPS57187651A (en) Flaw detection of cast iron tube
SU758025A1 (ru) Устройство для формирования синусоидальной магнитной индукции в ферромагнитных образцах 1
JPS6366421A (ja) 磁気式微粉炭流量測定装置
SU800917A1 (ru) Измеритель магнитного пол на дат-чиКЕ ХОллА
SU1744716A2 (ru) Измеритель нат жени магнитной ленты
SU819761A1 (ru) Способ измерени слабых магнит-НыХ пОлЕй

Legal Events

Date Code Title Description
ST Notification of lapse