DE3684558D1 - Supraleitender ad-wandler und digitales magnetometer und verwandtes verfahren zu dessen gebrauch. - Google Patents

Supraleitender ad-wandler und digitales magnetometer und verwandtes verfahren zu dessen gebrauch.

Info

Publication number
DE3684558D1
DE3684558D1 DE8686306033T DE3684558T DE3684558D1 DE 3684558 D1 DE3684558 D1 DE 3684558D1 DE 8686306033 T DE8686306033 T DE 8686306033T DE 3684558 T DE3684558 T DE 3684558T DE 3684558 D1 DE3684558 D1 DE 3684558D1
Authority
DE
Germany
Prior art keywords
super
conducting
converter
related method
digital magnetometer
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.)
Expired - Fee Related
Application number
DE8686306033T
Other languages
English (en)
Inventor
Arnold Herbert Silver
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Application granted granted Critical
Publication of DE3684558D1 publication Critical patent/DE3684558D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01R33/0356—SQUIDS with flux feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/48—Servo-type converters
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measuring Magnetic Variables (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)
DE8686306033T 1985-11-12 1986-08-05 Supraleitender ad-wandler und digitales magnetometer und verwandtes verfahren zu dessen gebrauch. Expired - Fee Related DE3684558D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/797,314 US4672359A (en) 1985-11-12 1985-11-12 Superconducting analog-to-digital converter and digital magnetometer and related method for its use

Publications (1)

Publication Number Publication Date
DE3684558D1 true DE3684558D1 (de) 1992-04-30

Family

ID=25170483

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686306033T Expired - Fee Related DE3684558D1 (de) 1985-11-12 1986-08-05 Supraleitender ad-wandler und digitales magnetometer und verwandtes verfahren zu dessen gebrauch.

Country Status (4)

Country Link
US (1) US4672359A (de)
EP (1) EP0222470B1 (de)
JP (2) JPS62117419A (de)
DE (1) DE3684558D1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646060A (en) * 1984-09-07 1987-02-24 Trw Inc. Superconducting analog-to-digital converter with bidirectional counter
DE3650062T2 (de) * 1985-06-07 1995-01-19 Hitachi Ltd Supraleitende Stromfühlerschaltung.
JPH0758907B2 (ja) * 1986-06-07 1995-06-21 ソニー株式会社 オフセツト自動補正ａ／ｄ変換回路
KR920003885B1 (ko) * 1987-08-25 1992-05-16 스미도모 덴기 고오교오 가부시기가이샤 아날로그/디지탈변환기
DE3738369C1 (de) * 1987-11-12 1988-11-03 Dornier System Gmbh Analog/-Digital-Wandler mit interner Rueckkopplung
EP0320100A2 (de) * 1987-12-05 1989-06-14 Stc Plc Analogdigitalwandler
US4879488A (en) * 1988-05-06 1989-11-07 Trw Inc. Vernier for superconducting analog-to-digital converter
US4977402A (en) * 1988-10-24 1990-12-11 Hewlett-Packard Company Nonhysteretic periodic-threshold SQUID comparator and A/D converter
US4947118A (en) * 1988-11-21 1990-08-07 Fujitsu Limited Digital squid system adaptive for integrated circuit construction and having high accuracy
JPH02257076A (ja) * 1989-03-30 1990-10-17 Fujitsu Ltd ディジタルスクイド制御方式
US5021658A (en) * 1989-06-29 1991-06-04 Westinghouse Electric Corp. Superconducting infrared detector
US4983971A (en) * 1989-06-29 1991-01-08 Westinghouse Electric Corp. Josephson analog to digital converter for low-level signals
US5254945A (en) * 1989-06-30 1993-10-19 Sharp Kabushiki Kaisha Magneto-resistive superconductive device and method for sensing magnetic fields
US5019818A (en) * 1989-08-24 1991-05-28 Trw Inc. Superconducting analog-to-digital converter with grounded four-junction squid bidirectional counter
US5012243A (en) * 1989-08-24 1991-04-30 Trw Inc. Superconducting analog-to-digital converter with floating four-junction squid bidirectional counter
DE69018162T2 (de) * 1989-08-24 1995-08-03 Trw Inc Supraleitender Analog-zu-Digital-Konverter mit einem geerdeten Vier-Übergang-Squid-Zweirichtungszähler.
US5099238A (en) * 1989-11-17 1992-03-24 Hypres Incorporated Parallel analog to digital converter
EP0461742A3 (en) * 1990-02-15 1992-11-19 Fujitsu Limited Digital magnetic flux measuring apparatus using superconducting quantum interference device
US5287058A (en) * 1990-02-15 1994-02-15 Fujitsu Limited Digital magnetic flux measuring apparatus using superconducting quantum interference device with flux trapping prevention features
JPH04129426A (ja) * 1990-09-20 1992-04-30 Res Dev Corp Of Japan 超伝導デジタル・アナログ変換器
JPH0816692B2 (ja) * 1990-09-30 1996-02-21 ダイキン工業株式会社 磁束ロック方法およびその装置
DE4030988A1 (de) * 1990-10-01 1992-04-09 Dornier Gmbh Supraleitender a/d-wandler
US5103682A (en) * 1990-11-05 1992-04-14 The United States Of America As Represented By The Secretary Of Commerce Ultra-sensitive force detector employing servo-stabilized tunneling junction
US5331162A (en) * 1991-11-22 1994-07-19 Trw Inc. Sensitive, low-noise superconducting infrared photodetector
US5272479A (en) * 1992-07-22 1993-12-21 Trw Inc. High sensitivity superconductive digitizer
JP3133830B2 (ja) * 1992-07-24 2001-02-13 富士通株式会社 Ｓｑｕｉｄ磁束計
US5341136A (en) * 1992-09-16 1994-08-23 Westinghouse Electric Corp. Bandpass sigma-delta modulator for analog-to-digital converters
US5327130A (en) * 1993-08-09 1994-07-05 Westinghouse Electric Corp. Spur-free sigma-delta modulator and multiple flux quanta feedback generator
US5420586A (en) * 1993-09-29 1995-05-30 Hypres, Inc. Superconducting analog to digital converter type circuit
US5398030A (en) * 1993-12-21 1995-03-14 Trw Inc. High-performance superconducting digital-to-analog converter employing double-junction squid flip-flops
US5469057A (en) * 1994-03-08 1995-11-21 University Of New Mexico Method and apparatus for extending the dynamic range of DC-squid measurements using a flux tracking loop
JPH08211022A (ja) * 1994-12-05 1996-08-20 Hitachi Ltd 材料検査装置
DE19606655C2 (de) * 1996-02-23 2002-04-11 Forschungszentrum Juelich Gmbh Meßeinrichtung zur Messung magnetischer Felder
US6239596B1 (en) 1997-06-09 2001-05-29 Joseph J. Stupak, Jr. Total magnetic flux measuring device
US5939881A (en) * 1997-11-13 1999-08-17 Raytheon Company High dynamic range digital fluxgate magnetometer
US6734699B1 (en) 1999-07-14 2004-05-11 Northrop Grumman Corporation Self-clocked complementary logic
DE10139883C1 (de) * 2001-08-20 2003-06-05 Stl Systemtechnik Ludwig Gmbh Vorrichtung zum Einstellen eines Arbeitspunktes eines Magnetfeldsensors und ein Verfahren dafür
US6653962B2 (en) * 2001-10-19 2003-11-25 Deepnarayan Gupta Superconducting dual function digitizer
US8179133B1 (en) 2008-08-18 2012-05-15 Hypres, Inc. High linearity superconducting radio frequency magnetic field detector
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192371A (en) * 1961-09-14 1965-06-29 United Aircraft Corp Feedback integrating system
US4340883A (en) * 1977-06-20 1982-07-20 The Solartron Electronic Group Limited Bipolar mark-space analogue-to-digital converter with balanced scale factors
US4243974A (en) * 1978-02-24 1981-01-06 E. I. Du Pont De Nemours And Company Wide dynamic range analog to digital converter
GB2115552B (en) * 1982-02-16 1985-09-11 Emi Ltd Improvements relating to magnetic field gradiometers
DE3310245C2 (de) * 1983-03-22 1985-06-27 Dornier System Gmbh, 7990 Friedrichshafen Verfahren und Vorrichtung zur Ermittlung von Signalgrößen-Inkrementen mittels einer Josephson-Anordnung
US4646060A (en) * 1984-09-07 1987-02-24 Trw Inc. Superconducting analog-to-digital converter with bidirectional counter

Also Published As

Publication number Publication date
US4672359A (en) 1987-06-09
JPS62117419A (ja) 1987-05-28
JPH05291956A (ja) 1993-11-05
EP0222470B1 (de) 1992-03-25
EP0222470A3 (en) 1989-11-08
JP2711043B2 (ja) 1998-02-10
EP0222470A2 (de) 1987-05-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee