CA1131313A - Magnetic modulator differentially outputting magnetic core noise - Google Patents
Magnetic modulator differentially outputting magnetic core noiseInfo
- Publication number
- CA1131313A CA1131313A CA316,887A CA316887A CA1131313A CA 1131313 A CA1131313 A CA 1131313A CA 316887 A CA316887 A CA 316887A CA 1131313 A CA1131313 A CA 1131313A
- Authority
- CA
- Canada
- Prior art keywords
- magnetic
- core
- input
- noise
- low noise
- 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
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 185
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 230000004907 flux Effects 0.000 claims description 37
- 230000005284 excitation Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000005292 diamagnetic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 239000003302 ferromagnetic material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000000306 component Substances 0.000 description 8
- 230000035699 permeability Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 206010001497 Agitation Diseases 0.000 description 1
- 230000005330 Barkhausen effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
- G01R33/045—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle in single-, or multi-aperture elements
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Amplitude Modulation (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53-8628 | 1978-01-28 | ||
| JP862878A JPS54102563A (en) | 1978-01-28 | 1978-01-28 | Magnetic modulator designed to differentially output magnetic core noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1131313A true CA1131313A (en) | 1982-09-07 |
Family
ID=11698207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA316,887A Expired CA1131313A (en) | 1978-01-28 | 1978-11-27 | Magnetic modulator differentially outputting magnetic core noise |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4272724A (en:Method) |
| JP (1) | JPS54102563A (en:Method) |
| CA (1) | CA1131313A (en:Method) |
| DE (1) | DE2851415C2 (en:Method) |
| FR (1) | FR2415816A1 (en:Method) |
| GB (1) | GB2014009B (en:Method) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE14940T1 (de) * | 1981-05-21 | 1985-08-15 | Siemens Ag | Magnetfeldsonde zur bestimmung eines schwachen magnetfeldes nach groesse und richtung. |
| JPS5924260A (ja) * | 1982-07-31 | 1984-02-07 | Saura Keiki Seisakusho:Kk | マグネツトメ−タの設定方向測定方式 |
| US4887029A (en) * | 1988-03-18 | 1989-12-12 | Westinghouse Electric Corp. | Mutual inductance current transducer, method of making and electric energy meter incorporating same |
| US5041780A (en) * | 1988-09-13 | 1991-08-20 | California Institute Of Technology | Integrable current sensors |
| FR2817622B1 (fr) * | 2000-12-01 | 2003-01-10 | Memscap | Micromagnetometre a porte de flux |
| GB0029953D0 (en) * | 2000-12-07 | 2001-01-24 | Lem Heme Ltd | Current sensor |
| FR2828740B1 (fr) * | 2001-08-16 | 2003-12-05 | Commissariat Energie Atomique | Procede de stabilisation d'un signal de magnetometre, et magnetometres stabilises |
| KR100464093B1 (ko) * | 2002-03-13 | 2005-01-03 | 삼성전기주식회사 | 인쇄회로기판에 집적된 자계검출소자 및 그 제조방법 |
| KR100494472B1 (ko) * | 2002-12-31 | 2005-06-10 | 삼성전기주식회사 | 인쇄회로기판 기술을 이용한 미약자계 감지용 센서 및 그제조 방법 |
| DE102010047270A1 (de) * | 2010-10-01 | 2012-04-05 | Hochschule Für Angewandte Wissenschaften Fachhochschule Würzburg-Schweinfurt | Fluxgatesensor |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2958036A (en) * | 1960-10-25 | Modulator | ||
| US2053154A (en) * | 1935-03-27 | 1936-09-01 | Gen Electric | Direct-current indicator |
| US2252059A (en) * | 1936-12-24 | 1941-08-12 | Siemens App Und Maschinen Gmbh | Method and a device for determining the magnitudes of magnetic fields |
| US2418553A (en) * | 1943-08-03 | 1947-04-08 | Emmett M Irwin | Flux measuring system |
| US2406360A (en) * | 1944-10-04 | 1946-08-27 | Bell Telephone Labor Inc | Communication between ships |
| US2649568A (en) * | 1949-07-12 | 1953-08-18 | Bell Telephone Labor Inc | Magnetometer |
| US2695384A (en) * | 1949-11-01 | 1954-11-23 | Bendix Aviat Corp | Inductive device of the saturable core type having flux regeneration characteristics |
| NL179879B (nl) * | 1953-07-15 | Voest Alpine Ag | Zeef voor het uit een suspensie afscheiden van vaste stoffen. | |
| US2725520A (en) * | 1954-11-04 | 1955-11-29 | William H Woodworth | Electrical error detector |
| AT209423B (de) * | 1957-02-27 | 1960-06-10 | Vyzk A Zkusebni Letecky Ustav | Elektromagnetische Differentialsonde |
| FR1210668A (fr) * | 1957-02-27 | 1960-03-10 | Vyzk A Zkusebni Letecky Ustav | Sonde différentielle électromagnétique |
| US3246219A (en) * | 1957-05-03 | 1966-04-12 | Devol | Ferroresonant devices |
| US3233171A (en) * | 1960-09-21 | 1966-02-01 | Tokyo Keiki Seizosho Company L | Apparatus for detecting the presence, magnitude and direction of magnetic fields utilizing saturable magnetic core energized by alternating current |
| DE1466739A1 (de) * | 1964-04-08 | 1969-06-04 | Hitachi Ltd | Magnetfluss-Messvorrichtung |
| FR1585806A (en:Method) * | 1968-10-10 | 1970-01-30 | ||
| US3768011A (en) * | 1970-06-09 | 1973-10-23 | W Swain | Means for measuring magnitude and direction of a direct current or permanent magnet, including clip-on direct current sensing inductor |
-
1978
- 1978-01-28 JP JP862878A patent/JPS54102563A/ja active Granted
- 1978-11-27 CA CA316,887A patent/CA1131313A/en not_active Expired
- 1978-11-28 DE DE2851415A patent/DE2851415C2/de not_active Expired
- 1978-11-28 GB GB7846274A patent/GB2014009B/en not_active Expired
- 1978-11-28 US US05/964,380 patent/US4272724A/en not_active Expired - Lifetime
- 1978-11-28 FR FR7833568A patent/FR2415816A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54102563A (en) | 1979-08-13 |
| DE2851415C2 (de) | 1986-10-16 |
| FR2415816B1 (en:Method) | 1983-03-25 |
| JPS6119129B2 (en:Method) | 1986-05-15 |
| US4272724A (en) | 1981-06-09 |
| GB2014009A (en) | 1979-08-15 |
| GB2014009B (en) | 1982-06-30 |
| FR2415816A1 (fr) | 1979-08-24 |
| DE2851415A1 (de) | 1979-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |