JP4342415B2 - センサシステム - Google Patents
センサシステム Download PDFInfo
- Publication number
- JP4342415B2 JP4342415B2 JP2004292146A JP2004292146A JP4342415B2 JP 4342415 B2 JP4342415 B2 JP 4342415B2 JP 2004292146 A JP2004292146 A JP 2004292146A JP 2004292146 A JP2004292146 A JP 2004292146A JP 4342415 B2 JP4342415 B2 JP 4342415B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- sensor
- resistance
- resistance value
- value
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/205—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using magneto-resistance devices, e.g. field plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Hall/Mr Elements (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measuring Magnetic Variables (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
112、113 一対の端子
102、202 導体
220 抵抗検知サブシステム
230 コントローラ
Claims (7)
- 単一対の端子を有する磁気抵抗電流センサと、
前記磁気抵抗電流センサに隣接する導体
を備え、
第1の時間期間に前記導体に事前に知られた値を有する第1の電流が流れているときに、前記単一対の端子間の抵抗値(第1の抵抗値という)を測定し、
前記第1の時間期間とは異なる第2の時間期間に前記導体に第2の電流が流れているときに、前記単一対の端子間の抵抗値(第2の抵抗値という)を測定し、
前記第1の抵抗値を、前記第1の時間期間における前記電流センサの近傍における温度測定値に変換し、前記第2の抵抗値を、前記第2の時間期間における前記第2の電流の電流測定値に変換するように構成された、センサシステム。 - 前記第2の電流が未知の値を有する、請求項1に記載のセンサシステム。
- 前記磁気抵抗センサは巨大磁気抵抗センサである、請求項1または2に記載のセンサシステム。
- 前記磁気抵抗センサは異方性磁気抵抗センサである、請求項1または2に記載のセンサシステム。
- 前記電流センサの前記単一対の端子に接続されて、該単一対の端子間の抵抗値を測定するように構成された抵抗検知サブシステムと、
前記導体に流れる電流を制御するように接続されたコントローラ
を備える、請求項1乃至4のいずれかに記載のセンサシステム。 - 前記コントローラは、前記第1及び第2の時間期間に、前記導体に流れる電流を制御し、
前記抵抗検知サブシステムは、前記第1及び第2の時間期間に、前記導体に流れる電流に応答して、前記電流センサの前記単一対の端子間の抵抗値を測定することからなる、請求項5に記載のセンサシステム。 - 前記コントローラは、前記抵抗検知サブシステムのサブシステム出力に接続され、前記コントローラは、コンピュータプログラムを含み、該コンピュータプログラムは、実施されると、前記サブシステム出力からの前記抵抗測定値を、前記第1及び第2の時間期間に応じて温度測定値または電流測定値のいずれかに変換することからなる、請求項5または6に記載のセンサシステム。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/682,344 US7239123B2 (en) | 2003-10-09 | 2003-10-09 | Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005114727A JP2005114727A (ja) | 2005-04-28 |
JP4342415B2 true JP4342415B2 (ja) | 2009-10-14 |
Family
ID=34422496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004292146A Expired - Fee Related JP4342415B2 (ja) | 2003-10-09 | 2004-10-05 | センサシステム |
Country Status (2)
Country | Link |
---|---|
US (1) | US7239123B2 (ja) |
JP (1) | JP4342415B2 (ja) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005078750A (ja) * | 2003-09-02 | 2005-03-24 | Toshiba Corp | 磁気記録再生装置 |
JP2005151631A (ja) * | 2003-11-12 | 2005-06-09 | Mitsubishi Electric Corp | 半導体装置および過電流の基準レベルのデータ設定方法 |
DE102004062474A1 (de) * | 2004-03-23 | 2005-10-13 | Siemens Ag | Vorrichtung zur potenzialfreien Strommessung |
US7397234B2 (en) * | 2005-12-19 | 2008-07-08 | Silicon Laboratories Inc. | Current sensor with reset circuit |
US7362086B2 (en) * | 2005-12-19 | 2008-04-22 | Silicon Laboratories Inc. | Integrated current sensor |
US7679162B2 (en) * | 2005-12-19 | 2010-03-16 | Silicon Laboratories Inc. | Integrated current sensor package |
BRPI0709233A2 (pt) * | 2006-03-30 | 2011-06-28 | Koninkl Philips Electronics Nv | sistema de detecção e método para detecção qualitativa ou quantitativa de uma propriedade de campo magnético de um campo magnético modulado, e, uso de um sistema de detecção |
US7388372B2 (en) * | 2006-05-31 | 2008-06-17 | Caterpillar Inc. | Electrical system with magnetoresistive sensors |
US7990132B2 (en) * | 2006-06-30 | 2011-08-02 | Silicon Laboratories Inc. | Current sensor including an integrated circuit die including a first and second coil |
US7622910B2 (en) * | 2006-10-06 | 2009-11-24 | Honeywell International Inc. | Method and apparatus for AC integrated current sensor |
US7821251B2 (en) * | 2006-12-12 | 2010-10-26 | Silicon Laboratories Inc. | Current sensor |
JP2009229112A (ja) * | 2008-03-19 | 2009-10-08 | Tdk Corp | 電圧検出回路 |
US8058876B2 (en) * | 2008-04-24 | 2011-11-15 | Honeywell International, Inc. | Low cost current and temperature sensor |
US7728578B2 (en) * | 2008-05-15 | 2010-06-01 | Silicon Laboratories Inc. | Method and apparatus for high current measurement |
CN102356329B (zh) * | 2009-03-10 | 2015-04-08 | 小利兰·斯坦福大学托管委员会 | 磁阻传感器中的温度和漂移补偿 |
CN102095519A (zh) * | 2011-01-26 | 2011-06-15 | 佛山市川东热敏磁电有限公司 | Mr磁敏温度传感器 |
DE102011102978B4 (de) * | 2011-05-23 | 2018-05-17 | Phoenix Contact Gmbh & Co. Kg | Strommessumformer |
US9310398B2 (en) * | 2011-11-29 | 2016-04-12 | Infineon Technologies Ag | Current sensor package, arrangement and system |
JP5857687B2 (ja) * | 2011-11-30 | 2016-02-10 | 株式会社リコー | 電流検知装置、電流検知素子および電流検知方法 |
JP5849654B2 (ja) * | 2011-11-30 | 2016-02-03 | 株式会社リコー | 電流センサ |
FR2989171B1 (fr) | 2012-04-06 | 2014-05-02 | Commissariat Energie Atomique | Procede et dispositif de mesure d'un champ magnetique et de la temperature d'un transducteur magneto-resistif |
US9671486B2 (en) | 2013-06-18 | 2017-06-06 | Infineon Technologies Ag | Sensors, systems and methods for compensating for thermal EMF |
SG10201810473UA (en) * | 2014-05-23 | 2018-12-28 | Univ Singapore Technology & Design | A power monitoring apparatus, a method for power monitoring and a base station used with the aforementioned |
JP6493259B2 (ja) * | 2016-03-11 | 2019-04-03 | オムロン株式会社 | 温度監視装置、温度監視方法、情報処理プログラム、および記録媒体 |
EP3430195B1 (en) * | 2016-03-13 | 2024-01-03 | Hampiðjan HF. | Method for ascertaining a fiber rope temperature |
US10365329B2 (en) * | 2016-05-26 | 2019-07-30 | Infineon Technologies Ag | Measurements in switch devices |
JP6988138B2 (ja) * | 2017-04-10 | 2022-01-05 | 昭和電工マテリアルズ株式会社 | デバイス状態検知装置、電源システムおよび自動車 |
DE102017127578B4 (de) * | 2017-11-22 | 2020-11-05 | Helmholtz-Zentrum Berlin für Materialien und Energie Gesellschaft mit beschränkter Haftung | Vorrichtung und Verfahren zur Nutzung eines anisotrop magnetoresistiven Sensors zur Bestimmung von Magnetfeldern und Temperaturen |
KR102072065B1 (ko) * | 2018-08-24 | 2020-01-31 | 홍기철 | 코어리스(Coreless) 비접촉식 전류 계측 시스템 |
Family Cites Families (17)
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US2836791A (en) * | 1952-07-31 | 1958-05-27 | Cfcmug | Magnetometers |
JPS55155253A (en) * | 1979-05-22 | 1980-12-03 | Nippon Denso Co Ltd | Output compensation circuit for bridge type measuring apparatus |
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DE3854457T2 (de) * | 1987-07-07 | 1996-02-29 | Nippon Denso Co | Stromdetektoranordnung mit ferromagnetischem Magnetwiderstandselement. |
JPH03261869A (ja) * | 1990-03-13 | 1991-11-21 | Omron Corp | ホール素子の出力信号補正装置 |
US5351555A (en) * | 1991-07-29 | 1994-10-04 | Magnetoelastic Devices, Inc. | Circularly magnetized non-contact torque sensor and method for measuring torque using same |
JPH05126865A (ja) * | 1991-10-22 | 1993-05-21 | Hitachi Ltd | 電流検出装置あるいは電流検出方法 |
JP2551321B2 (ja) * | 1993-04-21 | 1996-11-06 | 日本電気株式会社 | 集積化磁気抵抗効果センサ |
FR2710753B1 (fr) * | 1993-09-27 | 1995-10-27 | Commissariat Energie Atomique | Capteur de courant comprenant un ruban magnétorésistif et son procédé de réalisation. |
FR2729790A1 (fr) * | 1995-01-24 | 1996-07-26 | Commissariat Energie Atomique | Magnetoresistance geante, procede de fabrication et application a un capteur magnetique |
JPH1026639A (ja) * | 1996-07-11 | 1998-01-27 | Hitachi Ltd | 電流センサ及びこれを内蔵した電気装置 |
JP3545585B2 (ja) * | 1998-01-19 | 2004-07-21 | 矢崎総業株式会社 | 温度電圧検出ユニット |
JP3410043B2 (ja) * | 1999-04-28 | 2003-05-26 | 三菱電機株式会社 | 電流検出システム |
US6469927B2 (en) * | 2000-07-11 | 2002-10-22 | Integrated Magnetoelectronics | Magnetoresistive trimming of GMR circuits |
JP2002267694A (ja) * | 2001-03-14 | 2002-09-18 | Yazaki Corp | センサ装置 |
US6667682B2 (en) * | 2001-12-26 | 2003-12-23 | Honeywell International Inc. | System and method for using magneto-resistive sensors as dual purpose sensors |
US6781359B2 (en) * | 2002-09-20 | 2004-08-24 | Allegro Microsystems, Inc. | Integrated current sensor |
-
2003
- 2003-10-09 US US10/682,344 patent/US7239123B2/en not_active Expired - Fee Related
-
2004
- 2004-10-05 JP JP2004292146A patent/JP4342415B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20050077890A1 (en) | 2005-04-14 |
US7239123B2 (en) | 2007-07-03 |
JP2005114727A (ja) | 2005-04-28 |
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