DE102007046900C5 - Hochtemperatursensor und ein Verfahren zu dessen Herstellung - Google Patents
Hochtemperatursensor und ein Verfahren zu dessen Herstellung Download PDFInfo
- Publication number
- DE102007046900C5 DE102007046900C5 DE102007046900.6A DE102007046900A DE102007046900C5 DE 102007046900 C5 DE102007046900 C5 DE 102007046900C5 DE 102007046900 A DE102007046900 A DE 102007046900A DE 102007046900 C5 DE102007046900 C5 DE 102007046900C5
- Authority
- DE
- Germany
- Prior art keywords
- ceramic
- layer
- glass ceramic
- intermediate layer
- temperature sensor
- 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.)
- Active
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
- H01C3/04—Iron-filament ballast resistors; Other resistors having variable temperature coefficient
-
- 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
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/10—Protective devices, e.g. casings for preventing chemical attack
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/02—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits or green body
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits or green body characterised by the resistive component
- H01C17/06526—Precursor compositions therefor, e.g. pastes, inks, glass frits or green body characterised by the resistive component composed of metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007046900.6A DE102007046900C5 (de) | 2007-09-28 | 2007-09-28 | Hochtemperatursensor und ein Verfahren zu dessen Herstellung |
| US12/237,742 US8183974B2 (en) | 2007-09-28 | 2008-09-25 | 1200° C. film resistor |
| KR20080094807A KR101489001B1 (ko) | 2007-09-28 | 2008-09-26 | 1200℃ 피막 저항기 |
| JP2008249692A JP5641683B2 (ja) | 2007-09-28 | 2008-09-29 | 1200℃膜抵抗体 |
| FR0856520A FR2921724B1 (fr) | 2007-09-28 | 2008-09-29 | Procede de production d'un capteur de haute temperature, puce de capteur de haute temperature obtenue et son utilisation |
| JP2014041721A JP5855149B2 (ja) | 2007-09-28 | 2014-03-04 | 1200℃膜抵抗体 |
| JP2015206268A JP5976186B2 (ja) | 2007-09-28 | 2015-10-20 | 1200℃膜抵抗体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007046900.6A DE102007046900C5 (de) | 2007-09-28 | 2007-09-28 | Hochtemperatursensor und ein Verfahren zu dessen Herstellung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE102007046900A1 DE102007046900A1 (de) | 2009-04-30 |
| DE102007046900B4 DE102007046900B4 (de) | 2011-07-21 |
| DE102007046900C5 true DE102007046900C5 (de) | 2018-07-26 |
Family
ID=40433426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007046900.6A Active DE102007046900C5 (de) | 2007-09-28 | 2007-09-28 | Hochtemperatursensor und ein Verfahren zu dessen Herstellung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8183974B2 (https=) |
| JP (3) | JP5641683B2 (https=) |
| KR (1) | KR101489001B1 (https=) |
| DE (1) | DE102007046900C5 (https=) |
| FR (1) | FR2921724B1 (https=) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8162536B2 (en) * | 2008-12-15 | 2012-04-24 | Delphi Technologies, Inc. | Combined sensor |
| DE102009007940B4 (de) * | 2009-02-06 | 2010-11-18 | Heraeus Sensor Technology Gmbh | Nichtleitfähiges Zirkonoxid |
| DE102009017676B3 (de) * | 2009-04-16 | 2010-08-05 | Heraeus Sensor Technology Gmbh | Hochtemperatursensor mit Chipdrähten aus Chromoxid bildender Eisenlegierung |
| DE102009045794A1 (de) | 2009-10-19 | 2011-04-28 | Innovative Sensor Technology Ist Ag | Sensor zur Bestimmung mindestens einer physikalischen Prozessgröße |
| DE102010050315C5 (de) * | 2010-11-05 | 2014-12-04 | Danfoss Silicon Power Gmbh | Verfahren zur Herstellung von gesinterten, elektrischen Baugruppen und damit hergestellte Leistungshalbleitermodule |
| DE102011051845B3 (de) * | 2011-07-14 | 2012-10-25 | Heraeus Sensor Technology Gmbh | Messwiderstand mit Schutzrahmen |
| JP5736348B2 (ja) * | 2012-06-21 | 2015-06-17 | 立山科学工業株式会社 | 薄膜抵抗体温度センサとその製造方法 |
| DE102012110210B4 (de) * | 2012-10-25 | 2017-06-01 | Heraeus Sensor Technology Gmbh | Hochtemperaturchip mit hoher Stabilität |
| JP6404726B2 (ja) | 2014-03-07 | 2018-10-17 | 日本特殊陶業株式会社 | 感温素子及び温度センサ |
| DE102014104219B4 (de) * | 2014-03-26 | 2019-09-12 | Heraeus Nexensos Gmbh | Keramikträger sowie Sensorelement, Heizelement und Sensormodul jeweils mit einem Keramikträger und Verfahren zur Herstellung eines Keramikträgers |
| EP3136067B1 (en) * | 2014-04-21 | 2019-01-30 | Kyocera Corporation | Wiring substrate and temperature sensing element |
| JP6430910B2 (ja) | 2015-08-05 | 2018-11-28 | 日本特殊陶業株式会社 | 感温素子および温度センサ |
| CN109073479B (zh) * | 2016-04-26 | 2021-02-19 | 京瓷株式会社 | 传感器基板以及传感器装置 |
| JP2018066592A (ja) * | 2016-10-17 | 2018-04-26 | Koa株式会社 | 白金温度センサ素子 |
| JP6821384B2 (ja) * | 2016-10-17 | 2021-01-27 | Koa株式会社 | 白金温度センサ素子 |
| DE102017104162A1 (de) | 2017-02-28 | 2018-08-30 | Innovative Sensor Technology Ist Ag | Sensorelement und thermischer Strömungssensor zur Bestimmung einer physikalischen Größe eines Messmediums |
| JP2018146404A (ja) * | 2017-03-06 | 2018-09-20 | Koa株式会社 | 温度センサ素子 |
| JP6929126B2 (ja) * | 2017-05-16 | 2021-09-01 | Koa株式会社 | 温度センサ素子 |
| JP6929125B2 (ja) * | 2017-05-16 | 2021-09-01 | Koa株式会社 | 温度センサ素子 |
| DE102018110889A1 (de) * | 2017-05-16 | 2018-11-22 | Koa Corporation | Temperatursensor-Element |
| EP3404405A1 (de) * | 2017-05-18 | 2018-11-21 | Heraeus Sensor Technology GmbH | Sensor zur bestimmung von gasparametern |
| EP3409467B1 (de) | 2017-05-30 | 2019-07-03 | Heraeus Nexensos GmbH | Heizer mit einem co-gesinterten mehrschichtenaufbau |
| US10371581B2 (en) * | 2017-06-02 | 2019-08-06 | Sensata Technologies, Inc. | Alumina diffusion barrier for sensing elements |
| DE102017222495A1 (de) | 2017-12-12 | 2019-06-13 | Heraeus Sensor Technology Gmbh | Sensor mit thermoschockbeständigem Substrat |
| DE102018101419A1 (de) * | 2018-01-23 | 2019-07-25 | Biotronik Se & Co. Kg | Elektrischer Widerstand, insbesondere für medizinische Implantate |
| DE202019002164U1 (de) | 2019-05-17 | 2019-06-21 | Heraeus Nexensos Gmbh | Verbesserter Hochtemperaturchip |
| DE102019113127A1 (de) * | 2019-05-17 | 2020-11-19 | Georg Bernitz | Messfühler |
| US20210247218A1 (en) * | 2020-02-10 | 2021-08-12 | Hutchinson Technology Incorporated | Systems And Methods To Increase Sensor Robustness |
| CN112268632B (zh) * | 2020-10-19 | 2022-11-04 | 中国电子科技集团公司第四十九研究所 | 一种温度系数可调的耐1000℃高温金属薄膜热电阻及其制备方法 |
| CN113529037A (zh) * | 2021-07-19 | 2021-10-22 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | 一种铂薄膜温度传感器的封装方法 |
| EP4470980A1 (de) * | 2023-06-02 | 2024-12-04 | Yageo Nexensos GmbH | Temperatursensor mit fixiertropfen und runden poren (rohs) |
| EP4470979A1 (de) * | 2023-06-02 | 2024-12-04 | Yageo Nexensos GmbH | Brechbarer temperatursensor mit rohs konformem fixiertropfen |
| DE102023126209A1 (de) | 2023-09-27 | 2025-03-27 | Innovative Sensor Technology Ist Ag | Vorrichtung zum Erfassen der Temperatur eines Mediums oder zum Heizen des Mediums und Herstellungsverfahren |
| CN121068047B (zh) * | 2025-11-05 | 2026-02-24 | 深圳汇北川科技股份有限公司 | 一种用于固态电池的抗干扰高稳定性薄膜铂温度传感器 |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050052A (en) | 1975-06-21 | 1977-09-20 | W. C. Heraeus Gmbh | Electrical temperature measuring resistor structure, particularly for resistance thermometers |
| EP0327535B1 (en) | 1986-02-13 | 1991-09-18 | Rosemount Inc. | Thin film platinum resistance thermometer with high temperature diffusion barrier |
| DE4026061C1 (https=) | 1990-08-17 | 1992-02-13 | Heraeus Sensor Gmbh, 6450 Hanau, De | |
| WO1992015101A1 (de) | 1991-02-15 | 1992-09-03 | Siemens Aktiengesellschaft | Hochtemperatur-platinmetall-temperatursensor |
| US5202665A (en) | 1989-07-25 | 1993-04-13 | Roth-Technik Gmbh & Co. | Temperature sensor and process for its production |
| EP0543413A1 (en) | 1991-11-22 | 1993-05-26 | Ngk Spark Plug Co., Ltd | Resistor type physical quantity sensor |
| DE19540194C1 (de) | 1995-10-30 | 1997-02-20 | Heraeus Sensor Gmbh | Widerstandsthermometer aus einem Metall der Platingruppe |
| DE19750123A1 (de) | 1997-11-13 | 1999-06-10 | Heraeus Sensor Nite Gmbh | Verfahren zur Herstellung einer Sensoranordnung für die Temperaturmessung |
| EP0973020A1 (de) | 1998-07-16 | 2000-01-19 | Heraeus Electro-Nite International N.V. | Elektrischer Temperatur-Sensor mit Mehrfachschicht |
| WO2000042402A1 (de) | 1999-01-14 | 2000-07-20 | Sensotherm Temperatursensorik Gmbh | Platintemperatursensor und verfahren zur herstellung desselben |
| DE19901183C2 (de) | 1999-01-14 | 2001-01-25 | Sensotherm Temperatursensorik | Platintemperatursensor und Herstellungsverfahren für denselben |
| DE10016415A1 (de) | 2000-04-01 | 2001-10-11 | Bosch Gmbh Robert | Sensorelement, insbesondere Temperaturfühler |
| DE10104493A1 (de) | 2001-01-31 | 2002-08-22 | Epiq Sensor Nite N V | Temperatursensor und Verfahren zur Herstellung eines Temperatursensors |
| DE10358282A1 (de) | 2003-12-12 | 2005-07-28 | Georg Bernitz | Bauelement und Verfahren zu dessen Herstellung |
| DE102004034185B3 (de) | 2004-07-15 | 2006-01-05 | Zitzmann, Heinrich, Dr. | Temperaturfühler und Verfahren zu dessen Herstellung |
| EP1619485A1 (de) | 2004-02-24 | 2006-01-25 | Electrovac, Fabrikation elektrotechnischer Spezialartikel Gesellschaft m.b.H. | Temperaturmessfühler |
| DE102007038680A1 (de) | 2007-08-15 | 2009-02-26 | Heraeus Sensor Technology Gmbh | Rußsensor mit glatter, reiner Al2O3-Oberfläche |
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| US2045640A (en) | 1934-10-29 | 1936-06-30 | Leeds & Northrup Co | Thermal conductivity cell |
| US2818482A (en) | 1953-04-21 | 1957-12-31 | Victory Engineering Corp | High speed clinical thermometers |
| US3249988A (en) | 1962-02-27 | 1966-05-10 | Victory Engineering Corp | Method of covering resistor bead |
| US3749631A (en) | 1971-04-26 | 1973-07-31 | Dapak Systems Inc | Method and apparatus for preparing and assembling communications for mass distribution |
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| US3952276A (en) | 1974-02-21 | 1976-04-20 | Siemens Aktiengesellschaft | Fluid tight NTC high temperature sensor and method of producing same |
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| JPH02164003A (ja) | 1988-12-19 | 1990-06-25 | Matsushita Electric Ind Co Ltd | ガラス封入形サーミスタの製造方法 |
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| JP2904066B2 (ja) | 1995-08-31 | 1999-06-14 | 松下電器産業株式会社 | 温度センサ及びその製造方法 |
| JPH09250952A (ja) | 1996-01-08 | 1997-09-22 | Matsushita Electric Ind Co Ltd | 温度検出装置とそれを用いた自動車 |
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| JPH1140403A (ja) | 1997-07-22 | 1999-02-12 | Murata Mfg Co Ltd | 温度センサ素子 |
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| DE19813468C1 (de) | 1998-03-26 | 1999-07-22 | Sensotherm Temperatursensorik | Sensorbauelement |
| DE19848524C1 (de) | 1998-10-21 | 1999-12-16 | Dresden Ev Inst Festkoerper | Verfahren zur Herstellung hochintegrationsfähiger Platin-Dünnschichtwiderstände |
| US6229121B1 (en) | 1999-07-23 | 2001-05-08 | Industrial Technology Research Institute | Integrated thermal buckling micro switch with electric heater and sensor |
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| US6341892B1 (en) | 2000-02-03 | 2002-01-29 | George Schmermund | Resistance thermometer probe |
| JP2001230103A (ja) | 2000-02-17 | 2001-08-24 | Matsushita Electric Ind Co Ltd | ガラス封入形サーミスタ |
| KR100422333B1 (ko) | 2000-07-31 | 2004-03-10 | 이노스텍 (주) | 단결정 거대 입자로 구성된 금속 박막 제조 방법 및 그 금속 박막 |
| JP4016627B2 (ja) | 2000-11-22 | 2007-12-05 | 株式会社デンソー | 温度センサ |
| JP3589422B2 (ja) * | 2000-11-24 | 2004-11-17 | 旭化成エレクトロニクス株式会社 | 異方導電性フィルム |
| ES2192517T3 (es) | 2000-12-05 | 2003-10-16 | Italcoppie S R L | Metodo para fabricar una sonda sellada de temperatura y sonda fabricada con dicho metodo. |
| US20020135454A1 (en) | 2001-03-22 | 2002-09-26 | Shunji Ichida | Temperature sensor |
| DE10210772C1 (de) | 2002-03-12 | 2003-06-26 | Heraeus Sensor Nite Gmbh | Temperatursensor |
| US7106167B2 (en) * | 2002-06-28 | 2006-09-12 | Heetronix | Stable high temperature sensor system with tungsten on AlN |
| US7046116B2 (en) | 2002-11-12 | 2006-05-16 | Heraeus Sensor Technology Gmbh | Temperature probe and its use |
| JP4221565B2 (ja) * | 2002-11-14 | 2009-02-12 | 明陽電機株式会社 | 耐熱耐振型温度センサ |
| JP4168035B2 (ja) * | 2004-03-08 | 2008-10-22 | 日本特殊陶業株式会社 | 白金抵抗体式温度センサ |
| JP4253642B2 (ja) * | 2005-02-25 | 2009-04-15 | 日本特殊陶業株式会社 | 温度センサ |
-
2007
- 2007-09-28 DE DE102007046900.6A patent/DE102007046900C5/de active Active
-
2008
- 2008-09-25 US US12/237,742 patent/US8183974B2/en active Active
- 2008-09-26 KR KR20080094807A patent/KR101489001B1/ko active Active
- 2008-09-29 JP JP2008249692A patent/JP5641683B2/ja not_active Expired - Fee Related
- 2008-09-29 FR FR0856520A patent/FR2921724B1/fr active Active
-
2014
- 2014-03-04 JP JP2014041721A patent/JP5855149B2/ja not_active Expired - Fee Related
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2015
- 2015-10-20 JP JP2015206268A patent/JP5976186B2/ja not_active Expired - Fee Related
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050052A (en) | 1975-06-21 | 1977-09-20 | W. C. Heraeus Gmbh | Electrical temperature measuring resistor structure, particularly for resistance thermometers |
| DE2527739C3 (de) | 1975-06-21 | 1978-08-31 | W.C. Heraeus Gmbh, 6450 Hanau | Verfahren zur Herstellung eines elektrischen Meßwiderstandes für ein Widerstandsthermometer |
| EP0327535B1 (en) | 1986-02-13 | 1991-09-18 | Rosemount Inc. | Thin film platinum resistance thermometer with high temperature diffusion barrier |
| US5202665A (en) | 1989-07-25 | 1993-04-13 | Roth-Technik Gmbh & Co. | Temperature sensor and process for its production |
| DE4026061C1 (https=) | 1990-08-17 | 1992-02-13 | Heraeus Sensor Gmbh, 6450 Hanau, De | |
| EP0471138B1 (de) | 1990-08-17 | 1994-12-14 | Heraeus Sensor GmbH | Verfahren zur Herstellung eines elektrischen Messwiderstandes |
| WO1992015101A1 (de) | 1991-02-15 | 1992-09-03 | Siemens Aktiengesellschaft | Hochtemperatur-platinmetall-temperatursensor |
| EP0543413A1 (en) | 1991-11-22 | 1993-05-26 | Ngk Spark Plug Co., Ltd | Resistor type physical quantity sensor |
| DE19540194C1 (de) | 1995-10-30 | 1997-02-20 | Heraeus Sensor Gmbh | Widerstandsthermometer aus einem Metall der Platingruppe |
| DE19750123A1 (de) | 1997-11-13 | 1999-06-10 | Heraeus Sensor Nite Gmbh | Verfahren zur Herstellung einer Sensoranordnung für die Temperaturmessung |
| EP0973020A1 (de) | 1998-07-16 | 2000-01-19 | Heraeus Electro-Nite International N.V. | Elektrischer Temperatur-Sensor mit Mehrfachschicht |
| WO2000004356A1 (de) | 1998-07-16 | 2000-01-27 | Heraeus Electro-Nite International N.V. | Verfahren zur herstellung eines temperaturabhängigen widerstandes sowie elektrischer temperatur-sensor |
| WO2000042402A1 (de) | 1999-01-14 | 2000-07-20 | Sensotherm Temperatursensorik Gmbh | Platintemperatursensor und verfahren zur herstellung desselben |
| DE19901183C2 (de) | 1999-01-14 | 2001-01-25 | Sensotherm Temperatursensorik | Platintemperatursensor und Herstellungsverfahren für denselben |
| DE10016415A1 (de) | 2000-04-01 | 2001-10-11 | Bosch Gmbh Robert | Sensorelement, insbesondere Temperaturfühler |
| DE10104493A1 (de) | 2001-01-31 | 2002-08-22 | Epiq Sensor Nite N V | Temperatursensor und Verfahren zur Herstellung eines Temperatursensors |
| DE10358282A1 (de) | 2003-12-12 | 2005-07-28 | Georg Bernitz | Bauelement und Verfahren zu dessen Herstellung |
| EP1619485A1 (de) | 2004-02-24 | 2006-01-25 | Electrovac, Fabrikation elektrotechnischer Spezialartikel Gesellschaft m.b.H. | Temperaturmessfühler |
| DE102004034185B3 (de) | 2004-07-15 | 2006-01-05 | Zitzmann, Heinrich, Dr. | Temperaturfühler und Verfahren zu dessen Herstellung |
| DE102007038680A1 (de) | 2007-08-15 | 2009-02-26 | Heraeus Sensor Technology Gmbh | Rußsensor mit glatter, reiner Al2O3-Oberfläche |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5855149B2 (ja) | 2016-02-09 |
| DE102007046900B4 (de) | 2011-07-21 |
| US8183974B2 (en) | 2012-05-22 |
| JP2009085952A (ja) | 2009-04-23 |
| KR101489001B1 (ko) | 2015-02-02 |
| JP5976186B2 (ja) | 2016-08-23 |
| JP2016011964A (ja) | 2016-01-21 |
| DE102007046900A1 (de) | 2009-04-30 |
| FR2921724A1 (fr) | 2009-04-03 |
| FR2921724B1 (fr) | 2014-03-21 |
| JP5641683B2 (ja) | 2014-12-17 |
| JP2014132272A (ja) | 2014-07-17 |
| KR20090033131A (ko) | 2009-04-01 |
| US20090115567A1 (en) | 2009-05-07 |
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