BR8201025A - Aparelho sensor de gas,processo para fabricar o mesmo material sensor de gas,processo para fabricar um monitor de gas - Google Patents
Aparelho sensor de gas,processo para fabricar o mesmo material sensor de gas,processo para fabricar um monitor de gasInfo
- Publication number
- BR8201025A BR8201025A BR8201025A BR8201025A BR8201025A BR 8201025 A BR8201025 A BR 8201025A BR 8201025 A BR8201025 A BR 8201025A BR 8201025 A BR8201025 A BR 8201025A BR 8201025 A BR8201025 A BR 8201025A
- Authority
- BR
- Brazil
- Prior art keywords
- manufacture
- gas sensor
- gas
- appliance
- monitor
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 2
- 238000000034 method Methods 0.000 title 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/238,768 US4423407A (en) | 1981-02-27 | 1981-02-27 | Apparatus and method for measuring the concentration of gases |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8201025A true BR8201025A (pt) | 1983-01-04 |
Family
ID=22899229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8201025A BR8201025A (pt) | 1981-02-27 | 1982-02-26 | Aparelho sensor de gas,processo para fabricar o mesmo material sensor de gas,processo para fabricar um monitor de gas |
Country Status (5)
Country | Link |
---|---|
US (1) | US4423407A (pt) |
EP (1) | EP0059557B1 (pt) |
JP (1) | JPS57157149A (pt) |
BR (1) | BR8201025A (pt) |
CA (1) | CA1178456A (pt) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4453151A (en) * | 1982-06-07 | 1984-06-05 | Leary David J | Semiconductor gas sensor |
DE3519410A1 (de) * | 1985-05-30 | 1986-12-04 | Siemens AG, 1000 Berlin und 8000 München | Betriebsverfahren und sensor fuer gasanalyse |
US4892834A (en) * | 1986-08-07 | 1990-01-09 | Eic Laboratories, Inc. | Chemical sensor |
US4906440A (en) * | 1986-09-09 | 1990-03-06 | The United States Of America As Represented By The Secretary Of The Air Force | Sensor for detecting chemicals |
JPH01109250A (ja) * | 1987-10-22 | 1989-04-26 | Toshiba Corp | ガスセンサ |
ES2030693T3 (es) * | 1986-10-28 | 1992-11-16 | Figaro Engineering Inc. | Sensor y procedimiento para su fabricacion. |
AU604142B2 (en) * | 1987-05-26 | 1990-12-06 | Transducer Research, Inc. | Electrochemical micro sensor |
US4865717A (en) * | 1987-05-26 | 1989-09-12 | Transducer Research, Inc. | Electrochemical micro sensor |
US4980557A (en) * | 1988-06-06 | 1990-12-25 | Extrel Corporation | Method and apparatus surface ionization particulate detectors |
US4893108A (en) * | 1988-06-24 | 1990-01-09 | The United States Of America As Represented By The Secretary Of The Air Force | Halogen detection with solid state sensor |
US4953387A (en) * | 1989-07-31 | 1990-09-04 | The Regents Of The University Of Michigan | Ultrathin-film gas detector |
US5145645A (en) * | 1990-06-15 | 1992-09-08 | Spectral Sciences, Inc. | Conductive polymer selective species sensor |
US5262127A (en) * | 1992-02-12 | 1993-11-16 | The Regents Of The University Of Michigan | Solid state chemical micro-reservoirs |
US5302935A (en) * | 1992-12-08 | 1994-04-12 | Eastman Kodak Company | Renewable gas sensor, renewable gas sensor base and method for renewing a gas sensor |
GB9226453D0 (en) * | 1992-12-18 | 1993-02-10 | Johnson Matthey Plc | Metal oxide catalyst |
GB9306594D0 (en) * | 1993-03-30 | 1993-05-26 | Univ Keele | Sensor |
GB9316955D0 (en) | 1993-08-14 | 1993-09-29 | Johnson Matthey Plc | Improvements in catalysts |
US5372785A (en) * | 1993-09-01 | 1994-12-13 | International Business Machines Corporation | Solid-state multi-stage gas detector |
US5742516A (en) * | 1994-03-17 | 1998-04-21 | Olcerst; Robert | Indoor air quality and ventilation assessment monitoring device |
ES2212739B1 (es) * | 2003-01-02 | 2005-04-01 | Sociedad Española De Carburos Metalicos, S.A. | Sistema analizador para la deteccion de gases reductores y oxidantes en un gas portador y sensor de gases basado en oxidos metalicos de tipo semiconductor. |
US6868350B2 (en) * | 2003-04-11 | 2005-03-15 | Therm-O-Disc, Incorporated | Method and apparatus for the detection of the response of a sensing device |
US7112304B2 (en) * | 2003-04-11 | 2006-09-26 | Therm-O-Disc, Incorporated | Robust chemiresistor sensor |
US8024133B2 (en) * | 2006-11-29 | 2011-09-20 | California Institute Of Technology | System for detecting and estimating concentrations of gas or liquid analytes |
FR2947634B1 (fr) * | 2009-07-06 | 2012-07-27 | Otv Sa | Dispositif de mesure d'au moins une propriete d'une eau |
WO2011119469A1 (en) | 2010-03-22 | 2011-09-29 | T3 Scientific Llc | Hydrogen selective protective coating, coated article and method |
EP2762868B1 (en) * | 2013-01-31 | 2017-03-15 | Sensirion AG | Diffusion based metal oxide gas sensor |
US11408622B2 (en) * | 2015-08-27 | 2022-08-09 | Delta T, Llc | Control with enhanced sensing capabilities |
US10514371B2 (en) | 2017-11-01 | 2019-12-24 | Savannah River Nuclear Solutions, Llc | Reactive diffusive gradient in thin-film sampler and mercury speciation by use of same |
US11319225B2 (en) | 2018-10-24 | 2022-05-03 | Savannah River Nuclear Solutions, Llc | Modular system and method for mercury speciation in a fluid sample |
US11506622B2 (en) * | 2019-08-08 | 2022-11-22 | Figaro Engineering Inc. | Gas detector comprising plural gas sensors and gas detection method thereby |
Family Cites Families (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3092799A (en) * | 1958-02-18 | 1963-06-04 | Nat Res Dev | Apparatus for detecting combustible gases having an electrically conductive member enveloped in a refractory material |
US3428892A (en) * | 1965-09-20 | 1969-02-18 | James E Meinhard | Electronic olfactory detector having organic semiconductor barrier layer structure |
US3479257A (en) * | 1966-11-25 | 1969-11-18 | Gen Electric | Methods and apparatus for measuring the content of hydrogen or reducing gases in an atmosphere |
US3578409A (en) * | 1967-08-23 | 1971-05-11 | Trw Inc | Sensors unaffected by humidity changes to detect toxic oxidizing vapors |
DE1773110A1 (de) * | 1968-04-02 | 1971-09-23 | Philips Nv | Element zur Bestimmung des Sauerstoffpartialdruckes |
US3564474A (en) * | 1968-06-04 | 1971-02-16 | Nat Res Dev | Electrically heatable elements |
US3550057A (en) * | 1968-11-29 | 1970-12-22 | Honeywell Inc | Sensing element |
US3564476A (en) * | 1969-07-30 | 1971-02-16 | Cts Corp | Electrical component including intrinsically equalized resistances |
BE771767A (fr) * | 1970-08-26 | 1971-12-31 | Nat Res Dev | Dispositifs semi-conducteurs sensibles aux gaz |
US3865550A (en) * | 1970-08-26 | 1975-02-11 | Nat Res Dev | Semi-conducting gas sensitive devices |
US3732519A (en) * | 1970-09-23 | 1973-05-08 | N Taguchi | Semiconductor gas detecting device |
US3793605A (en) * | 1971-07-16 | 1974-02-19 | Signetics Corp | Ion sensitive solid state device and method |
US3900815A (en) * | 1971-07-26 | 1975-08-19 | Naoyoshi Taguchi | Element for detection of combustible gases and smoke |
US3924219A (en) * | 1971-12-22 | 1975-12-02 | Minnesota Mining & Mfg | Gas detection device |
US3872419A (en) * | 1972-06-15 | 1975-03-18 | Alexander J Groves | Electrical elements operable as thermisters, varisters, smoke and moisture detectors, and methods for making the same |
US3951603A (en) * | 1972-07-08 | 1976-04-20 | Hitachi, Ltd. | Gas-sensor element and method for detecting reducing gas or oxygen gas |
US3953173A (en) * | 1972-07-08 | 1976-04-27 | Hitachi, Ltd. | Gas-sensor element and method for detecting oxidizable gas |
JPS5431714B2 (pt) * | 1972-09-20 | 1979-10-09 | ||
US3820958A (en) * | 1973-01-29 | 1974-06-28 | Dow Chemical Co | Hydrogen sulfide monitor |
US3901067A (en) * | 1973-06-21 | 1975-08-26 | Gen Monitors | Semiconductor gas detector and method therefor |
JPS5039998A (pt) * | 1973-08-14 | 1975-04-12 | ||
JPS5317440B2 (pt) * | 1973-10-19 | 1978-06-08 | ||
SE369636B (pt) * | 1973-11-28 | 1974-09-09 | Ericsson Telefon Ab L M | |
US3970431A (en) * | 1974-01-23 | 1976-07-20 | Stanford Research Institute | Carbon monoxide gas detector |
FR2273276B1 (pt) * | 1974-05-27 | 1978-08-04 | Radiotechnique Compelec | |
NL7411044A (nl) * | 1974-08-19 | 1976-02-23 | Philips Nv | Meetcel voor het bepalen van zuurstofconcen- traties in een gasmengsel. |
DE2442593B2 (de) * | 1974-09-05 | 1979-11-15 | Draegerwerk Ag, 2400 Luebeck | Fühler zur Feststellung und/oder Messung von Alkohol und ein Herstellverfahren dazu |
SE387444B (sv) * | 1974-09-09 | 1976-09-06 | C M Svensson | Detektor for pavisande av vete |
US3959764A (en) * | 1974-10-09 | 1976-05-25 | Dictaphone Corporation | Gas analyzing element |
US3999947A (en) * | 1974-10-11 | 1976-12-28 | Matsushita Electric Industrial Co., Ltd. | Reducing gas sensor and a method of producing the same |
GB1477082A (en) * | 1974-10-15 | 1977-06-22 | Tokyo Shibaura Electric Co | Gas-sensing material |
US3911386A (en) * | 1975-01-15 | 1975-10-07 | Ford Motor Co | Exhaust gas air fuel ratio sensor |
US4016308A (en) * | 1975-04-09 | 1977-04-05 | Plessey Incorporated | Humidity sensor, material therefor and method |
US4039941A (en) * | 1975-05-09 | 1977-08-02 | Stanford Research Institute | Gas sensor |
US4017820A (en) * | 1975-07-25 | 1977-04-12 | Illinois Tool Works Inc. | Humidity sensor with multiple electrode layers separated by a porous monolithic ceramic dielectric structure |
US4086556A (en) * | 1975-09-18 | 1978-04-25 | Matsushita Electric Industrial Co., Ltd. | Humidity sensitive ceramic resistor |
FR2334100A1 (fr) * | 1975-12-05 | 1977-07-01 | Louyot Comptoir Lyon Alemand | Element detecteur de la presence de gaz combustibles dans une atmosphere gazeuse comportant au moins un oxydant |
US4012709A (en) * | 1976-01-12 | 1977-03-15 | Ford Motor Company | Cobalt-magnesium monoxide alloy ceramic partial pressure of oxygen sensor |
GB1518470A (en) * | 1976-01-29 | 1978-07-19 | Nittan Co Ltd | Gas sensing element |
US4011538A (en) * | 1976-01-30 | 1977-03-08 | Illinois Tool Works Inc. | Fluid sensor |
US4074243A (en) * | 1976-06-18 | 1978-02-14 | Erdco Engineering Corporation | Anticipatory flammable gas detection system |
GB1516039A (en) * | 1976-06-18 | 1978-06-28 | English Electric Valve Co Ltd | Combustible gas detectors |
US4030340A (en) * | 1976-07-22 | 1977-06-21 | General Monitors, Inc. | Hydrogen gas detector |
US4030349A (en) * | 1976-08-16 | 1977-06-21 | Beckman Instruments, Inc. | Engine analysis apparatus |
JPS5853306B2 (ja) * | 1976-10-18 | 1983-11-28 | 日産自動車株式会社 | ガス濃度検出装置 |
US4130797A (en) * | 1976-11-25 | 1978-12-19 | Nippon Soken, Inc. | Gas component sensing apparatus |
JPS5937779B2 (ja) * | 1977-04-20 | 1984-09-12 | 株式会社豊田中央研究所 | 酸素濃度検出素子 |
US4147513A (en) * | 1977-09-26 | 1979-04-03 | Bendix Autolite Corporation | Method and apparatus for measuring the O2 content of a gas |
US4151503A (en) * | 1977-10-05 | 1979-04-24 | Ford Motor Company | Temperature compensated resistive exhaust gas sensor construction |
JPS5853862B2 (ja) * | 1978-02-20 | 1983-12-01 | 松下電器産業株式会社 | 可燃性ガス検知素子 |
US4169369A (en) * | 1978-07-24 | 1979-10-02 | General Motors Corporation | Method and thin film semiconductor sensor for detecting NOx |
JPS588743B2 (ja) * | 1978-12-08 | 1983-02-17 | 松下電器産業株式会社 | ガス・湿度センサ |
WO1980001610A1 (en) * | 1979-01-31 | 1980-08-07 | Rosemount Eng Co Ltd | A method of detecting oxygen and an oxygen sensor therefor |
US4265844A (en) * | 1979-05-16 | 1981-05-05 | Marcon Electronics Co. Ltd. | Method of manufacturing a voltage-nonlinear resistor |
US4338223A (en) * | 1979-05-30 | 1982-07-06 | Marcon Electronics Co., Ltd. | Method of manufacturing a voltage-nonlinear resistor |
JPS5618750A (en) * | 1979-07-25 | 1981-02-21 | Ricoh Co Ltd | Gas detector |
-
1981
- 1981-02-27 US US06/238,768 patent/US4423407A/en not_active Expired - Fee Related
-
1982
- 1982-02-17 EP EP82300816A patent/EP0059557B1/en not_active Expired
- 1982-02-25 CA CA000397096A patent/CA1178456A/en not_active Expired
- 1982-02-25 JP JP57028245A patent/JPS57157149A/ja active Pending
- 1982-02-26 BR BR8201025A patent/BR8201025A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
EP0059557B1 (en) | 1988-11-30 |
EP0059557A3 (en) | 1983-11-23 |
US4423407A (en) | 1983-12-27 |
JPS57157149A (en) | 1982-09-28 |
CA1178456A (en) | 1984-11-27 |
EP0059557A2 (en) | 1982-09-08 |
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