FR2330001B1 - - Google Patents
Info
- Publication number
- FR2330001B1 FR2330001B1 FR7632423A FR7632423A FR2330001B1 FR 2330001 B1 FR2330001 B1 FR 2330001B1 FR 7632423 A FR7632423 A FR 7632423A FR 7632423 A FR7632423 A FR 7632423A FR 2330001 B1 FR2330001 B1 FR 2330001B1
- Authority
- FR
- France
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- 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
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62584875A | 1975-10-28 | 1975-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2330001A1 FR2330001A1 (fr) | 1977-05-27 |
| FR2330001B1 true FR2330001B1 (US20030199744A1-20031023-C00003.png) | 1982-08-27 |
Family
ID=24507858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7632423A Granted FR2330001A1 (fr) | 1975-10-28 | 1976-10-27 | Circuit de detection de gaz combustibles dans l'atmosphere d'une mine |
Country Status (6)
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2658734C3 (de) * | 1976-12-24 | 1979-10-31 | Draegerwerk Ag, 2400 Luebeck | Funktionsüberwachung für einen elektrochemischen Gassensor |
| CH629905A5 (de) * | 1978-07-17 | 1982-05-14 | Cerberus Ag | Gas- und/oder brandmeldeanlage. |
| DE3031555C2 (de) * | 1980-08-21 | 1985-03-14 | Auergesellschaft Gmbh, 1000 Berlin | Schaltungsanordnung für ein Gasmeß- und Gasanalysegerät |
| GB2105849B (en) * | 1981-09-11 | 1985-05-15 | Coal Ind | Electrical gas analyser for sensing at least two gases |
| US4465318A (en) * | 1981-10-13 | 1984-08-14 | Coal Industry (Patents) Limited | Rotary cutting head for mining machines with means for inducing airflow and sensing thereof |
| GB2185577B (en) * | 1986-01-21 | 1989-11-29 | Draegerwerk Ag | Method and apparatus for detection of combustible gases |
| US4730479A (en) * | 1986-06-23 | 1988-03-15 | The Standard Oil Company | Temperature and humidity compensation for gas detection apparatus |
| IT1262560B (it) * | 1993-09-21 | 1996-07-04 | Controfugas Srl | Apparecchio elettronico per la rivelazione di gas infiammabili. |
| DE19722549A1 (de) * | 1997-05-30 | 1998-12-03 | Bosch Gmbh Robert | Elektrische Meßeinrichtung bzw. elektrisches Meßverfahren zur Erzeugung eines elektrischen Signals |
| DE10161996A1 (de) * | 2001-12-18 | 2003-07-03 | Ballard Power Systems | Verfahren zum Einsatz bei elektrischen Datenbussystemen in Verkehrsmitteln |
| JP4106369B2 (ja) * | 2005-03-31 | 2008-06-25 | 日本特殊陶業株式会社 | ガスセンサ制御装置 |
| US20090231120A1 (en) * | 2008-03-13 | 2009-09-17 | Chung Donny | Integrated apparatus for medical alarm system |
| CN102365601B (zh) * | 2009-03-27 | 2015-04-22 | Abb研究有限公司 | 用于控制周围空气参数的系统 |
| CN102182514B (zh) * | 2011-04-01 | 2013-10-23 | 淮南市智能电器厂 | 矿用报警器 |
| CN102777212A (zh) * | 2012-08-10 | 2012-11-14 | 中国建筑第四工程局有限公司 | 隧道瓦斯的监控方法 |
| CN103343701B (zh) * | 2013-07-23 | 2018-09-21 | 北京圣博亚科技有限公司 | 一种井下环境监测预警系统及其智能传感器 |
| CN103643997B (zh) * | 2013-11-20 | 2016-05-11 | 天地（常州）自动化股份有限公司 | 一种小风速掘进工作面的瓦斯涌出量的计算方法 |
| CN107842393A (zh) * | 2016-09-17 | 2018-03-27 | 长沙闽壹湖电子科技有限责任公司 | 一种基于Zigbee无线网络的瓦斯浓度检测系统 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147465A (en) * | 1960-12-27 | 1964-09-01 | Mine Safety Appliances Co | Methane alarm and control system |
| US3311455A (en) * | 1963-04-30 | 1967-03-28 | Barton Instr Corp | Detector for combustible gas |
| FR1415409A (fr) * | 1964-12-03 | 1965-10-22 | Perfectionnement apporté aux appareils de mesure portatifs pour la détermination des gaz dans l'air des mines de fond | |
| US3429178A (en) * | 1965-01-07 | 1969-02-25 | Enoch J Durbin | Measuring system |
| US3399398A (en) * | 1965-07-27 | 1968-08-27 | Mine Safety Appliances Co | Combustible gas monitoring system |
| US3482233A (en) * | 1967-04-13 | 1969-12-02 | Eastern Co | Gas detector system |
| US3496558A (en) * | 1967-07-03 | 1970-02-17 | Univ Utah | Methane and coal dust detection |
| US3519391A (en) * | 1967-09-22 | 1970-07-07 | Karl Winter | Method of and apparatus for measuring combustible constituents of gas samples |
| US3717858A (en) * | 1970-08-12 | 1973-02-20 | D Hadden | Two conductor telemetering system |
| US3678489A (en) * | 1971-02-08 | 1972-07-18 | Alexandr Nazarievich Scherban | Apparatus for determining the concentration of combustible gases and vapors |
| US3815114A (en) * | 1972-10-12 | 1974-06-04 | R Johnson | Multi-channel combustible gas detector |
| FR2208520A5 (US20030199744A1-20031023-C00003.png) * | 1972-11-29 | 1974-06-21 | Charbonnages De France | |
| US3879717A (en) * | 1974-06-19 | 1975-04-22 | K F Ind Inc | Portable methane monitor and alarm system |
-
1976
- 1976-10-18 ZA ZA00766200A patent/ZA766200B/xx unknown
- 1976-10-20 GB GB43545/76A patent/GB1559394A/en not_active Expired
- 1976-10-25 DE DE19762648162 patent/DE2648162A1/de not_active Withdrawn
- 1976-10-27 FR FR7632423A patent/FR2330001A1/fr active Granted
- 1976-11-02 AU AU19245/76A patent/AU1924576A/en not_active Expired
- 1976-12-15 US US05/750,877 patent/US4064498A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2648162A1 (de) | 1977-05-12 |
| FR2330001A1 (fr) | 1977-05-27 |
| US4064498A (en) | 1977-12-20 |
| GB1559394A (en) | 1980-01-16 |
| ZA766200B (en) | 1978-05-30 |
| AU1924576A (en) | 1978-05-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |