FR2501374B1 - - Google Patents
Info
- Publication number
- FR2501374B1 FR2501374B1 FR8203404A FR8203404A FR2501374B1 FR 2501374 B1 FR2501374 B1 FR 2501374B1 FR 8203404 A FR8203404 A FR 8203404A FR 8203404 A FR8203404 A FR 8203404A FR 2501374 B1 FR2501374 B1 FR 2501374B1
- 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
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2268—Arrangements for correcting or for compensating unwanted effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3109224A DE3109224C2 (de) | 1981-03-05 | 1981-03-05 | Schaltungsanordnung zum Nachweis von Gasanteilen in einer zu überwachenden Gasatmosphäre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2501374A1 FR2501374A1 (fr) | 1982-09-10 |
| FR2501374B1 true FR2501374B1 (US20100012521A1-20100121-C00001.png) | 1985-03-22 |
Family
ID=6126905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8203404A Granted FR2501374A1 (fr) | 1981-03-05 | 1982-03-02 | Dispositif de mesure electronique pour un capteur dispose dans un appareil de mesure |
Country Status (5)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3217798A1 (de) * | 1982-05-12 | 1983-11-24 | Hans-Jörg Dipl.-Kfm. 4400 Münster Hübner | Verfahren und messgeraet zum messen und verarbeiten von kenngroessen der umgebungsatmosphaere, insbesondere unter tage |
| US4462246A (en) * | 1982-06-04 | 1984-07-31 | Sierra Monitor Corporation | Percent oxygen gauge |
| FR2557695A1 (fr) * | 1984-01-03 | 1985-07-05 | Thomson Csf | Capteur de force a ondes elastiques de surface |
| US4874500A (en) * | 1987-07-15 | 1989-10-17 | Sri International | Microelectrochemical sensor and sensor array |
| US4829810A (en) * | 1988-01-04 | 1989-05-16 | Aluminum Company Of America | Filament drive circuit |
| DE3840322A1 (de) * | 1988-11-30 | 1990-05-31 | Hartmann & Braun Ag | Vorrichtung zur ueberwachung des gasstromes in einem gasanalysator und zur korrektur von druck- und durchflussbedingten stoereinfluessen auf dessen messsignal |
| US4947339A (en) * | 1988-12-01 | 1990-08-07 | Jan Czekajewski | Method and apparatus for measuring respiration, oxidation and similar interacting between a sample and a selected component of a fluid medium |
| JP2942445B2 (ja) * | 1993-08-20 | 1999-08-30 | 株式会社日立製作所 | 空燃比センサ |
| US5394934A (en) * | 1994-04-15 | 1995-03-07 | American Standard Inc. | Indoor air quality sensor and method |
| DE4428694C2 (de) * | 1994-08-12 | 1996-06-20 | Wagner Alarm Sicherung | Luftdruckkompensierte Branderkennungsvorrichtung und Verfahren |
| US5933245A (en) * | 1996-12-31 | 1999-08-03 | Honeywell Inc. | Photoacoustic device and process for multi-gas sensing |
| DE102005006675B4 (de) * | 2005-02-15 | 2021-06-17 | Continental Teves Ag & Co. Ohg | Verfahren zur Fehlerkompensation eines Messverstärkers und Computerprogrammprodukt |
| EP2336762B1 (de) * | 2009-12-14 | 2017-10-18 | Siemens Aktiengesellschaft | Kohlendioxid-Sensor und zugehöriges Verfahren zur Erzeugung eines Gasmesswerts |
| GB2528025B (en) | 2014-05-02 | 2019-03-06 | Fathom Systems Ltd | Determining the partial pressure of a gas in a pressure vessel |
| GB2535691B (en) * | 2015-01-13 | 2018-01-17 | Fathom Systems Ltd | Determining the partial pressure of a gas, calibrating a pressure sensor |
| CN109696413A (zh) * | 2018-12-20 | 2019-04-30 | 南京信息工程大学 | 采样气室、基于qpso算法的红外气体传感器及气压补偿方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685346A (en) * | 1970-01-16 | 1972-08-22 | Yellow Springs Instr | Direct reading quantitative gas measuring device |
| US3663409A (en) * | 1970-05-14 | 1972-05-16 | Beckman Instruments Inc | Pressure compensation of membranetype sensors |
| BE792314A (fr) * | 1971-12-06 | 1973-06-05 | Rhone Poulenc Sa | Perfectionnement aux reins artificiels |
| FR2219724A6 (US20100012521A1-20100121-C00001.png) * | 1973-02-28 | 1974-09-20 | Sopelem | |
| US3958122A (en) * | 1974-12-19 | 1976-05-18 | United Technologies Corporation | Exhaust gas analyzer having pressure and temperature compensation |
| US4008601A (en) * | 1975-06-16 | 1977-02-22 | The United States Of America As Represented By The Secretary Of The Army | Fluidic partial pressure sensor |
| JPS5244688A (en) * | 1975-10-03 | 1977-04-07 | Hitachi Zosen Corp | Method of automatically measuring density of oxygen |
-
1981
- 1981-03-05 DE DE3109224A patent/DE3109224C2/de not_active Expired
-
1982
- 1982-03-02 FR FR8203404A patent/FR2501374A1/fr active Granted
- 1982-03-03 JP JP57032495A patent/JPS57211050A/ja active Pending
- 1982-03-04 GB GB8206441A patent/GB2094483B/en not_active Expired
- 1982-03-04 US US06/354,905 patent/US4419211A/en not_active Expired - Fee Related
-
1990
- 1990-08-23 JP JP1990087498U patent/JPH0378251U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB2094483A (en) | 1982-09-15 |
| JPS57211050A (en) | 1982-12-24 |
| JPH0378251U (US20100012521A1-20100121-C00001.png) | 1991-08-07 |
| DE3109224A1 (de) | 1982-09-30 |
| FR2501374A1 (fr) | 1982-09-10 |
| GB2094483B (en) | 1984-11-14 |
| DE3109224C2 (de) | 1986-09-18 |
| US4419211A (en) | 1983-12-06 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |