DE3640734A1 - Sensor with electronic humidity and temperature correction - Google Patents
Sensor with electronic humidity and temperature correctionInfo
- Publication number
- DE3640734A1 DE3640734A1 DE19863640734 DE3640734A DE3640734A1 DE 3640734 A1 DE3640734 A1 DE 3640734A1 DE 19863640734 DE19863640734 DE 19863640734 DE 3640734 A DE3640734 A DE 3640734A DE 3640734 A1 DE3640734 A1 DE 3640734A1
- Authority
- DE
- Germany
- Prior art keywords
- humidity
- temperature
- sensor
- correct
- measurement
- 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.)
- Withdrawn
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 claims 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract 3
- 239000011159 matrix material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
-
- 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
- G01N33/0026—General constructional details of gas analysers, e.g. portable test equipment using an alternating circulation of another gas
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Atmospheric Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (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)
Abstract
Description
Es ist bekannt, daß Halbleiter-Sensoren, insbesondere auf Zinndioxid-Basis, sehr stark querempfindlich sind gegen über Temperatur- und Feuchteschwankungen.It is known that semiconductor sensors, in particular Tin dioxide base, are very cross sensitive to about temperature and humidity fluctuations.
Teilweise ist die Schwankung derart groß, daß bis zu 70% Meßwertverschiebungen auftreten können und zwar durch unterschiedliche Feuchte.Sometimes the fluctuation is so great that up to 70% measured value shifts can occur due to different humidity.
Ähnlich groß ist der Einfluß bei Temperaturschwankungen. Bekannt ist, über Temperaturfühler eine Temperatur kompensation herbeizuführen. Die Feuchte läßt sich technisch nur als relative Feuchte messen. Dieser Meßwert führt jedoch zu ganz unterschiedlichen absoluten Feuchten bei unterschiedlicher Lufttemperatur, so daß das Maß der relativen Feuchte nicht unmittelbar zur Korrektur des Feuchteabflusses herangezogen werden kann.The influence of temperature fluctuations is similar. It is known to use a temperature sensor bring about compensation. The humidity can be measure technically only as relative humidity. This reading however leads to very different absolute humidity levels at different air temperatures, so that the degree of relative humidity not immediately to correct the Moisture drainage can be used.
Daher wird die Korrektur sehr aufwendig, da eine Korrektur im allgemeinen nur über einen Rechner gelöst werden kann. Erfindungsgemäß wird daher ein vereinfachter, wirtschaftlicher Weg vorge schlagen, der darin besteht, daß die Temperatur werte in einer zweidimensionalen Matrix festgelegt werden, und so kann in einem kleinen Mikroprozessor von nur 4 K Kapazität ein Feld mit 200 Werten abge speichert werden. Dieses genügt, um eine genügend genaue Kompensation vorzunehmen.Therefore, the correction is very complex, because a Correction generally only via a computer can be solved. According to the invention a simplified, economical way is featured beat, which is that the temperature values in a two-dimensional matrix can be, and so in a small microprocessor a field with 200 values from only 4 K capacity be saved. This is enough to make one sufficient make exact compensation.
In erfindungsgemäßer Anordnung ist in der
Zeichnung dargestellt:
mit (1) der Gassensor;
mit (2) der Temperaturfühler;
mit (3) der Feuchtesensor
die gemeinsam ihre Werte in einen Mikroprozessor
(4) geben.
In the arrangement according to the invention, the drawing shows:
with ( 1 ) the gas sensor;
with ( 2 ) the temperature sensor;
with ( 3 ) the humidity sensor which together enter their values into a microprocessor ( 4 ).
Der Mikroprozessor sucht für die Temperatur- und Feuchtewerte den jeweils entsprechenden Korrekturwert heraus mit dem der Gassensorwert korrigiert wird.The microprocessor searches for the temperature and Humidity values the corresponding correction value with which the gas sensor value is corrected.
Dadurch wird ein temperatur- und feuchte-unabhängiges Ausgangssignal am Ausgang erhalten.This makes it independent of temperature and humidity Receive output signal at the output.
Claims (1)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863640734 DE3640734A1 (en) | 1986-11-28 | 1986-11-28 | Sensor with electronic humidity and temperature correction |
JP62504882A JPH01500459A (en) | 1986-08-02 | 1987-07-29 | Device for detecting the content of various harmful substances in gas streams |
DE8787905202T DE3776125D1 (en) | 1986-08-02 | 1987-07-29 | DEVICE FOR DETECTING DIFFERENT POLLUTANT CONTENTS OF GAS FLOWS. |
PCT/EP1987/000411 WO1988001057A2 (en) | 1986-08-02 | 1987-07-29 | Device for detecting different pollutants contained in gas streams |
AT87905202T ATE71727T1 (en) | 1986-08-02 | 1987-07-29 | DEVICE FOR DETECTING DIFFERENT POLLUTANT CONTENT IN GAS FLOW. |
EP87905202A EP0275301B1 (en) | 1986-08-02 | 1987-07-29 | Device for detecting different pollutants contained in gas streams |
US07/177,549 US4875406A (en) | 1986-08-02 | 1987-07-29 | Device for detecting different pollutants in gas streams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863640734 DE3640734A1 (en) | 1986-11-28 | 1986-11-28 | Sensor with electronic humidity and temperature correction |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3640734A1 true DE3640734A1 (en) | 1988-06-09 |
Family
ID=6315027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863640734 Withdrawn DE3640734A1 (en) | 1986-08-02 | 1986-11-28 | Sensor with electronic humidity and temperature correction |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3640734A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3840961A1 (en) * | 1988-12-05 | 1990-06-07 | Hellige Gmbh | Ion-sensitive electrode and method for compensating for the temperature dependence in such electrodes |
DE3840962A1 (en) * | 1988-12-05 | 1990-06-07 | Hellige Gmbh | Ion-sensitive electrode and method for compensating for the temperature dependence in such electrodes |
WO1993008550A1 (en) * | 1991-10-24 | 1993-04-29 | Capteur Sensors & Analysers Ltd. | Fire detector and a method of detecting a fire |
EP0677740A2 (en) * | 1994-04-13 | 1995-10-18 | General Signal Corporation | Humidity compensated carbon dioxide gas measurement and control system |
DE102006035173A1 (en) * | 2006-07-06 | 2008-01-17 | Woelke Industrieelektronik Gmbh | Gas i.e. methane, concentration-measuring values correcting method, involves determining respective parameter measured value together with given concentration measured value before usage of sensors, control unit and memory |
FR2931944A3 (en) * | 2008-06-02 | 2009-12-04 | Renault Sas | Air quantity measuring bench for passenger compartment of car, has burnt gas supplying conduit with outlet connected to or positioned near air intake socket, and analysis units analyzing air present in passenger compartment |
EP2887057A1 (en) * | 2013-12-17 | 2015-06-24 | Sensirion AG | Device and method of humidity compensated gas concentration monitoring by thermal conductivity measurements |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3201474A1 (en) * | 1982-01-19 | 1983-07-28 | Ludwig Bollmann Kg, 7703 Rielasingen | Method of measuring the moisture content of materials and device for this purpose |
DE3217799A1 (en) * | 1982-05-12 | 1983-11-17 | Hans-Jörg Dipl.-Kfm. 4400 Münster Hübner | Measuring instrument for measuring and processing characteristic quantities of the environmental atmosphere, particularly below ground |
DE3242967A1 (en) * | 1982-11-20 | 1984-05-24 | Hans-Jörg Dipl.-Kfm. 4400 Münster Hübner | Method and measuring instrument for measuring and processing characteristic quantities of the environmental atmosphere, particularly below ground |
DE3309802A1 (en) * | 1983-03-18 | 1984-09-20 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Electronic system for motor vehicles |
DE3411306A1 (en) * | 1983-03-28 | 1984-10-11 | Ondyne Inc., Concord, Calif. | HYGROMETER PROBE |
DE3318714A1 (en) * | 1983-05-21 | 1984-11-22 | Karl-Heinz 6104 Seeheim-Jugenheim Schmidt | Device for recording and displaying weather-determining data |
DE3318977A1 (en) * | 1983-05-25 | 1984-11-29 | Siemens AG, 1000 Berlin und 8000 München | Measurement value pick-up with an information carrier containing operating data |
DE3437445A1 (en) * | 1984-10-12 | 1986-05-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method and apparatus for compensating for the temperature dependence of an electrochemical measuring cell |
-
1986
- 1986-11-28 DE DE19863640734 patent/DE3640734A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3201474A1 (en) * | 1982-01-19 | 1983-07-28 | Ludwig Bollmann Kg, 7703 Rielasingen | Method of measuring the moisture content of materials and device for this purpose |
DE3217799A1 (en) * | 1982-05-12 | 1983-11-17 | Hans-Jörg Dipl.-Kfm. 4400 Münster Hübner | Measuring instrument for measuring and processing characteristic quantities of the environmental atmosphere, particularly below ground |
DE3242967A1 (en) * | 1982-11-20 | 1984-05-24 | Hans-Jörg Dipl.-Kfm. 4400 Münster Hübner | Method and measuring instrument for measuring and processing characteristic quantities of the environmental atmosphere, particularly below ground |
DE3309802A1 (en) * | 1983-03-18 | 1984-09-20 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Electronic system for motor vehicles |
DE3411306A1 (en) * | 1983-03-28 | 1984-10-11 | Ondyne Inc., Concord, Calif. | HYGROMETER PROBE |
DE3318714A1 (en) * | 1983-05-21 | 1984-11-22 | Karl-Heinz 6104 Seeheim-Jugenheim Schmidt | Device for recording and displaying weather-determining data |
DE3318977A1 (en) * | 1983-05-25 | 1984-11-29 | Siemens AG, 1000 Berlin und 8000 München | Measurement value pick-up with an information carrier containing operating data |
DE3437445A1 (en) * | 1984-10-12 | 1986-05-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method and apparatus for compensating for the temperature dependence of an electrochemical measuring cell |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3840961A1 (en) * | 1988-12-05 | 1990-06-07 | Hellige Gmbh | Ion-sensitive electrode and method for compensating for the temperature dependence in such electrodes |
DE3840962A1 (en) * | 1988-12-05 | 1990-06-07 | Hellige Gmbh | Ion-sensitive electrode and method for compensating for the temperature dependence in such electrodes |
WO1993008550A1 (en) * | 1991-10-24 | 1993-04-29 | Capteur Sensors & Analysers Ltd. | Fire detector and a method of detecting a fire |
EP0677740A2 (en) * | 1994-04-13 | 1995-10-18 | General Signal Corporation | Humidity compensated carbon dioxide gas measurement and control system |
EP0677740A3 (en) * | 1994-04-13 | 1997-01-02 | Gen Signal Corp | Humidity compensated carbon dioxide gas measurement and control system. |
DE102006035173A1 (en) * | 2006-07-06 | 2008-01-17 | Woelke Industrieelektronik Gmbh | Gas i.e. methane, concentration-measuring values correcting method, involves determining respective parameter measured value together with given concentration measured value before usage of sensors, control unit and memory |
FR2931944A3 (en) * | 2008-06-02 | 2009-12-04 | Renault Sas | Air quantity measuring bench for passenger compartment of car, has burnt gas supplying conduit with outlet connected to or positioned near air intake socket, and analysis units analyzing air present in passenger compartment |
EP2887057A1 (en) * | 2013-12-17 | 2015-06-24 | Sensirion AG | Device and method of humidity compensated gas concentration monitoring by thermal conductivity measurements |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |