TR201611339A3 - Gas sensing device with psychrometric enhancement - Google Patents
Gas sensing device with psychrometric enhancement Download PDFInfo
- Publication number
- TR201611339A3 TR201611339A3 TR2016/11339A TR201611339A TR201611339A3 TR 201611339 A3 TR201611339 A3 TR 201611339A3 TR 2016/11339 A TR2016/11339 A TR 2016/11339A TR 201611339 A TR201611339 A TR 201611339A TR 201611339 A3 TR201611339 A3 TR 201611339A3
- Authority
- TR
- Turkey
- Prior art keywords
- control unit
- sensing device
- gas sensing
- further adapted
- electrical resistivity
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract 10
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract 8
- 150000004706 metal oxides Chemical class 0.000 claims abstract 8
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000012855 volatile organic compound Substances 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims 8
- 230000002123 temporal effect Effects 0.000 claims 6
- 239000012080 ambient air Substances 0.000 claims 2
- 238000011156 evaluation Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 claims 1
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
- G01N27/121—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 for determining moisture content, e.g. humidity, of the fluid
-
- 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
-
- 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
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The present invention relates to a gas sensing device (1) comprising: a metal oxide sensor (4) for sensing the volatile organic compounds and for outputting a detection signal indicative of the electrical resistivity R; a heater (5) for heating the metal oxide sensor (4); and a control unit (6) for processing the detection signal.
Claims (13)
1. A gas sensing device (1) for use in a refrigerator (2) comprising: a Chamber (3) for storing and refrigerating food, the gas sensing device (1) comprising: a metal oxide sensor (4) for sensing the volatile organic compounds Which are released by the food in the Chamber (3) and for outputting a detection signal indicative of the electrical resistivity R; a heater (5) for heating the metal oxide sensor (4); and a control unit (6) for processing the detection signal, the gas sensing device (1) being characterized by further comprising: a psychrometer (7) for measuring simultaneously with the metal oxide sensor (4), the humidity H in the Chamber (3), Wherein the control unit (6) is adapted to process the detection signal based on the measured humidity H.
2. The gas sensing device (1) according to claim 1, characterized in that the control unit (6) is adapted to cause the metal oxide sensor (4) and the psychrometer (7) to perform one or more sets of reference measurements for the electrical resistivity R and the humidity H respectively so as to determine a reference electrical resistivity Rref and a reference humidity Href and/or an averaged reference electrical resistivity Rref and an averaged reference humidity 1-1er , and Wherein the control unit (6) is further adapted to process the detection signal based on the reference measurements.
3. The gas sensing device (l) according to claim 2, characterized in that the control unit (6) is further adapted to determine a dimensionless ratio T = and a dimensionless ratio h = H_, and to monitor the temporal change 5 and the temporal change E, wherein the control unit (6) is further adapted to process the detection signal based on the temporal changes in the dimensionless ratios 1" and 11 for the electrical resistivity R and the humidity H respectively.
4. The gas sensing device (1) according to claim 2 or 3, characterized in that the control unit (6) is a further adapted to determine, under load, the dimensionless ratio now = M and the dimensionless ratio hmm = load, and - drload dhload - to monitor the temporal change T and the temporal change T” Wherein the control unit (6) is further adapted to process the detection signal based on the temporal changes in the dimensionless ratios rwad and hload for the electrical resistivity Rload and the humidity Hamd respectively when the Chamber (3) contains food.
5. The gas sensing device (l) according to claim 3, characterized in that the control unit (6) is further adapted to evaluate the psychometrically corrected dimensionless ratio ?my = I (a E - b 3) dt over a predetermmed cycle, Wherein a and b are predetermined coefficients, and Wherein the control unit (6) is further adapted to process the detection signal based on the evaluation.
6. The gas sensing device (1) according to claim 4, characterized in that the control unit (6) is further adapted to evaluate the psychometrically corrected dimensionless ratio (110.1th = f ((1 $ - b %) dt over a predetermined cycle, Wherein (1 and b are predetermined coefficients, Wherein the control unit (6) is further adapted to process the detection signal based on the evaluation.
7. The gas sensing device ( 1) according to claim 5, characterized in that the control unit (6) is further adapted to determine the psychometrically corrected electrical resistivity Rar), = Tdry - Rref .
8. The gas sensing device ( l) according to claim 6, characterized in that the control unit (6) is further adapted to determine the psychometrically corrected electrical resistivity (Rwadhry = &1%th - Rref .
9. The gas sensing device (1) according to claim 7 and 8, characterized in that the control unit (6) is further adapted to determine the control parameter 2 W, wherein the control unit (6) is further adapted to output a control signal based on the parameter p.
10. The gas sensing device (l) according to any one of claims 1 to 9, characterized in that the control unit (6) is further adapted to determine the ambient air quality inside the Chamber (3) based on the processing result.
11. A refrigerator (2) comprising: a Chamber (3) for storing and refrigerating food, characterized by further comprising: the gas sensing device (l) as defined in any one of claims 1 to 10.
12. The refrigerator ( l) according to claim l 1, characterized by further comprising: a user interface Which is adapted to audibly and/or visually inform the user on the ambient air quality inside the Chamber (3).
13. A method of sensing the volatile organic compounds released by the food in a Chamber (3), the method comprising: a step of heating a metal oxide sensor (4) in the Chamber; and a step of measurin g the electrical resistivity R of the metal oxide sensor (4), characterized by further comprising: a step of measuring, simultaneously With the electrical resistivity R, the humidity H in the Chamber (3); and a step of processing the electrical resistivity R based on the humidity H .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/11339A TR201611339A3 (en) | 2016-08-12 | 2016-08-12 | Gas sensing device with psychrometric enhancement |
| PCT/EP2017/069566 WO2018029061A1 (en) | 2016-08-12 | 2017-08-02 | Gas sensing device with psychrometric enhancement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/11339A TR201611339A3 (en) | 2016-08-12 | 2016-08-12 | Gas sensing device with psychrometric enhancement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TR201611339A3 true TR201611339A3 (en) | 2018-03-21 |
Family
ID=59593053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2016/11339A TR201611339A3 (en) | 2016-08-12 | 2016-08-12 | Gas sensing device with psychrometric enhancement |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201611339A3 (en) |
| WO (1) | WO2018029061A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19806041A1 (en) * | 1998-02-13 | 1999-08-19 | Bosch Siemens Hausgeraete | Food storage containers |
| EP1943472A1 (en) * | 2005-10-31 | 2008-07-16 | Arcelik Anonim Sirketi | A refrigerator |
| DE102006023182A1 (en) * | 2006-05-17 | 2007-11-22 | Siemens Ag | Sensor arrangement for detecting characteristic values of the environment and method for generating corresponding output signals |
| CN101887042B (en) * | 2009-07-21 | 2012-11-07 | 上海工程技术大学 | Multifunctional environment simulation test chamber for on-line detecting textile material total organic volatile |
| CN203758163U (en) | 2014-02-14 | 2014-08-06 | 安徽康佳同创电器有限公司 | Refrigerator |
| US20160187279A1 (en) * | 2014-12-24 | 2016-06-30 | Intel Corporation | Metal oxide gas sensor array devices, systems, and associated methods |
-
2016
- 2016-08-12 TR TR2016/11339A patent/TR201611339A3/en unknown
-
2017
- 2017-08-02 WO PCT/EP2017/069566 patent/WO2018029061A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018029061A1 (en) | 2018-02-15 |
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