WO1993012418A3 - System-apparatur und verfahren zur bestimmung von wasserspuren in festen und flüssigen substanzen - Google Patents
System-apparatur und verfahren zur bestimmung von wasserspuren in festen und flüssigen substanzen Download PDFInfo
- Publication number
- WO1993012418A3 WO1993012418A3 PCT/EP1992/002878 EP9202878W WO9312418A3 WO 1993012418 A3 WO1993012418 A3 WO 1993012418A3 EP 9202878 W EP9202878 W EP 9202878W WO 9312418 A3 WO9312418 A3 WO 9312418A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- equipment
- gas
- moisture sensor
- solid
- liquid substances
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title 1
- 239000007787 solid Substances 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 231100000481 chemical toxicant Toxicity 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000691 measurement method Methods 0.000 abstract 1
- 239000002808 molecular sieve Substances 0.000 abstract 1
- 238000000197 pyrolysis Methods 0.000 abstract 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003440 toxic substance Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
-
- 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
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
- G01N27/423—Coulometry
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Mit der vorliegenden Erfindung wird eine System-Apparatur vorgestellt, die nach einem Verfahren der Thermoanalyse arbeitet. Die erfindungsgemäße Apparatur unterscheidet sich von den bekannten naßtechnischen Meßmethoden, insbesondere dadurch, daß keine umständlichen Berechnungen erforderlich sind, und keine toxischen Chemikalien benutzt werden, die anschließend das Problem der Entsorgung aufwerfen. Die Apparatur besteht im wesentlichen aus einem Analysepfad, der sich aus vier Grundkomponenten, dem Molekularsieb (1), der Temperaturzelle (2), der Pyrolyseeinheit (3) und der Wasser-Zelle (4) zusammensetzt, sowie aus einem elektronischen Teil, der die gemessenen elektrischen Signale auswertet und in geeigneter Weise auf einem Monitor darstellt. Mit der vorliegenden Erfindung wird ferner ein Feuchtigkeitssensor vorgestellt, dessen Ansprechwahrscheinlichkeit gegenüber herkömmlichen vergleichbaren Feuchtigkeitssensoren wesentlich verbessert werden köonte. Auch wurde die Meßgenauigkeit gesteigert, was dadurch erzielt wurde, daß die Verweilzeit des zu untersuchenden Gases extrem lang ist, da der Gaswirkungsquerschnitt zweier U-förmig miteinander verbundenen Glaskapillaren (10, 11) sehr klein ausgelegt wurde. Der prinzipielle Aufbau des erfindungsgemäßen Feuchtigkeitssensors ist in mindestens zwei Wicklungen (4), die auf einem Quarzglas-Dorn (3) aufgewickelt sind, zu sehen, und als elektrisch voneinander getrennte Elektroden anzusehen, auf die eine stark hygroskopische Substanz (P2O5) aufgebracht wurde, deren Leitfähigkeit sich mit dem Feuchtegehalt stark ändert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92924722A EP0616691A1 (de) | 1991-12-11 | 1992-12-11 | System-apparatur und verfahren zur bestimmung von wasserspuren in festen und flüssigen substanzen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4140831.4 | 1991-12-11 | ||
| DE19914140831 DE4140831A1 (de) | 1991-12-11 | 1991-12-11 | Feuchtigkeitssensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1993012418A2 WO1993012418A2 (de) | 1993-06-24 |
| WO1993012418A3 true WO1993012418A3 (de) | 1993-07-22 |
Family
ID=6446797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1992/002878 WO1993012418A2 (de) | 1991-12-11 | 1992-12-11 | System-apparatur und verfahren zur bestimmung von wasserspuren in festen und flüssigen substanzen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0616691A1 (de) |
| DE (1) | DE4140831A1 (de) |
| WO (1) | WO1993012418A2 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI98567C (fi) * | 1993-09-29 | 1997-07-10 | Vaisala Oy | Impedanssianturi, etenkin radiosondikäyttöön, sekä menetelmä anturin valmistamiseksi |
| US5589085A (en) * | 1995-08-04 | 1996-12-31 | Meeco, Incorporated | Process of manufacturing a detecting unit for an electrolytic cell with thin film electrodes |
| DE19532987C1 (de) * | 1995-09-07 | 1996-11-28 | Sartorius Gmbh | Vorrichtung zur Bestimmung des Wassergehaltes von Proben |
| EP2994536B1 (de) | 2013-05-08 | 2017-06-14 | Roche Diabetes Care GmbH | Stabilisierung von enzymen durch nikotinsäure |
| WO2015078899A1 (en) | 2013-11-27 | 2015-06-04 | Roche Diagnostics Gmbh | Composition comprising up-converting phosphors for detecting an analyte |
| EP2927319A1 (de) | 2014-03-31 | 2015-10-07 | Roche Diagnostics GmbH | Hochlastenzymimmobilisierung mittels Quervernetzung |
| RU2652656C1 (ru) * | 2017-06-29 | 2018-04-28 | Общество с ограниченной ответственностью "Научно-производственное предприятие ОКБА" (ООО "НПП ОКБА") | Гигрометр |
| CN108287185B (zh) * | 2018-01-09 | 2024-01-12 | 南京信息工程大学 | 一种探空湿度传感器、制备方法、探空湿度测量系统及测量方法 |
| DE102018205347A1 (de) | 2018-04-10 | 2019-10-10 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zum Bestimmen einer Materialfeuchte in einer Materialprobe und Materialfeuchtemesszelle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH476996A (de) * | 1967-03-21 | 1969-08-15 | Vitkovice Zelezarny | Verfahren und Vorrichtung zur automatischen Bestimmung des Wassergehalts von Schüttgütern |
| WO1981002468A1 (en) * | 1980-02-25 | 1981-09-03 | Bonnierfoeretagen Ab | Method and apparatus for determining the moisture content of particulate material that may contain an unknown amount of moisture in a frozen state |
| DE3908934A1 (de) * | 1989-03-18 | 1990-09-20 | Msi Elektronik Gmbh | Vorrichtung zur gasanalyse |
-
1991
- 1991-12-11 DE DE19914140831 patent/DE4140831A1/de not_active Withdrawn
-
1992
- 1992-12-11 WO PCT/EP1992/002878 patent/WO1993012418A2/de not_active Application Discontinuation
- 1992-12-11 EP EP92924722A patent/EP0616691A1/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH476996A (de) * | 1967-03-21 | 1969-08-15 | Vitkovice Zelezarny | Verfahren und Vorrichtung zur automatischen Bestimmung des Wassergehalts von Schüttgütern |
| WO1981002468A1 (en) * | 1980-02-25 | 1981-09-03 | Bonnierfoeretagen Ab | Method and apparatus for determining the moisture content of particulate material that may contain an unknown amount of moisture in a frozen state |
| DE3908934A1 (de) * | 1989-03-18 | 1990-09-20 | Msi Elektronik Gmbh | Vorrichtung zur gasanalyse |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 16, no. 1 (C-0899)7. Januar 1992 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1993012418A2 (de) | 1993-06-24 |
| DE4140831A1 (de) | 1993-07-08 |
| EP0616691A1 (de) | 1994-09-28 |
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