GB1513371A - Sensor or detector element for an electrical hygrometer - Google Patents
Sensor or detector element for an electrical hygrometerInfo
- Publication number
- GB1513371A GB1513371A GB2094474A GB2094474A GB1513371A GB 1513371 A GB1513371 A GB 1513371A GB 2094474 A GB2094474 A GB 2094474A GB 2094474 A GB2094474 A GB 2094474A GB 1513371 A GB1513371 A GB 1513371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- sensor
- film
- detector element
- hygroscopic
- 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.)
- Expired
Links
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
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
- G01N27/225—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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 Electric Means (AREA)
Abstract
1513371 Humidity detectors P ROCKLIFF 7 Aug 1975 [11 May 1974] 20944/74 Heading G1N A sensor or detector element of the capacitance type for use in an electrical hygrometer comprises a substrate or base, e.g. of glass or ceramic material on which is formed three layers, a first and third layer constituting metal electrodes, e.g. of gold and interposed therebetween a two film layer, one film of the layer being non-hygroscopic e.g. of silicon monoxide and protecting the first layer from the second film which is of hygroscopic material e.g. calcium fluoride. The third layer is capable of permitting free passage of water molecules.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2094474A GB1513371A (en) | 1975-08-07 | 1975-08-07 | Sensor or detector element for an electrical hygrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2094474A GB1513371A (en) | 1975-08-07 | 1975-08-07 | Sensor or detector element for an electrical hygrometer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1513371A true GB1513371A (en) | 1978-06-07 |
Family
ID=10154478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2094474A Expired GB1513371A (en) | 1975-08-07 | 1975-08-07 | Sensor or detector element for an electrical hygrometer |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1513371A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054813A2 (en) * | 1980-12-16 | 1982-06-30 | Phoenix International Corp. | A capacitance humidity sensor and a method for preparation thereof |
EP0094266A2 (en) * | 1982-05-11 | 1983-11-16 | Direction De La Meteorologie Du Ministere Des Transports | Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced |
EP0317871A2 (en) * | 1987-11-24 | 1989-05-31 | Siemens Aktiengesellschaft | Probe for detecting gases |
-
1975
- 1975-08-07 GB GB2094474A patent/GB1513371A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054813A2 (en) * | 1980-12-16 | 1982-06-30 | Phoenix International Corp. | A capacitance humidity sensor and a method for preparation thereof |
EP0054813A3 (en) * | 1980-12-16 | 1984-07-25 | Phoenix International Corp. | A capacitance humidity sensor and a method for preparation thereof |
EP0094266A2 (en) * | 1982-05-11 | 1983-11-16 | Direction De La Meteorologie Du Ministere Des Transports | Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced |
FR2526949A1 (en) * | 1982-05-11 | 1983-11-18 | Ministere Transports Direct Me | METHOD FOR MANUFACTURING THIN FILM TYPE TEMPERATURE OR MOISTURE SENSOR AND SENSORS OBTAINED |
EP0094266A3 (en) * | 1982-05-11 | 1988-07-27 | Mini Transport Meteorolog | Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced |
EP0317871A2 (en) * | 1987-11-24 | 1989-05-31 | Siemens Aktiengesellschaft | Probe for detecting gases |
EP0317871A3 (en) * | 1987-11-24 | 1991-03-06 | Siemens Aktiengesellschaft | Probe for detecting gases |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19950806 |