FI48229B - - Google Patents
Info
- Publication number
- FI48229B FI48229B FI283172A FI283172A FI48229B FI 48229 B FI48229 B FI 48229B FI 283172 A FI283172 A FI 283172A FI 283172 A FI283172 A FI 283172A FI 48229 B FI48229 B FI 48229B
- Authority
- FI
- Finland
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
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI283172A FI48229C (en) | 1972-10-12 | 1972-10-12 | Capacitive humidity sensor and manufacturing process for the same. |
GB4588773A GB1418388A (en) | 1972-10-12 | 1973-10-02 | Transducers for measuring relative humidity |
CH1414173A CH559365A5 (en) | 1972-10-12 | 1973-10-03 | |
FR7336153A FR2203520A5 (en) | 1972-10-12 | 1973-10-10 | |
DE19732350881 DE2350881C3 (en) | 1972-10-12 | 1973-10-10 | Method for manufacturing a capacitive humidity sensor |
DE19732365826 DE2365826C3 (en) | 1972-10-12 | 1973-10-10 | Capacitive humidity sensor |
BR792473A BR7307924D0 (en) | 1972-10-12 | 1973-10-11 | CAPACITATIVE HUMIDITY TRANSDUCER AND PROCESS FOR ITS MANUFACTURING |
JP11404973A JPS573905B2 (en) | 1972-10-12 | 1973-10-12 | |
US05/598,034 US4164868A (en) | 1972-10-12 | 1975-07-22 | Capacitive humidity transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI283172A FI48229C (en) | 1972-10-12 | 1972-10-12 | Capacitive humidity sensor and manufacturing process for the same. |
Publications (2)
Publication Number | Publication Date |
---|---|
FI48229B true FI48229B (en) | 1974-04-01 |
FI48229C FI48229C (en) | 1974-07-10 |
Family
ID=8507652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI283172A FI48229C (en) | 1972-10-12 | 1972-10-12 | Capacitive humidity sensor and manufacturing process for the same. |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS573905B2 (en) |
BR (1) | BR7307924D0 (en) |
CH (1) | CH559365A5 (en) |
DE (1) | DE2365826C3 (en) |
FI (1) | FI48229C (en) |
FR (1) | FR2203520A5 (en) |
GB (1) | GB1418388A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5511418A (en) * | 1993-08-23 | 1996-04-30 | Vaisala Oy | Method for measurement of relative humidity, in particular in radiosondes, and humidity detectors that make use of the method |
US5511417A (en) * | 1993-09-29 | 1996-04-30 | Vaisala Oy | Method and arrangement in measurement of humidity, in particular in radiosondes |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI58402C (en) * | 1977-12-02 | 1981-01-12 | Vaisala Oy | FARING EQUIPMENT WITHOUT ELECTRICAL EQUIPMENT HOS EN ELECTRICAL FUNCTIONAL EQUIPMENT |
DE2848034A1 (en) * | 1978-11-06 | 1980-05-14 | Siemens Ag | CAPACITIVE HUMIDITY SENSOR |
CA1183586A (en) * | 1980-09-10 | 1985-03-05 | Vertec Industries Ltd. | Apparatus for sensing and controlling moisture content of granular materials |
FR2498329A1 (en) * | 1981-01-19 | 1982-07-23 | Commissariat Energie Atomique | THIN DIELECTRIC CAPACITIVE HYGROMETER AND METHOD OF MANUFACTURING THE SAME |
FR2526949B1 (en) * | 1982-05-11 | 1989-05-12 | Ministere Transports Direct Me | METHOD FOR MANUFACTURING A TEMPERATURE OR HUMIDITY SENSOR OF THE THIN FILM TYPE AND SENSORS OBTAINED |
JPS58195864U (en) * | 1982-06-23 | 1983-12-26 | 宝工業株式会社 | Capacitive humidity sensor |
WO1984001325A1 (en) * | 1982-10-05 | 1984-04-12 | Fibre Containers | Manufacture of corrugated fibreboard |
FI65674C (en) * | 1982-12-21 | 1984-06-11 | Vaisala Oy | CAPACITIVE FUEL FARTIGHETSGIVARE OCH FOERFARANDE FOER FRAMSTAELLNINGDAERAV |
GB2136130B (en) * | 1983-02-28 | 1987-02-11 | Theodore Henry Krueger | Chemical assay systems and methods |
DE3339276A1 (en) * | 1983-10-28 | 1985-05-09 | Endress U. Hauser Gmbh U. Co, 7867 Maulburg | CAPACITIVE HUMIDITY SENSOR AND METHOD FOR THE PRODUCTION THEREOF |
JPS61277045A (en) * | 1985-05-31 | 1986-12-08 | Chino Corp | Humidity element |
CA1273822A (en) * | 1985-06-03 | 1990-09-11 | Katsutoshi Rokuta | Water content detecting device for diaper |
DE8707954U1 (en) * | 1987-06-04 | 1988-10-06 | Kohler, Hans-Michael, 8022 Zuerich, Ch | |
EP0426989B1 (en) * | 1989-11-04 | 1994-02-02 | Dornier Gmbh | Selective gas sensor |
FR2685963A1 (en) * | 1991-12-20 | 1993-07-09 | Coed Sa | Device for measuring the equilibrium relative humidity of a product, especially a food product |
FI98567C (en) * | 1993-09-29 | 1997-07-10 | Vaisala Oy | Impedance sensor, especially for radio probe use, as well as a method for producing a sensor |
EP0745842A1 (en) | 1995-06-02 | 1996-12-04 | Staefa Control System Scs Ag | Humidity sensor |
CZ201185A3 (en) * | 2011-02-16 | 2011-10-05 | Výzkumný ústav Silva Taroucy pro krajinu a okrasné zahradnictví, v. v. i. | Plant tissue sampler |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3077774A (en) * | 1957-02-18 | 1963-02-19 | Energy Kontrols Inc | Humidity indicating device |
US3247478A (en) * | 1961-03-20 | 1966-04-19 | Aerological Res Inc | Electrical hygrometer |
US3168829A (en) * | 1961-10-05 | 1965-02-09 | Honeywell Inc | Control apparatus |
US3255324A (en) * | 1962-05-28 | 1966-06-07 | Energy Conversion Devices Inc | Moisture responsive resistance device |
US3350941A (en) * | 1965-05-20 | 1967-11-07 | Johnson Service Co | Humidity sensing element |
US3453143A (en) * | 1965-10-13 | 1969-07-01 | Singer General Precision | Method of making a moisture sensitive capacitor |
DE1598446A1 (en) * | 1966-05-03 | 1969-06-26 | Hoechst Ag | Humidity sensor |
US3582728A (en) * | 1969-03-06 | 1971-06-01 | Johnson Service Co | Capacitance humidity sensing element |
US3671913A (en) * | 1969-03-19 | 1972-06-20 | Saginomiya Seisakusho Inc | Aging-proof humidity sensing element and method for the production thereof |
US3636444A (en) * | 1970-01-30 | 1972-01-18 | Johnson Service Co | Apparatus for measuring small changes in condition-sensitive capacitance transducers |
-
1972
- 1972-10-12 FI FI283172A patent/FI48229C/en active
-
1973
- 1973-10-02 GB GB4588773A patent/GB1418388A/en not_active Expired
- 1973-10-03 CH CH1414173A patent/CH559365A5/xx not_active IP Right Cessation
- 1973-10-10 FR FR7336153A patent/FR2203520A5/fr not_active Expired
- 1973-10-10 DE DE19732365826 patent/DE2365826C3/en not_active Expired
- 1973-10-11 BR BR792473A patent/BR7307924D0/en unknown
- 1973-10-12 JP JP11404973A patent/JPS573905B2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5511418A (en) * | 1993-08-23 | 1996-04-30 | Vaisala Oy | Method for measurement of relative humidity, in particular in radiosondes, and humidity detectors that make use of the method |
US5511417A (en) * | 1993-09-29 | 1996-04-30 | Vaisala Oy | Method and arrangement in measurement of humidity, in particular in radiosondes |
Also Published As
Publication number | Publication date |
---|---|
CH559365A5 (en) | 1975-02-28 |
JPS573905B2 (en) | 1982-01-23 |
DE2350881B2 (en) | 1976-07-15 |
DE2365826A1 (en) | 1976-08-26 |
FI48229C (en) | 1974-07-10 |
DE2365826C3 (en) | 1978-11-30 |
FR2203520A5 (en) | 1974-05-10 |
DE2350881A1 (en) | 1974-05-02 |
GB1418388A (en) | 1975-12-17 |
DE2365826B2 (en) | 1977-07-21 |
JPS4974588A (en) | 1974-07-18 |
BR7307924D0 (en) | 1974-07-11 |