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FI48229C - Capacitive humidity sensor and manufacturing process for the same. - Google Patents

Capacitive humidity sensor and manufacturing process for the same.

Info

Publication number
FI48229C
FI48229C FI283172A FI283172A FI48229C FI 48229 C FI48229 C FI 48229C FI 283172 A FI283172 A FI 283172A FI 283172 A FI283172 A FI 283172A FI 48229 C FI48229 C FI 48229C
Authority
FI
Finland
Prior art keywords
same
manufacturing process
humidity sensor
capacitive humidity
capacitive
Prior art date
Application number
FI283172A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI48229B (en
Inventor
Suntola
Original Assignee
Vaisala Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vaisala Oy filed Critical Vaisala Oy
Priority to FI283172A priority Critical patent/FI48229C/en
Priority to GB4588773A priority patent/GB1418388A/en
Priority to CH1414173A priority patent/CH559365A5/xx
Priority to DE19732350881 priority patent/DE2350881C3/en
Priority to FR7336153A priority patent/FR2203520A5/fr
Priority to DE19732365826 priority patent/DE2365826C3/en
Priority to BR792473A priority patent/BR7307924D0/en
Priority to JP11404973A priority patent/JPS573905B2/ja
Publication of FI48229B publication Critical patent/FI48229B/fi
Application granted granted Critical
Publication of FI48229C publication Critical patent/FI48229C/en
Priority to US05/598,034 priority patent/US4164868A/en

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)
FI283172A 1972-10-12 1972-10-12 Capacitive humidity sensor and manufacturing process for the same. FI48229C (en)

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 FI48229B (en) 1974-04-01
FI48229C true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647833B1 (en) * 1993-09-29 1999-07-14 Vaisala Oy Capacitive humidity sensor, in particular for radiosonde operation, as well as a process for the manufacture of a detector

Families Citing this family (19)

* Cited by examiner, † Cited by third party
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
AU577265B2 (en) * 1982-10-05 1988-09-22 Fibre Containers Ltd. 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 Zürich Capacitive sensor
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
FI96640C (en) * 1993-08-23 1996-07-25 Vaisala Oy Method for measuring relative humidity, especially in radiosondes
FI95626C (en) * 1993-09-29 1996-02-26 Vaisala Oy Procedure and arrangement for measuring humidity, especially in radio probes
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647833B1 (en) * 1993-09-29 1999-07-14 Vaisala Oy Capacitive humidity sensor, in particular for radiosonde operation, as well as a process for the manufacture of a detector

Also Published As

Publication number Publication date
DE2365826C3 (en) 1978-11-30
FI48229B (en) 1974-04-01
FR2203520A5 (en) 1974-05-10
DE2365826B2 (en) 1977-07-21
JPS4974588A (en) 1974-07-18
DE2365826A1 (en) 1976-08-26
GB1418388A (en) 1975-12-17
CH559365A5 (en) 1975-02-28
DE2350881A1 (en) 1974-05-02
BR7307924D0 (en) 1974-07-11
JPS573905B2 (en) 1982-01-23
DE2350881B2 (en) 1976-07-15

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