FI882577A - Hygrometer - Google Patents
Hygrometer Download PDFInfo
- Publication number
- FI882577A FI882577A FI882577A FI882577A FI882577A FI 882577 A FI882577 A FI 882577A FI 882577 A FI882577 A FI 882577A FI 882577 A FI882577 A FI 882577A FI 882577 A FI882577 A FI 882577A
- Authority
- FI
- Finland
- Prior art keywords
- hygrometer
- Prior art date
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
- G01N27/04—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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/057,050 US4793181A (en) | 1987-06-02 | 1987-06-02 | Constant temperature sorption hygrometer |
US5705087 | 1987-06-02 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI882577A0 FI882577A0 (sv) | 1988-06-01 |
FI882577A true FI882577A (sv) | 1988-12-03 |
FI94556B FI94556B (sv) | 1995-06-15 |
FI94556C FI94556C (sv) | 1995-09-25 |
Family
ID=22008211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI882577A FI94556C (sv) | 1987-06-02 | 1988-06-01 | Hygrometer |
Country Status (6)
Country | Link |
---|---|
US (1) | US4793181A (sv) |
JP (1) | JP2620804B2 (sv) |
CA (1) | CA1314412C (sv) |
CH (1) | CH675634A5 (sv) |
DE (1) | DE3818736A1 (sv) |
FI (1) | FI94556C (sv) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993007758A1 (en) * | 1991-10-18 | 1993-04-29 | British Technology Group Limited | Test apparatus |
US5365784A (en) * | 1992-04-30 | 1994-11-22 | The United States Of America As Represented By The Secretary Of The Air Force | Humidity sensing apparatus and method |
FI98567C (sv) * | 1993-09-29 | 1997-07-10 | Vaisala Oy | Impedansgivare, speciellt för radiosondbruk, samt förfarande för framställning av en givare |
NZ276188A (en) * | 1993-10-19 | 1996-11-26 | Jury Gennadievich Usanov | Moisture gauge; details of structure and method of producing it |
FI99164C (sv) * | 1994-04-15 | 1997-10-10 | Vaisala Oy | Förfarande för mätning av daggpunkt eller gashalt samt anordning för anticipering av frysning |
US5533393A (en) * | 1995-01-13 | 1996-07-09 | Honeywell Inc. | Determination of dew point or absolute humidity |
US5831146A (en) * | 1996-05-09 | 1998-11-03 | Cts Corporation | Gas sensor with multiple exposed active elements |
US6012675A (en) * | 1997-12-05 | 2000-01-11 | Cocatre-Zilgien; Jan Henri | Aircraft system monitoring air humidity to locate updrafts |
FR2784800B1 (fr) * | 1998-10-20 | 2000-12-01 | Commissariat Energie Atomique | Procede de realisation de composants passifs et actifs sur un meme substrat isolant |
JP2007535662A (ja) * | 2004-04-02 | 2007-12-06 | カミンズ,チモシー | 統合電子センサ |
WO2007036922A1 (en) * | 2005-09-30 | 2007-04-05 | Timothy Cummins | An integrated electronic sensor |
US8357958B2 (en) * | 2004-04-02 | 2013-01-22 | Silicon Laboratories Inc. | Integrated CMOS porous sensor |
DE102004017586A1 (de) * | 2004-04-07 | 2005-10-27 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Gassonde mit beschichteter Schutzeinrichtung |
US20080096061A1 (en) * | 2006-06-12 | 2008-04-24 | Revolt Technology Ltd | Metal-Air Battery or Fuel Cell |
US7377171B2 (en) * | 2006-08-15 | 2008-05-27 | General Electric Company | Feedback circuit for radiation resistant transducer |
US8691609B1 (en) | 2011-09-30 | 2014-04-08 | Silicon Laboratories Inc. | Gas sensor materials and methods for preparation thereof |
US8669131B1 (en) | 2011-09-30 | 2014-03-11 | Silicon Laboratories Inc. | Methods and materials for forming gas sensor structures |
US9164052B1 (en) | 2011-09-30 | 2015-10-20 | Silicon Laboratories Inc. | Integrated gas sensor |
US8852513B1 (en) | 2011-09-30 | 2014-10-07 | Silicon Laboratories Inc. | Systems and methods for packaging integrated circuit gas sensor systems |
JP5884238B2 (ja) * | 2012-03-05 | 2016-03-15 | ナガノサイエンス株式会社 | 湿度検出装置及びそれを備えた環境試験装置 |
US10299448B2 (en) * | 2013-07-10 | 2019-05-28 | James Canyon | Method and apparatus to improve crop yields and increase irrigation efficiency in agriculture |
US9500615B2 (en) * | 2013-08-09 | 2016-11-22 | The Trustees Of Princeton University | Fast response humidity sensor |
CN108601558B (zh) * | 2015-12-28 | 2020-12-18 | 普林斯顿大学 | 弹性丝速度传感器 |
EP3315956A1 (en) * | 2016-10-31 | 2018-05-02 | Sensirion AG | Multi-parametric sensor with bridge structure |
DE112018004097T5 (de) | 2017-08-09 | 2020-05-20 | Semitec Corporation | Gassensor, Gaserkennungsvorrichtung, Gaserkennungsverfahren, und Vorrichtung bereitgestellt mit Gassensor oder Gaserkennungsvorrichtung |
CN112697343B (zh) * | 2021-03-23 | 2021-07-16 | 上海艾为微电子技术有限公司 | 电阻桥式压力传感器的检测电路、方法、电子设备及芯片 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1855774A (en) * | 1924-03-04 | 1932-04-26 | Brown Instr Co | Humidity measuring |
US2237006A (en) * | 1938-04-21 | 1941-04-01 | Gen Electric | Electric hygrometer |
US2707880A (en) * | 1950-02-18 | 1955-05-10 | Honeywell Regulator Co | Relative humidity measuring apparatus |
US3075385A (en) * | 1960-12-15 | 1963-01-29 | Clifford M Stover | Hygrometer |
NL278407A (sv) * | 1961-05-15 | |||
US3253219A (en) * | 1961-06-01 | 1966-05-24 | Union Oil Co | Method using change of piezoelectric crystal frequency to determine corrosion rate and apparatus therefor |
US3350941A (en) * | 1965-05-20 | 1967-11-07 | Johnson Service Co | Humidity sensing element |
US3523244A (en) * | 1967-11-01 | 1970-08-04 | Panametrics | Device for measurement of absolute humidity |
US3582728A (en) * | 1969-03-06 | 1971-06-01 | Johnson Service Co | Capacitance humidity sensing element |
US3680364A (en) * | 1970-06-22 | 1972-08-01 | Roger E Carrier | Monitoring humidity |
US3802268A (en) * | 1971-05-06 | 1974-04-09 | Johnson Service Co | Capacitance humidity sensing element |
US4164868A (en) * | 1972-10-12 | 1979-08-21 | Vaisala Oy | Capacitive humidity transducer |
US4143177A (en) * | 1977-01-31 | 1979-03-06 | Panametrics, Inc. | Absolute humidity sensors and methods of manufacturing humidity sensors |
FI58403C (fi) * | 1979-03-29 | 1981-01-12 | Vaisala Oy | Regleranordning i fuktighetsgivare |
US4419888A (en) * | 1979-06-14 | 1983-12-13 | Kabushikikaisha Shibaura Denshi Seisakusho | Humidity measuring method |
JPS5730937A (en) * | 1980-08-04 | 1982-02-19 | Hajime Kano | Humidity measuring method |
US4379406A (en) * | 1980-09-25 | 1983-04-12 | Bennewitz Paul F | Relative humidity detector systems and method of increasing the calibration period of relative humidity detector systems |
JPS5770441A (en) * | 1980-10-22 | 1982-04-30 | Hitachi Ltd | Moisture sensitive element |
DE3131506A1 (de) * | 1981-08-08 | 1983-03-17 | Leybold-Heraeus GmbH, 5000 Köln | Verfahren zum betrieb eines geregelten pirani-vakuummeters und dafuer geeignetes pirani-vakuummeter |
US4562725A (en) * | 1982-07-31 | 1986-01-07 | Shimadzu Corporation | Moisture sensor and a process for the production thereof |
JPH053973Y2 (sv) * | 1985-05-10 | 1993-01-29 |
-
1987
- 1987-06-02 US US07/057,050 patent/US4793181A/en not_active Expired - Lifetime
-
1988
- 1988-05-31 CH CH2066/88A patent/CH675634A5/fr not_active IP Right Cessation
- 1988-06-01 CA CA000568306A patent/CA1314412C/en not_active Expired - Fee Related
- 1988-06-01 FI FI882577A patent/FI94556C/sv not_active IP Right Cessation
- 1988-06-01 DE DE3818736A patent/DE3818736A1/de active Granted
- 1988-06-02 JP JP63136619A patent/JP2620804B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3818736A1 (de) | 1988-12-22 |
CA1314412C (en) | 1993-03-16 |
CH675634A5 (sv) | 1990-10-15 |
US4793181A (en) | 1988-12-27 |
FI94556B (sv) | 1995-06-15 |
FI882577A0 (sv) | 1988-06-01 |
DE3818736C2 (sv) | 1991-08-08 |
FI94556C (sv) | 1995-09-25 |
JP2620804B2 (ja) | 1997-06-18 |
JPS6465443A (en) | 1989-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: DJORUP, ROBERT S. |