FR853257A - Electric hygrometer - Google Patents

Electric hygrometer

Info

Publication number
FR853257A
FR853257A FR853257DA FR853257A FR 853257 A FR853257 A FR 853257A FR 853257D A FR853257D A FR 853257DA FR 853257 A FR853257 A FR 853257A
Authority
FR
France
Prior art keywords
electric hygrometer
hygrometer
electric
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR853257A publication Critical patent/FR853257A/en
Expired legal-status Critical Current

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)
  • 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)
  • Non-Adjustable Resistors (AREA)
FR853257D 1938-04-21 1939-04-20 Electric hygrometer Expired FR853257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US203297A US2237006A (en) 1938-04-21 1938-04-21 Electric hygrometer

Publications (1)

Publication Number Publication Date
FR853257A true FR853257A (en) 1940-03-14

Family

ID=22753359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853257D Expired FR853257A (en) 1938-04-21 1939-04-20 Electric hygrometer

Country Status (4)

Country Link
US (1) US2237006A (en)
DE (1) DE917821C (en)
FR (1) FR853257A (en)
GB (1) GB527686A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466903A (en) * 1944-04-28 1949-04-12 Gen Engineering Company Canada Electrical hygrometer
US2458348A (en) * 1944-05-06 1949-01-04 Eastman Kodak Co Electric resistance film hygrometer
US2454584A (en) * 1944-10-02 1948-11-23 Square D Co Hygrometer
US2710324A (en) * 1953-02-04 1955-06-07 Harmantas Christos Sensing element for the electric hygrometer
US2884593A (en) * 1953-05-06 1959-04-28 Miyata Akira Device for determining moisture content of various materials and substances
DE1037175B (en) * 1954-07-24 1958-08-21 British Scient Instr Res Ass Moisture measuring device with a ceramic semiconductor and process for its manufacture
US3083565A (en) * 1958-06-20 1963-04-02 Bailey Meter Co Dewpoint hygrometer
US2998502A (en) * 1958-11-05 1961-08-29 George V Woodling Moisture control for electric blankets
US3313971A (en) * 1960-02-29 1967-04-11 Westinghouse Electric Corp Photosensitive element stable in air
US3229235A (en) * 1960-05-02 1966-01-11 Hughes Aircraft Co Thermal radiant energy detecting device
DE1229321B (en) * 1961-10-30 1966-11-24 John Leonard Shaw Measuring element for an electrical hygrometer
US3243891A (en) * 1962-04-27 1966-04-05 Maytag Co Control devices for driers
US3440396A (en) * 1965-11-22 1969-04-22 Ugc Ind Inc Moisture and snow detector
US3440372A (en) * 1966-03-31 1969-04-22 Texas Instruments Inc Aluminum oxide humidity sensor
US3343075A (en) * 1966-08-15 1967-09-19 Energy Conversion Devices Inc Moisture responsive control system
US3523244A (en) * 1967-11-01 1970-08-04 Panametrics Device for measurement of absolute humidity
US3539917A (en) * 1968-04-24 1970-11-10 Panametrics Method of measuring the water content of liquid hydrocarbons
US3550057A (en) * 1968-11-29 1970-12-22 Honeywell Inc Sensing element
US3731249A (en) * 1969-09-26 1973-05-01 Univ Yeshiva Polyconducting device and applications therefor
US3861031A (en) * 1974-05-01 1975-01-21 Rikagaku Kenkyusho Method of making a moisture-sensitive element
GB1573102A (en) * 1976-01-13 1980-08-13 Lucas Industries Ltd Gas flow transducers and i.c. engine control systems incorporating such transducers
GB1586117A (en) * 1977-06-22 1981-03-18 Rosemount Eng Co Ltd Solid state sensor element
EP0013022B1 (en) * 1978-12-26 1984-03-28 Matsushita Electric Industrial Co., Ltd. Humidity detecting apparatus using a humidity detecting resistor ceramic element
US4793182A (en) * 1987-06-02 1988-12-27 Djorup Robert Sonny Constant temperature hygrometer
US4793181A (en) * 1987-06-02 1988-12-27 Djorup Robert Sonny Constant temperature sorption hygrometer
DE102004041620A1 (en) * 2004-08-27 2006-03-02 Testo Ag Gas sensor and manufacturing method for a gas sensor
US20110284468A1 (en) * 2009-02-02 2011-11-24 Zeev Birger Uses of hydrophobic aggregates and methods for performing those uses
CN114280108A (en) * 2021-12-03 2022-04-05 电子科技大学长三角研究院(湖州) Aluminum-based porous alumina film humidity-sensitive sensor and preparation method thereof

Also Published As

Publication number Publication date
DE917821C (en) 1954-09-13
GB527686A (en) 1940-10-14
US2237006A (en) 1941-04-01

Similar Documents

Publication Publication Date Title
FR853257A (en) Electric hygrometer
CH214484A (en) Electric switch.
CH214010A (en) Electric switch.
FR861703A (en) Electric conductors
FR851088A (en) Electric capacitors
FR839865A (en) Electric lock
FR847985A (en) Electric toaster
FR873138A (en) Electric switch
FR849420A (en) Electric switch
FR868530A (en) Electric detonator
FR841216A (en) Electric heater
FR858021A (en) Electric cart
FR848186A (en) Electric telemanometer
FR846492A (en) Electric lock
FR853968A (en) Electric accumulator
FR852184A (en) Electrical connection
FR850257A (en) Insulating substance
FR820056A (en) Electric vibrator
FR841044A (en) Electric amplifier
FR848308A (en) Electric Watcher
FR836304A (en) Electric megaphone
FR838831A (en) Electric lighter
FR842475A (en) Electric lighter
FR853381A (en) Electric regulator
FR843153A (en) Electric regulator