AR241330A1 - Un dispositivo de medicion de la humedad - Google Patents

Un dispositivo de medicion de la humedad

Info

Publication number
AR241330A1
AR241330A1 AR83294054A AR29405483A AR241330A1 AR 241330 A1 AR241330 A1 AR 241330A1 AR 83294054 A AR83294054 A AR 83294054A AR 29405483 A AR29405483 A AR 29405483A AR 241330 A1 AR241330 A1 AR 241330A1
Authority
AR
Argentina
Prior art keywords
humidity
methods
measuring devices
moisture measuring
impedance
Prior art date
Application number
AR83294054A
Other languages
English (en)
Original Assignee
Babcock & Wilcox Co
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 Babcock & Wilcox Co filed Critical Babcock & Wilcox Co
Application granted granted Critical
Publication of AR241330A1 publication Critical patent/AR241330A1/es

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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02845—Humidity, wetness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02863—Electric or magnetic parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

UN DISPOSITIVO DE MEDICION DE HUMEDAD, QUE COMPRENDE:- UN CRISTAL PIEZOELECTRICO CON ACOPLAMIENTO ACUSTICO SOBRE LA SUPERFICIE DEL MIEMBRO DE PARED, QUE ENFRENTA AL LADO MENCIONADO;-UN MEDIO DE IMPEDANCIA SENSIBLE A LA HUMEDAD Y -UNA RED CONECTADA A TRAVES DEL MEDIO DE IMPEDANCIA SENSIBLE A LA HUMEDAD Y AL CRISTAL PIEZOELECTRICO, CAPAZ DE PROPORCIONAR UNA RESPUESTA INDICATIVA DE LA IMPEDANCIA DEL MEDIO SENSIBLE A LA HUMEDAD, CUANDO SE EXCITA AL CRISTAL.
AR83294054A 1982-08-31 1983-08-30 Un dispositivo de medicion de la humedad AR241330A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/413,286 US4491784A (en) 1982-08-31 1982-08-31 Piezoelectric moisture measuring device

Publications (1)

Publication Number Publication Date
AR241330A1 true AR241330A1 (es) 1992-05-29

Family

ID=23636649

Family Applications (1)

Application Number Title Priority Date Filing Date
AR83294054A AR241330A1 (es) 1982-08-31 1983-08-30 Un dispositivo de medicion de la humedad

Country Status (12)

Country Link
US (1) US4491784A (es)
EP (1) EP0106470B1 (es)
JP (1) JPS5965247A (es)
KR (1) KR900005478B1 (es)
AR (1) AR241330A1 (es)
AT (1) ATE34846T1 (es)
BR (1) BR8304589A (es)
CA (1) CA1198908A (es)
DE (1) DE3376878D1 (es)
IN (1) IN162581B (es)
MX (1) MX154786A (es)
PH (1) PH20323A (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8752958B2 (en) 1999-03-01 2014-06-17 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask
US9545303B2 (en) 2011-12-02 2017-01-17 Acufocus, Inc. Ocular mask having selective spectral transmission

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63226506A (ja) * 1987-03-16 1988-09-21 Matsushita Electric Ind Co Ltd 触媒燃焼装置
KR100815294B1 (ko) 2006-06-28 2008-03-19 한국폴리텍Iv대학 산학협력단 회복전압법과 유전특성을 이용한 수분량 검출 장치 및 방법
US20110133755A1 (en) * 2009-12-08 2011-06-09 Delphi Technologies, Inc. System and Method of Occupant Detection with a Resonant Frequency
GB2496136A (en) * 2011-11-01 2013-05-08 Isis Innovation Passive capacitive moisture detector
US9032792B2 (en) * 2012-01-19 2015-05-19 Nalco Company Fouling reduction device and method
CN105452853B (zh) * 2013-08-13 2018-01-30 株式会社村田制作所 温湿度传感器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536111A (en) * 1945-07-04 1951-01-02 Karl S Van Dyke Dew point hygrometer
US3256482A (en) * 1962-02-23 1966-06-14 Nat Tank Co Basic sediment and water monitor utilizing a plurality of selectable compensating capacitors in a resonant detecting circuit
GB1340703A (en) * 1970-04-22 1973-12-12 Atomic Energy Authority Uk Transducers for measuring apparatus
JPS5255580A (en) * 1975-10-30 1977-05-07 Matsushita Electric Ind Co Ltd Humidity sensor
US4312228A (en) * 1979-07-30 1982-01-26 Henry Wohltjen Methods of detection with surface acoustic wave and apparati therefor
JPS56119474A (en) * 1980-02-25 1981-09-19 Nippon Denso Co Device for responding to refrigerang amount for refrigerant circulating apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8752958B2 (en) 1999-03-01 2014-06-17 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US9545303B2 (en) 2011-12-02 2017-01-17 Acufocus, Inc. Ocular mask having selective spectral transmission
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9603704B2 (en) 2013-03-13 2017-03-28 Acufocus, Inc. In situ adjustable optical mask
US10350058B2 (en) 2013-03-13 2019-07-16 Acufocus, Inc. In situ adjustable optical mask
US10939995B2 (en) 2013-03-13 2021-03-09 Acufocus, Inc. In situ adjustable optical mask
US11771552B2 (en) 2013-03-13 2023-10-03 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask

Also Published As

Publication number Publication date
BR8304589A (pt) 1984-04-03
DE3376878D1 (en) 1988-07-07
EP0106470A2 (en) 1984-04-25
IN162581B (es) 1988-06-11
PH20323A (en) 1986-11-25
EP0106470B1 (en) 1988-06-01
US4491784A (en) 1985-01-01
ATE34846T1 (de) 1988-06-15
CA1198908A (en) 1986-01-07
JPH0257865B2 (es) 1990-12-06
KR900005478B1 (ko) 1990-07-30
JPS5965247A (ja) 1984-04-13
EP0106470A3 (en) 1985-05-02
KR840006070A (ko) 1984-11-21
MX154786A (es) 1987-12-11

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