IT1251763B - Dispositivo per misurare con precisione la presenza di umidita' - Google Patents

Dispositivo per misurare con precisione la presenza di umidita'

Info

Publication number
IT1251763B
IT1251763B ITMI912941A ITMI912941A IT1251763B IT 1251763 B IT1251763 B IT 1251763B IT MI912941 A ITMI912941 A IT MI912941A IT MI912941 A ITMI912941 A IT MI912941A IT 1251763 B IT1251763 B IT 1251763B
Authority
IT
Italy
Prior art keywords
heat sink
humidity
radiator
isothermal heat
cell
Prior art date
Application number
ITMI912941A
Other languages
English (en)
Inventor
Marco Succi
Carolina Solcia
Fabrizio Doni
Antonio Coppola
Original Assignee
Getters Spa
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 Getters Spa filed Critical Getters Spa
Priority to ITMI912941A priority Critical patent/IT1251763B/it
Publication of ITMI912941A0 publication Critical patent/ITMI912941A0/it
Priority to US07/967,030 priority patent/US5343735A/en
Priority to AT92830607T priority patent/ATE148559T1/de
Priority to DE69217163T priority patent/DE69217163T2/de
Priority to EP92830607A priority patent/EP0541495B1/en
Priority to JP4317954A priority patent/JPH05240824A/ja
Publication of ITMI912941A1 publication Critical patent/ITMI912941A1/it
Application granted granted Critical
Publication of IT1251763B publication Critical patent/IT1251763B/it

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
    • 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
    • G01N27/423—Coulometry
    • 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
    • G01N33/0011—Sample conditioning
    • G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Un dispositivo per misurare con precisione il contenuto di acqua in un gas umido contenente fino a meno di 50 parti per milione di acqua comprende un pozzo di calore isotermico, un radiatore ed un dispositivo di riscaldamento-raffreddamento ad effetto Peltier tra il pozzo di calore isotermico ed il radiatore. Il dispositivo di riscaldamento-raffreddamento trasferisce calore dal pozzo di calore isotermico al radiatore e viceversa. Una cella ad acido fosforico per la misurazione dell'umidità è in contatto termico con il pozzo di calore isotermico. Al passare del gas umido attraverso la cella, la quantità di umidità viene misurata come variazione della corrente attraverso la cella stessa.
ITMI912941A 1991-11-06 1991-11-06 Dispositivo per misurare con precisione la presenza di umidita' IT1251763B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ITMI912941A IT1251763B (it) 1991-11-06 1991-11-06 Dispositivo per misurare con precisione la presenza di umidita'
US07/967,030 US5343735A (en) 1991-11-06 1992-10-27 Apparatus for accurately measuring the water content of gases
AT92830607T ATE148559T1 (de) 1991-11-06 1992-11-02 Vorrichtung zur genauen feststellung des wassergehaltes von einem gas
DE69217163T DE69217163T2 (de) 1991-11-06 1992-11-02 Vorrichtung zur genauen Feststellung des Wassergehaltes von einem Gas
EP92830607A EP0541495B1 (en) 1991-11-06 1992-11-02 Apparatus for accurately measuring the water content of gas
JP4317954A JPH05240824A (ja) 1991-11-06 1992-11-04 気体の含水量を精確に測定するための装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI912941A IT1251763B (it) 1991-11-06 1991-11-06 Dispositivo per misurare con precisione la presenza di umidita'

Publications (3)

Publication Number Publication Date
ITMI912941A0 ITMI912941A0 (it) 1991-11-06
ITMI912941A1 ITMI912941A1 (it) 1993-05-06
IT1251763B true IT1251763B (it) 1995-05-23

Family

ID=11361032

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI912941A IT1251763B (it) 1991-11-06 1991-11-06 Dispositivo per misurare con precisione la presenza di umidita'

Country Status (6)

Country Link
US (1) US5343735A (it)
EP (1) EP0541495B1 (it)
JP (1) JPH05240824A (it)
AT (1) ATE148559T1 (it)
DE (1) DE69217163T2 (it)
IT (1) IT1251763B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616827A (en) * 1995-06-15 1997-04-01 Ametek, Inc. Flow manifold for high purity analyzers
US5598971A (en) * 1995-08-17 1997-02-04 Bevles Company, Inc. Humidity control system
DE19543770C2 (de) * 1995-11-24 1998-11-05 Metallgesellschaft Ag Vorrichtung zur Messung von kondensierter Feuchtigkeit in Vorrichtungen und/oder Rohrleitungen der chemischen Technik und deren Verwendung
US5712421A (en) * 1996-01-30 1998-01-27 Arizona Instrument Corporation Moisture analyzer
DE19622530A1 (de) * 1996-06-05 1997-12-11 Testo Gmbh & Co Verfahren und Vorrichtung zum Ermitteln insbesondere des Feuchtegehalts eines Meßgasstroms
US6035698A (en) * 1998-03-31 2000-03-14 Lewin; Henry Apparatus for testing humidity of gas stream
JP2007010326A (ja) * 2005-06-28 2007-01-18 Futaba Electronics:Kk 匂い測定装置と匂い測定方法
KR100796935B1 (ko) * 2006-05-30 2008-01-22 한국과학기술연구원 수분응축현상을 이용한 오일 내 수분함량 측정장치 및측정방법

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900317A (en) * 1955-05-03 1959-08-18 Du Pont Coulometric reagent generation
US2830945A (en) * 1955-05-03 1958-04-15 Du Pont Apparatus for water determination
US2993853A (en) * 1957-04-15 1961-07-25 Cons Electrodynamics Corp Electrolytic cell
US3147202A (en) * 1960-03-18 1964-09-01 Exxon Research Engineering Co Determination of moisture by electrolysis
US3146181A (en) * 1961-05-25 1964-08-25 Cons Electrodynamics Corp Moisture analysis apparatus
US3166928A (en) * 1961-06-28 1965-01-26 Justin M Jackson Electrical automatic dew point hygrometer
US3244602A (en) * 1961-10-02 1966-04-05 John R Glass Method and apparatus for determining water content in gaseous media
US3630875A (en) * 1970-03-10 1971-12-28 Beckman Instruments Inc Hygrometer electrolytic cell
US3799846A (en) * 1972-06-09 1974-03-26 Olin Corp Moisture analysis method
US3926745A (en) * 1972-08-18 1975-12-16 Du Pont Deposition of p' 2'o' 5 'in an electrolytic moisture cell
US3926052A (en) * 1974-05-06 1975-12-16 Johnson Service Co Relative humidity computer
US4280885A (en) * 1979-11-09 1981-07-28 Savery James W Method of and apparatus for active electro-chemical water and similar environmental contaminant elimination in semi-conductor and other electronic and electrical devices and the like
CA1280910C (en) * 1988-11-02 1991-03-05 Paul Siska Dew point analyzer
US4800000A (en) * 1987-06-03 1989-01-24 Manufacturers Engineering Equipment Corp. Low level moisture measurement system and method
DE3720189C1 (de) * 1987-06-16 1988-12-29 Endress Hauser Gmbh Co Taupunkt-Sensor
US5139344A (en) * 1988-06-03 1992-08-18 Arthur Mutter Method and apparatus for dew point determination

Also Published As

Publication number Publication date
JPH05240824A (ja) 1993-09-21
EP0541495A2 (en) 1993-05-12
DE69217163D1 (de) 1997-03-13
EP0541495B1 (en) 1997-01-29
DE69217163T2 (de) 1997-06-05
ITMI912941A0 (it) 1991-11-06
ATE148559T1 (de) 1997-02-15
ITMI912941A1 (it) 1993-05-06
US5343735A (en) 1994-09-06
EP0541495A3 (it) 1994-01-26

Similar Documents

Publication Publication Date Title
IT1251763B (it) Dispositivo per misurare con precisione la presenza di umidita'
CA2023173A1 (en) Battery voltmeter
ES8605093A1 (es) Monitor de torre de refrigeracion
JPS5350982A (en) Low-high temperature testing station
JPS5271293A (en) Oxygen concentration meter
DE59202553D1 (de) Wärmedämmung mit wärmespeicher.
JPS5361290A (en) Temperature controller of semiconductor laser
JPS53128288A (en) Semiconductor laser element and production of the same
JPS54149686A (en) Pressure type temperature sensor
JPS5742846A (en) Zirconia oxygen sensor
JPS55103466A (en) Semiconductor device for flow speed electric conversion
CN101403637A (zh) 带温度补偿的热辐射功率计
Lathrop et al. Considerations for accurately determining the maximum power output of solar cells
SU834481A2 (ru) Способ определени коэффициентаэффЕКТиВНОй ТЕплОпРОВОдНОСТи СлО КуСКОВыХ МАТЕРиАлОВ
ES2185224T3 (es) Procedimiento y dispositivo para la determinacion de la corriente de carga de un acumulador.
JPS58130239U (ja) 温度側定回路
JPS57164583A (en) Self temperature compensating luminous device
Kellam Photobleaching Studies of the F
JPS57141524A (en) Temperature measuring device
ES2141130T3 (es) Transductor de flujo termico.
JPS5215182A (en) Power-saving fluorescent lighting tube
RU1800375C (ru) Датчик СВЧ мощности
JPS6437893A (en) Laser diode
SU532794A1 (ru) Устройство дл измерени теплопроводности
SU714299A1 (ru) Сверхвысокочастотный калориметр

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961021