GB1237409A - Method and device for the measurement of hygrometric degrees - Google Patents

Method and device for the measurement of hygrometric degrees

Info

Publication number
GB1237409A
GB1237409A GB3719268A GB3719268A GB1237409A GB 1237409 A GB1237409 A GB 1237409A GB 3719268 A GB3719268 A GB 3719268A GB 3719268 A GB3719268 A GB 3719268A GB 1237409 A GB1237409 A GB 1237409A
Authority
GB
United Kingdom
Prior art keywords
gas
pressure
dew point
reduced
point
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
GB3719268A
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of GB1237409A publication Critical patent/GB1237409A/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
    • 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
    • G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
    • G01N25/68—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of a condensing surface

Abstract

1,237,409. Measuring dew point. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Aug. 5, 1968 [Aug.4, 1967], No.37192/68. Heading G1S. Apparatus for measuring the dew point of a gas at high values of relative humidity comprises a gas pressure regulator 3 controlled by a manometer 4, a condensation hygrometer 2, a meter 7 keeping the rate of flow of gas constant, a valve member 6 producing a pressure drop, and a pump 5 keeping the gas at constant pressure through a line 8. Since the dew point of a gas containing water vapour is directly proportional to the pressure, then if the pressure is reduced the dew point is reduced. In the method of the invention the partial pressure of the water vapour present in the gas is reduced in the hygrometer by the apparatus above from say 500 mm Hg in Fig.2, point a, to say 100 mm Hg, point b, so that the dew point will be reduced from 90‹C. to 52‹C. which is within practical measuring range of current hygrometers.
GB3719268A 1967-08-04 1968-08-05 Method and device for the measurement of hygrometric degrees Expired GB1237409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR116837A FR1547507A (en) 1967-08-04 1967-08-04 Method and device for measuring hygrometric degrees

Publications (1)

Publication Number Publication Date
GB1237409A true GB1237409A (en) 1971-06-30

Family

ID=8636383

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3719268A Expired GB1237409A (en) 1967-08-04 1968-08-05 Method and device for the measurement of hygrometric degrees

Country Status (5)

Country Link
BE (1) BE718093A (en)
DE (1) DE1773943A1 (en)
FR (1) FR1547507A (en)
GB (1) GB1237409A (en)
LU (1) LU56595A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551586A (en) * 2020-06-19 2020-08-18 广州能源检测研究院 Compressed air pressure dew point detection device and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641524A (en) * 1985-08-15 1987-02-10 Kms Fusion, Inc. Optical humidity sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551586A (en) * 2020-06-19 2020-08-18 广州能源检测研究院 Compressed air pressure dew point detection device and method

Also Published As

Publication number Publication date
BE718093A (en) 1968-12-16
FR1547507A (en) 1968-11-29
LU56595A1 (en) 1968-10-31
DE1773943A1 (en) 1971-09-09

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