GB1085825A - Improvements in or relating to the measurement of gas dissolved in liquid - Google Patents

Improvements in or relating to the measurement of gas dissolved in liquid

Info

Publication number
GB1085825A
GB1085825A GB2918765A GB2918765A GB1085825A GB 1085825 A GB1085825 A GB 1085825A GB 2918765 A GB2918765 A GB 2918765A GB 2918765 A GB2918765 A GB 2918765A GB 1085825 A GB1085825 A GB 1085825A
Authority
GB
United Kingdom
Prior art keywords
liquid
concentration
temperature
heater
bubbles
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
GB2918765A
Inventor
George Humphrey Tichenor
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.)
Schneider Electric Systems UK Ltd
Original Assignee
Foxboro Yoxall Ltd
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 Foxboro Yoxall Ltd filed Critical Foxboro Yoxall Ltd
Priority to GB2918765A priority Critical patent/GB1085825A/en
Publication of GB1085825A publication Critical patent/GB1085825A/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
    • G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1.085,825. Determining gases in liquids. FOXBORO-YOXALL Ltd. June 24, 1966 [July 9, 1965], No. 29187/65. Heading B1X. The concentration of a gas dissolved in a liquid is determined by measuring the temperature at which bobbles are formed when the liquid is heated to above the saturation temperature. In a first embodiment (Fig. 1) liquid is circulated between an upper reservoir 2, and a lower chamber 4 containing a heater 5 transmitting a constant quantity of heat to the liquid, by means of the lift imparted in a duct 7 by bubbles rising therethrough and the concentration of gas inferred from the temperature difference between the liquid in the reservoir and in the vicinity of the heater. When the concentration is large, the number of bubbles is greater, the circulation more rapid and the temperature difference smaller. In a second embodiment (Figs. 3 and 4, not shown), a generally similar circulation system comprises a transparent upflow tube (7) and a photocell detector system (7-9) detects the scattering due to bubbles in the tube and controls the heater by means of an amplifier and relay to provide a constant rate of bubble production: the concentration is inferred from the temperature in the vicinity of the heater. In a third embodiment (Fig. 5), a device comprising metallic strips 16, 17 embracing a heat ing element 15 is rigidly attached to support 12. Current is supplied to the element through contacts 14, 18 when the device is immersed in a liquid and some of the bubbles of gas which are released when the liquid is warmed, are entrapped under strip 17 which consequently becomes hotter than strip 16. The device distorts and contacts 14, 18 part, to cut off the current. A thermistor 19 measures the temperature of the bubble interface, from which the gas concentration is inferred.
GB2918765A 1965-07-09 1965-07-09 Improvements in or relating to the measurement of gas dissolved in liquid Expired GB1085825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2918765A GB1085825A (en) 1965-07-09 1965-07-09 Improvements in or relating to the measurement of gas dissolved in liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2918765A GB1085825A (en) 1965-07-09 1965-07-09 Improvements in or relating to the measurement of gas dissolved in liquid

Publications (1)

Publication Number Publication Date
GB1085825A true GB1085825A (en) 1967-10-04

Family

ID=10287545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2918765A Expired GB1085825A (en) 1965-07-09 1965-07-09 Improvements in or relating to the measurement of gas dissolved in liquid

Country Status (1)

Country Link
GB (1) GB1085825A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000631A2 (en) * 1985-07-25 1987-01-29 Ecole Nationale Superieure Des Industries Agricole Methods and devices for measuring the ratio of incondensables in a gas mixture
US4681601A (en) * 1983-12-28 1987-07-21 Polaroid Corporation Bubble injection dissolved gas measurement method and apparatus
US5029103A (en) * 1989-11-06 1991-07-02 The Electron Machine Corporation Carbon dioxide monitor
WO2014029675A1 (en) * 2012-08-21 2014-02-27 Siemens Aktiengesellschaft Method and device for measuring the gas content in a liquid, and use of such a device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681601A (en) * 1983-12-28 1987-07-21 Polaroid Corporation Bubble injection dissolved gas measurement method and apparatus
US4831867A (en) * 1985-07-23 1989-05-23 Jean Vasseur Methods and devices for measuring the ratio of incondensables in gas mixture
WO1987000631A2 (en) * 1985-07-25 1987-01-29 Ecole Nationale Superieure Des Industries Agricole Methods and devices for measuring the ratio of incondensables in a gas mixture
FR2585471A1 (en) * 1985-07-25 1987-01-30 Ensiaa METHODS AND THEIR DEVICES FOR IMPLEMENTING THE INCONDENSABLE RATE IN A GASEOUS MIXTURE
WO1987000631A3 (en) * 1985-07-25 1987-03-12 Ensiaa Methods and devices for measuring the ratio of incondensables in a gas mixture
US5029103A (en) * 1989-11-06 1991-07-02 The Electron Machine Corporation Carbon dioxide monitor
WO2014029675A1 (en) * 2012-08-21 2014-02-27 Siemens Aktiengesellschaft Method and device for measuring the gas content in a liquid, and use of such a device
US9651486B2 (en) 2012-08-21 2017-05-16 Siemens Aktiengesellschaft Method and device for measuring the gas content in a liquid, and use of such a device

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