FR1502377A - Appareil pour indiquer le niveau de l'eau dans une chaudière - Google Patents

Appareil pour indiquer le niveau de l'eau dans une chaudière

Info

Publication number
FR1502377A
FR1502377A FR85320A FR85320A FR1502377A FR 1502377 A FR1502377 A FR 1502377A FR 85320 A FR85320 A FR 85320A FR 85320 A FR85320 A FR 85320A FR 1502377 A FR1502377 A FR 1502377A
Authority
FR
France
Prior art keywords
boiler
indicating
water level
level
water
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
FR85320A
Other languages
English (en)
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics 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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Application granted granted Critical
Publication of FR1502377A publication Critical patent/FR1502377A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/02—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR85320A 1965-12-18 1966-11-29 Appareil pour indiquer le niveau de l'eau dans une chaudière Expired FR1502377A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5376765 1965-12-18

Publications (1)

Publication Number Publication Date
FR1502377A true FR1502377A (fr) 1967-11-18

Family

ID=10468912

Family Applications (1)

Application Number Title Priority Date Filing Date
FR85320A Expired FR1502377A (fr) 1965-12-18 1966-11-29 Appareil pour indiquer le niveau de l'eau dans une chaudière

Country Status (3)

Country Link
US (1) US3370469A (fr)
FR (1) FR1502377A (fr)
NL (1) NL6614501A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505868A (en) * 1967-11-08 1970-04-14 Clark Reliance Corp Viewing device for liquid level gages
US3794428A (en) * 1972-04-21 1974-02-26 Gen Motors Corp Optical liquid level indicator
JPS5130769A (ja) * 1974-09-09 1976-03-16 Mitsubishi Heavy Ind Ltd Ekimenkenshutsusochi
US7597000B2 (en) * 2006-07-27 2009-10-06 Hamilton Sundstrand Corporation Top view liquid sight level indicator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737126A (en) * 1927-05-24 1929-11-26 Reyling George Liquid-level indicator
GB879248A (en) * 1959-06-02 1961-10-11 Hopkinsons Ltd Improvements relating to water level indicators
US3128626A (en) * 1961-12-11 1964-04-14 Diamond Power Speciality Illuminator for liquid level gauge

Also Published As

Publication number Publication date
US3370469A (en) 1968-02-27
NL6614501A (fr) 1967-06-19

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