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FR2148650A1 - - Google Patents

Info

Publication number
FR2148650A1
FR2148650A1 FR7229247A FR7229247A FR2148650A1 FR 2148650 A1 FR2148650 A1 FR 2148650A1 FR 7229247 A FR7229247 A FR 7229247A FR 7229247 A FR7229247 A FR 7229247A FR 2148650 A1 FR2148650 A1 FR 2148650A1
Authority
FR
France
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.)
Granted
Application number
FR7229247A
Other languages
French (fr)
Other versions
FR2148650B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2148650A1 publication Critical patent/FR2148650A1/fr
Application granted granted Critical
Publication of FR2148650B1 publication Critical patent/FR2148650B1/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
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • 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
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
FR7229247A 1971-08-09 1972-08-08 Expired FR2148650B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712139865 DE2139865B2 (en) 1971-08-09 1971-08-09 LEVEL INDICATOR OR CONDITION DETECTOR WITH A LIGHT GUIDING ROD PASSED THROUGH A PARTITION WALL

Publications (2)

Publication Number Publication Date
FR2148650A1 true FR2148650A1 (en) 1973-03-23
FR2148650B1 FR2148650B1 (en) 1976-03-12

Family

ID=5816253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229247A Expired FR2148650B1 (en) 1971-08-09 1972-08-08

Country Status (6)

Country Link
BE (1) BE787319A (en)
CH (1) CH567714A5 (en)
DE (1) DE2139865B2 (en)
FR (1) FR2148650B1 (en)
GB (1) GB1387672A (en)
NL (1) NL7210710A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007155A1 (en) * 1978-04-19 1980-01-23 See Probe Electronics Pty. Limited Monitoring apparatus
FR2531530A1 (en) * 1982-08-06 1984-02-10 Fayollet Roland DEVICE FOR THE OPTICAL DETECTION OF A LIQUID LEVEL
EP0167014A2 (en) * 1984-06-27 1986-01-08 Degussa Aktiengesellschaft Process for treating fluidized carbon black with gases and fluidizing apparatus for carrying it out

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8218877U1 (en) * 1982-07-01 1982-10-07 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart FACILITIES, IN PARTICULAR ON DISHWASHER, ZURNIVEAURE REGULATION
DE3526266A1 (en) * 1985-07-23 1987-02-05 Fraunhofer Ges Forschung Optical level sensor
DE3617717C2 (en) * 1986-05-27 1995-08-17 Siemens Ag Fiber optic level sensor
US5279157A (en) * 1992-08-03 1994-01-18 Casco Products Corporation Liquid level monitor
DE102014209734A1 (en) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Dryers with internal cleaning of a water level sensor and method for its operation
DE102016217926A1 (en) * 2016-09-19 2018-03-22 Continental Automotive Gmbh Level measuring device with a measuring tube and cover device for the level measuring device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007155A1 (en) * 1978-04-19 1980-01-23 See Probe Electronics Pty. Limited Monitoring apparatus
FR2531530A1 (en) * 1982-08-06 1984-02-10 Fayollet Roland DEVICE FOR THE OPTICAL DETECTION OF A LIQUID LEVEL
EP0167014A2 (en) * 1984-06-27 1986-01-08 Degussa Aktiengesellschaft Process for treating fluidized carbon black with gases and fluidizing apparatus for carrying it out
EP0167014A3 (en) * 1984-06-27 1987-09-09 Degussa Aktiengesellschaft Process for treating fluidized carbon black with gases, fluidizing apparatus for carrying it out and device for indicating the limit of the bed to be used in the apparatus

Also Published As

Publication number Publication date
GB1387672A (en) 1975-03-19
DE2139865A1 (en) 1973-02-15
NL7210710A (en) 1973-02-13
FR2148650B1 (en) 1976-03-12
DE2139865B2 (en) 1976-12-02
BE787319A (en) 1972-12-01
CH567714A5 (en) 1975-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse