FR2531530B1 - Dispositif de detection optique d'un niveau de liquide - Google Patents

Dispositif de detection optique d'un niveau de liquide

Info

Publication number
FR2531530B1
FR2531530B1 FR8213762A FR8213762A FR2531530B1 FR 2531530 B1 FR2531530 B1 FR 2531530B1 FR 8213762 A FR8213762 A FR 8213762A FR 8213762 A FR8213762 A FR 8213762A FR 2531530 B1 FR2531530 B1 FR 2531530B1
Authority
FR
France
Prior art keywords
liquid level
optical detection
optical
detection
liquid
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
FR8213762A
Other languages
English (en)
Other versions
FR2531530A1 (fr
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
Priority to FR8213762A priority Critical patent/FR2531530B1/fr
Priority to EP19830902271 priority patent/EP0115494A1/fr
Priority to PCT/FR1983/000163 priority patent/WO1984000811A1/fr
Publication of FR2531530A1 publication Critical patent/FR2531530A1/fr
Application granted granted Critical
Publication of FR2531530B1 publication Critical patent/FR2531530B1/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
    • 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
    • G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR8213762A 1982-08-06 1982-08-06 Dispositif de detection optique d'un niveau de liquide Expired FR2531530B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8213762A FR2531530B1 (fr) 1982-08-06 1982-08-06 Dispositif de detection optique d'un niveau de liquide
EP19830902271 EP0115494A1 (fr) 1982-08-06 1983-07-29 Dispositif de detection optique d'un niveau de liquide
PCT/FR1983/000163 WO1984000811A1 (fr) 1982-08-06 1983-07-29 Dispositif de detection optique d'un niveau de liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8213762A FR2531530B1 (fr) 1982-08-06 1982-08-06 Dispositif de detection optique d'un niveau de liquide

Publications (2)

Publication Number Publication Date
FR2531530A1 FR2531530A1 (fr) 1984-02-10
FR2531530B1 true FR2531530B1 (fr) 1988-05-27

Family

ID=9276697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8213762A Expired FR2531530B1 (fr) 1982-08-06 1982-08-06 Dispositif de detection optique d'un niveau de liquide

Country Status (3)

Country Link
EP (1) EP0115494A1 (fr)
FR (1) FR2531530B1 (fr)
WO (1) WO1984000811A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606211B (zh) * 2012-03-26 2014-04-09 武汉理工大学 光纤光栅分布式缆井安全监测系统
CN116519088B (zh) * 2023-07-03 2023-10-17 深圳市柏金科技有限公司 无源涉水传感器、检测方法及液位测量的系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938032A1 (de) * 1969-07-26 1971-01-28 Emkade Gmbh Grenzwertgeber fuer fluessige Medien
DE2139865B2 (de) * 1971-08-09 1976-12-02 Ulrich, Helmut, Dipl.-Chem., 8000 München Fuellstandsanzeiger oder zustandsdetektor mit einem durch eine trennwand hindurchgefuehrten, im wesentlichen geraden lichtleiterstab
LU67405A1 (fr) * 1973-04-11 1973-06-18
US4287427A (en) * 1977-10-17 1981-09-01 Scifres Donald R Liquid-level monitor
GB2036326B (en) * 1978-10-20 1983-08-17 Klinger Ag Liquid level sensor
GB2076960B (en) * 1980-05-29 1983-10-26 Standard Telephones Cables Ltd Liquid sensor

Also Published As

Publication number Publication date
FR2531530A1 (fr) 1984-02-10
EP0115494A1 (fr) 1984-08-15
WO1984000811A1 (fr) 1984-03-01

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Legal Events

Date Code Title Description
ST Notification of lapse