FR2249316A1 - Liq reflectometer used as vessel filling detector - uses total reflection of light rays within a paraboloid or ellipsoid hollow body - Google Patents

Liq reflectometer used as vessel filling detector - uses total reflection of light rays within a paraboloid or ellipsoid hollow body

Info

Publication number
FR2249316A1
FR2249316A1 FR7435918A FR7435918A FR2249316A1 FR 2249316 A1 FR2249316 A1 FR 2249316A1 FR 7435918 A FR7435918 A FR 7435918A FR 7435918 A FR7435918 A FR 7435918A FR 2249316 A1 FR2249316 A1 FR 2249316A1
Authority
FR
France
Prior art keywords
paraboloid
light rays
liq
hollow body
total reflection
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.)
Withdrawn
Application number
FR7435918A
Other languages
French (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.)
NEUELEKTRIK AG
Original Assignee
NEUELEKTRIK AG
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 NEUELEKTRIK AG filed Critical NEUELEKTRIK AG
Publication of FR2249316A1 publication Critical patent/FR2249316A1/en
Withdrawn legal-status Critical Current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

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)

Abstract

The equipment may be used for checking the filling of a vessel, typically an oil tank, with liquid, which fills an outer housing (9), within which is an inner body (1) of paraboloid or ellipsoidal form, which is normally filled with a gas such as air. A light source (2) is mounted at one focus of the system and a photo-electric cell or other photo-electric converter (3) at another focus. As long as the main vessel is full of liquid, the light rays from the source are totally reflected and converge on the pick-up to give a positive electric signal, which may be used to operate a level detector or a control device.
FR7435918A 1973-10-25 1974-10-25 Liq reflectometer used as vessel filling detector - uses total reflection of light rays within a paraboloid or ellipsoid hollow body Withdrawn FR2249316A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT907173A AT332138B (en) 1973-10-25 1973-10-25 DEVICE FOR DISPLAYING OR CONTROLLING THE LIQUID LEVEL IN A CONTAINER

Publications (1)

Publication Number Publication Date
FR2249316A1 true FR2249316A1 (en) 1975-05-23

Family

ID=3610949

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435918A Withdrawn FR2249316A1 (en) 1973-10-25 1974-10-25 Liq reflectometer used as vessel filling detector - uses total reflection of light rays within a paraboloid or ellipsoid hollow body

Country Status (3)

Country Link
AT (1) AT332138B (en)
CH (1) CH563572A5 (en)
FR (1) FR2249316A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319118A1 (en) * 1975-07-21 1977-02-18 Hectronic Ag OPTICO-ELECTRICAL PROBE FOR LIQUIDS
EP0007155A1 (en) * 1978-04-19 1980-01-23 See Probe Electronics Pty. Limited Monitoring apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519343A1 (en) * 1985-05-30 1986-12-04 Hella KG Hueck & Co, 4780 Lippstadt DEVICE FOR MEASURING AND MONITORING THE LEVEL OF A LIQUID CONTAINER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319118A1 (en) * 1975-07-21 1977-02-18 Hectronic Ag OPTICO-ELECTRICAL PROBE FOR LIQUIDS
EP0007155A1 (en) * 1978-04-19 1980-01-23 See Probe Electronics Pty. Limited Monitoring apparatus

Also Published As

Publication number Publication date
CH563572A5 (en) 1975-06-30
ATA907173A (en) 1975-12-15
AT332138B (en) 1976-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse