GB1158138A - Level-Measuring System - Google Patents

Level-Measuring System

Info

Publication number
GB1158138A
GB1158138A GB4827666D GB4827666D GB1158138A GB 1158138 A GB1158138 A GB 1158138A GB 4827666 D GB4827666 D GB 4827666D GB 4827666 D GB4827666 D GB 4827666D GB 1158138 A GB1158138 A GB 1158138A
Authority
GB
United Kingdom
Prior art keywords
frequency
taps
oscillator
tappings
float
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
GB4827666D
Inventor
Winfried Becker
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.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
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 European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Publication of GB1158138A publication Critical patent/GB1158138A/en
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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/72—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
    • 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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating 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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/72—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

1,158,138. Measuring liquid level electrically. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Oct. 27, 1966 [Nov. 2, 1965], No.48276/66. Heading G1N. [Also in Division G4] In a liquid level measuring system a vertical tube 11 inside which a float 6 is positioned is surrounded by a coil 9 tapped at m equidistant points 10, the taps being connected in pairs via a two-out-of-m switching unit to an oscillator 14. The float is made from a material which is either ferromagnetic or a good electrical conductor or alternatively carries a member made of such material so that as it moves inside the coil the frequency of oscillation of the oscillator varies. In the embodiment described relay contacts close under the control of a selector switch to sequentially connect pairs of taps to the oscillatorpreferably taps n and n+2 (n = 1 . . . m-2) are interconnected. The selector switch is rotated by a control unit 18 until the frequency detector 16 detects a change in frequency. The display in an indicator panel 19 represents which pair of tappings are spannedby the member 7 and the frequency of the oscillator at that time may also be displayed to give a fine indication of the position of the member 7 relative to the tappings.
GB4827666D 1965-11-02 1966-10-27 Level-Measuring System Expired GB1158138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965E0030407 DE1263333B (en) 1965-11-02 1965-11-02 Level measuring device

Publications (1)

Publication Number Publication Date
GB1158138A true GB1158138A (en) 1969-07-16

Family

ID=7074486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4827666D Expired GB1158138A (en) 1965-11-02 1966-10-27 Level-Measuring System

Country Status (5)

Country Link
BE (1) BE688949A (en)
DE (1) DE1263333B (en)
GB (1) GB1158138A (en)
LU (1) LU52253A1 (en)
NL (1) NL6614952A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210298C3 (en) * 1972-03-03 1981-05-21 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach Level meter for liquids
DE3319277A1 (en) * 1983-05-27 1984-11-29 Alfa-Laval Agrar Gmbh, 2056 Glinde Float for level control
US4845986A (en) * 1985-08-14 1989-07-11 Toyoda Gosei Co., Ltd. Liquid level indication device
DE4024110A1 (en) * 1989-09-01 1991-03-14 Mahle Gmbh Liquid level detector for container - has non-ferromagnetic float with short circuit winding acting as core in coil
IT1257287B (en) * 1992-05-12 1996-01-12 Siceb Spa ELECTRIC FUEL INDICATOR CONTAINED IN THE TANK OF A VEHICLE.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1743113U (en) * 1957-02-15 1957-04-11 Fritz Dipl Ing Aicher DEVICE FOR REINFORCEMENT, IN PARTICULAR PLASTIC LICENSE PLATES FOR MOTOR VEHICLES.

Also Published As

Publication number Publication date
DE1263333B (en) 1968-03-14
BE688949A (en) 1967-03-31
LU52253A1 (en) 1966-12-28
NL6614952A (en) 1967-05-03

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees