GB1056032A - Improvements in or relating to fluid indicating apparatus - Google Patents

Improvements in or relating to fluid indicating apparatus

Info

Publication number
GB1056032A
GB1056032A GB1457464A GB1457464A GB1056032A GB 1056032 A GB1056032 A GB 1056032A GB 1457464 A GB1457464 A GB 1457464A GB 1457464 A GB1457464 A GB 1457464A GB 1056032 A GB1056032 A GB 1056032A
Authority
GB
United Kingdom
Prior art keywords
fluid
failure indication
container
network
indicating
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
GB1457464A
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.)
Central Electricity Generating Board
Original Assignee
Central Electricity Generating Board
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 Central Electricity Generating Board filed Critical Central Electricity Generating Board
Priority to GB1457464A priority Critical patent/GB1056032A/en
Publication of GB1056032A publication Critical patent/GB1056032A/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
    • G01F23/22—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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

1,056,032. Electric selective signalling. CENTRAL ELECTRICITY GENERATING BOARD, E. F. HASLER, R. E. MARTIN and J. N. PREWETT. June 17, 1965 [April 8, 1964], No. 14574/64. Heading G4H. Apparatus for indicating which of two fluids is present at a number of different levels in a container has means for indicating failure if the heavier fluid is indicated to be at one level but not at a lower level. In the particular embodiment, probes in the container energize corresponding relays when in the heavier fluid. Each relay lights one of two lamps and controls contacts in a network which gives the failure indication if necessary. The failure indication is also given if the fluid-fluid interface is not within limits preset on switches incorporated in the network. Alternate probes and their relays may have different power supplies, there being two contact networks in parallel so either can give the failure indication.
GB1457464A 1964-04-08 1964-04-08 Improvements in or relating to fluid indicating apparatus Expired GB1056032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1457464A GB1056032A (en) 1964-04-08 1964-04-08 Improvements in or relating to fluid indicating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1457464A GB1056032A (en) 1964-04-08 1964-04-08 Improvements in or relating to fluid indicating apparatus

Publications (1)

Publication Number Publication Date
GB1056032A true GB1056032A (en) 1967-01-25

Family

ID=10043670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1457464A Expired GB1056032A (en) 1964-04-08 1964-04-08 Improvements in or relating to fluid indicating apparatus

Country Status (1)

Country Link
GB (1) GB1056032A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323295A1 (en) * 1972-05-10 1973-11-29 Robert Edgar Martin DISPLAY DEVICE FOR TRIGGERING AN ALARM AND / OR FOR THE PURPOSE OF A SAFETY CONTROL
US3967501A (en) * 1974-06-19 1976-07-06 Armco Steel Corporation Slag level detection system
US4711117A (en) * 1984-05-16 1987-12-08 Schlumberger Electronics, Inc. Side arm fluid level gauge with spaced-apart sensors for density error compensation
EP0627615A1 (en) * 1993-05-29 1994-12-07 Solartron Group Limited Fluid level sensing systems
US5565851A (en) * 1993-03-27 1996-10-15 Solartron Group Limited Fluid level sensing systems
US6118190A (en) * 1997-06-27 2000-09-12 Solartron Group Limited Fail-safe system
WO2002044657A2 (en) * 2000-11-29 2002-06-06 Clark-Reliance Corporation Method for detecting faulty liquid level sensors

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323295A1 (en) * 1972-05-10 1973-11-29 Robert Edgar Martin DISPLAY DEVICE FOR TRIGGERING AN ALARM AND / OR FOR THE PURPOSE OF A SAFETY CONTROL
US3967501A (en) * 1974-06-19 1976-07-06 Armco Steel Corporation Slag level detection system
US4711117A (en) * 1984-05-16 1987-12-08 Schlumberger Electronics, Inc. Side arm fluid level gauge with spaced-apart sensors for density error compensation
US5565851A (en) * 1993-03-27 1996-10-15 Solartron Group Limited Fluid level sensing systems
EP0627615A1 (en) * 1993-05-29 1994-12-07 Solartron Group Limited Fluid level sensing systems
US5553494A (en) * 1993-05-29 1996-09-10 Solartron Group Limited Fluid level sensing systems
US6118190A (en) * 1997-06-27 2000-09-12 Solartron Group Limited Fail-safe system
WO2002044657A2 (en) * 2000-11-29 2002-06-06 Clark-Reliance Corporation Method for detecting faulty liquid level sensors
WO2002044657A3 (en) * 2000-11-29 2003-03-20 Clark Reliance Corp Method for detecting faulty liquid level sensors
US6575010B2 (en) 2000-11-29 2003-06-10 Clark-Reliance Corporation Method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers
GB2388946A (en) * 2000-11-29 2003-11-26 Clark Reliance Corp Method for detecting faulty liquid level sensors
GB2388946B (en) * 2000-11-29 2004-05-12 Clark Reliance Corp Method and system for detecting and cross checking faulty sensors in liquid level indicators and controllers

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