AU507603B2 - Liquid level indicator - Google Patents

Liquid level indicator

Info

Publication number
AU507603B2
AU507603B2 AU23315/77A AU2331577A AU507603B2 AU 507603 B2 AU507603 B2 AU 507603B2 AU 23315/77 A AU23315/77 A AU 23315/77A AU 2331577 A AU2331577 A AU 2331577A AU 507603 B2 AU507603 B2 AU 507603B2
Authority
AU
Australia
Prior art keywords
liquid level
level indicator
indicator
liquid
level
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
AU23315/77A
Other versions
AU2331577A (en
Inventor
G. W. and Pennewell R. J. E Roberts
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.)
General Motors Holdens Pty Ltd
Original Assignee
General Motors Holdens Pty Ltd
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 General Motors Holdens Pty Ltd filed Critical General Motors Holdens Pty Ltd
Priority to AU23315/77A priority Critical patent/AU507603B2/en
Publication of AU2331577A publication Critical patent/AU2331577A/en
Application granted granted Critical
Publication of AU507603B2 publication Critical patent/AU507603B2/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
    • G01F23/28—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
    • G01F23/2928—Light, e.g. infrared or ultraviolet for discrete levels using light reflected on the material surface
    • 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
    • G01F23/02—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 gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
    • 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
    • G01F23/04—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 dip members, e.g. dip-sticks

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
AU23315/77A 1976-03-24 1976-03-24 Liquid level indicator Expired AU507603B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23315/77A AU507603B2 (en) 1976-03-24 1976-03-24 Liquid level indicator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU23315/77A AU507603B2 (en) 1976-03-24 1976-03-24 Liquid level indicator
AUPC533676 1976-03-24

Publications (2)

Publication Number Publication Date
AU2331577A AU2331577A (en) 1978-09-21
AU507603B2 true AU507603B2 (en) 1980-02-21

Family

ID=25618908

Family Applications (1)

Application Number Title Priority Date Filing Date
AU23315/77A Expired AU507603B2 (en) 1976-03-24 1976-03-24 Liquid level indicator

Country Status (1)

Country Link
AU (1) AU507603B2 (en)

Also Published As

Publication number Publication date
AU2331577A (en) 1978-09-21

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