AU422545B2 - Liquid level indicator - Google Patents

Liquid level indicator

Info

Publication number
AU422545B2
AU422545B2 AU39684/68A AU3968468A AU422545B2 AU 422545 B2 AU422545 B2 AU 422545B2 AU 39684/68 A AU39684/68 A AU 39684/68A AU 3968468 A AU3968468 A AU 3968468A AU 422545 B2 AU422545 B2 AU 422545B2
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
AU39684/68A
Other versions
AU3968468A (en
Inventor
Martin Rapata George
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to AU39684/68A priority Critical patent/AU422545B2/en
Publication of AU3968468A publication Critical patent/AU3968468A/en
Application granted granted Critical
Publication of AU422545B2 publication Critical patent/AU422545B2/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
    • G01F23/2922—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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
AU39684/68A 1968-06-25 1968-06-25 Liquid level indicator Expired AU422545B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39684/68A AU422545B2 (en) 1968-06-25 1968-06-25 Liquid level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU39684/68A AU422545B2 (en) 1968-06-25 1968-06-25 Liquid level indicator

Publications (2)

Publication Number Publication Date
AU3968468A AU3968468A (en) 1970-01-08
AU422545B2 true AU422545B2 (en) 1972-03-16

Family

ID=3726763

Family Applications (1)

Application Number Title Priority Date Filing Date
AU39684/68A Expired AU422545B2 (en) 1968-06-25 1968-06-25 Liquid level indicator

Country Status (1)

Country Link
AU (1) AU422545B2 (en)

Also Published As

Publication number Publication date
AU3968468A (en) 1970-01-08

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