FR2001133A1 - - Google Patents

Info

Publication number
FR2001133A1
FR2001133A1 FR6902117A FR6902117A FR2001133A1 FR 2001133 A1 FR2001133 A1 FR 2001133A1 FR 6902117 A FR6902117 A FR 6902117A FR 6902117 A FR6902117 A FR 6902117A FR 2001133 A1 FR2001133 A1 FR 2001133A1
Authority
FR
France
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Withdrawn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
FR6902117A
Other languages
French (fr)
Inventor
W E Gilson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2001133A1 publication Critical patent/FR2001133A1/fr
Withdrawn legal-status Critical Current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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Control Of Non-Electrical Variables (AREA)
FR6902117A 1968-02-01 1969-01-31 Withdrawn FR2001133A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70227368A 1968-02-01 1968-02-01

Publications (1)

Publication Number Publication Date
FR2001133A1 true FR2001133A1 (de) 1969-09-26

Family

ID=24820532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6902117A Withdrawn FR2001133A1 (de) 1968-02-01 1969-01-31

Country Status (5)

Country Link
JP (1) JPS4827945B1 (de)
DE (1) DE1904568B2 (de)
FR (1) FR2001133A1 (de)
GB (1) GB1254860A (de)
SE (1) SE375609B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417023C2 (de) * 1984-05-09 1987-04-09 Wolfgang Dr. 7000 Stuttgart Ruhrmann Sensor zum Messen des Füllstandes einer Flüssigkeit
DE3621009A1 (de) * 1986-06-23 1988-01-07 Truetzschler & Co Vorrichtung zur erfassung des fuellstandes in einem fasermaterialspeicher, insbesondere fuer spinnereivorbereitungsmaschinen
GB2251690A (en) * 1990-11-05 1992-07-15 Rodney Whitham Optical liquid level detector
CA2186805C (en) * 1995-12-01 2001-03-27 Christopher C. Jung Apparatus and method for sensing fluid level
US7786457B2 (en) 2006-06-28 2010-08-31 Alcon, Inc. Systems and methods of non-invasive level sensing for a surgical cassette
US8760637B2 (en) 2010-08-30 2014-06-24 Alcon Research, Ltd. Optical sensing system including electronically switched optical magnification

Also Published As

Publication number Publication date
DE1904568B2 (de) 1971-05-13
GB1254860A (en) 1971-11-24
JPS4827945B1 (de) 1973-08-28
SE375609B (de) 1975-04-21
DE1904568A1 (de) 1970-01-15

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Legal Events

Date Code Title Description
ST Notification of lapse