FR970192A - Mesureurs de distance - Google Patents

Mesureurs de distance

Info

Publication number
FR970192A
FR970192A FR970192DA FR970192A FR 970192 A FR970192 A FR 970192A FR 970192D A FR970192D A FR 970192DA FR 970192 A FR970192 A FR 970192A
Authority
FR
France
Prior art keywords
distance meters
meters
distance
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
Other languages
English (en)
Inventor
Francois-Henri Raymond
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 filed Critical
Application granted granted Critical
Publication of FR970192A publication Critical patent/FR970192A/fr
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
FR970192D 1948-08-06 1948-08-06 Mesureurs de distance Expired FR970192A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR970192T 1948-08-06

Publications (1)

Publication Number Publication Date
FR970192A true FR970192A (fr) 1951-01-02

Family

ID=9503886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970192D Expired FR970192A (fr) 1948-08-06 1948-08-06 Mesureurs de distance

Country Status (1)

Country Link
FR (1) FR970192A (fr)

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