FR1530793A - Method and device for detecting the position of a moving surface - Google Patents

Method and device for detecting the position of a moving surface

Info

Publication number
FR1530793A
FR1530793A FR112396A FR112396A FR1530793A FR 1530793 A FR1530793 A FR 1530793A FR 112396 A FR112396 A FR 112396A FR 112396 A FR112396 A FR 112396A FR 1530793 A FR1530793 A FR 1530793A
Authority
FR
France
Prior art keywords
detecting
moving surface
moving
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
FR112396A
Other languages
French (fr)
Inventor
Fernand Beauvois
Pierre Beauvois
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
Priority to FR112396A priority Critical patent/FR1530793A/en
Application granted granted Critical
Publication of FR1530793A publication Critical patent/FR1530793A/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
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • 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
FR112396A 1967-06-29 1967-06-29 Method and device for detecting the position of a moving surface Expired FR1530793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR112396A FR1530793A (en) 1967-06-29 1967-06-29 Method and device for detecting the position of a moving surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR112396A FR1530793A (en) 1967-06-29 1967-06-29 Method and device for detecting the position of a moving surface

Publications (1)

Publication Number Publication Date
FR1530793A true FR1530793A (en) 1968-06-28

Family

ID=8634079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR112396A Expired FR1530793A (en) 1967-06-29 1967-06-29 Method and device for detecting the position of a moving surface

Country Status (1)

Country Link
FR (1) FR1530793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522139A1 (en) * 1982-02-22 1983-08-26 Thomson Brandt Liq. volume measuring appts. for e.g. motor vehicle IC engine - uses microprocessor controlled electromagnetic transducer to apply vibrations to elastic medium inside tube immersed in liq.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522139A1 (en) * 1982-02-22 1983-08-26 Thomson Brandt Liq. volume measuring appts. for e.g. motor vehicle IC engine - uses microprocessor controlled electromagnetic transducer to apply vibrations to elastic medium inside tube immersed in liq.

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