FR2391456A1 - METHOD AND DEVICE FOR MEASURING FILLING DISTANCES OR HEIGHTS BY ACOUSTIC SOUNDING IN A GASEOUS FLUID BY MEANS OF SOUND WAVES - Google Patents

METHOD AND DEVICE FOR MEASURING FILLING DISTANCES OR HEIGHTS BY ACOUSTIC SOUNDING IN A GASEOUS FLUID BY MEANS OF SOUND WAVES

Info

Publication number
FR2391456A1
FR2391456A1 FR7814409A FR7814409A FR2391456A1 FR 2391456 A1 FR2391456 A1 FR 2391456A1 FR 7814409 A FR7814409 A FR 7814409A FR 7814409 A FR7814409 A FR 7814409A FR 2391456 A1 FR2391456 A1 FR 2391456A1
Authority
FR
France
Prior art keywords
pulse
supplied
sound wave
clock
stage
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.)
Granted
Application number
FR7814409A
Other languages
French (fr)
Other versions
FR2391456B1 (en
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.)
Hach Lange SARL
Original Assignee
Zuellig AG
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 Zuellig AG filed Critical Zuellig AG
Publication of FR2391456A1 publication Critical patent/FR2391456A1/en
Application granted granted Critical
Publication of FR2391456B1 publication Critical patent/FR2391456B1/fr
Granted 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
    • G01F23/2962—Measuring transit time of reflected waves

Abstract

An electroacoustic transducer (22) of this device is used for emitting sound wave trains against a surface to be measured and a reference reflection surface and also for receiving the echoes from the said surfaces. To generate a sound wave train, the transducer (22) is in each case excited into a decaying resonant oscillation by means of an electric pulse from a free-running pulse generator (21). During each measuring process, an electric transmit pulse, a reference echo pulse and a measurement echo pulse are supplied to a shift register (24) which distributes these pulses to three lines (24S, 24R, 24M). Clock pulses for measuring the transit time of the sound wave trains are supplied to a pulse counter (26) which can be started in each case by the transmit pulse. The counting output (39) of the pulse counter (26) is connected to a memory for the count result on occurrence of the measurement echo pulse, and to a circuit arrangement (31) for automatically controlling the repetition rate of the clock pulse transmitter (30). This circuit arrangement (31) contains a digital coincidence stage (52), which can be preset in accordance with the known distance of the reference reflection surface, and a first-pulse detection stage (55). The latter is supplied with the output signal of the coincidence stage (52) and the reference echo pulse. The first-pulse detection stage (55) controls a control voltage for the clock pulse transmitter (30).
FR7814409A 1977-05-17 1978-05-16 METHOD AND DEVICE FOR MEASURING FILLING DISTANCES OR HEIGHTS BY ACOUSTIC SOUNDING IN A GASEOUS FLUID BY MEANS OF SOUND WAVES Granted FR2391456A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH611977A CH619789A5 (en) 1977-05-17 1977-05-17 Device for measuring distances, particularly for determining a filling level, by echo sounding by means of sound waves in a gaseous medium

Publications (2)

Publication Number Publication Date
FR2391456A1 true FR2391456A1 (en) 1978-12-15
FR2391456B1 FR2391456B1 (en) 1980-07-18

Family

ID=4304579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814409A Granted FR2391456A1 (en) 1977-05-17 1978-05-16 METHOD AND DEVICE FOR MEASURING FILLING DISTANCES OR HEIGHTS BY ACOUSTIC SOUNDING IN A GASEOUS FLUID BY MEANS OF SOUND WAVES

Country Status (4)

Country Link
AT (1) AT367545B (en)
CH (1) CH619789A5 (en)
DE (1) DE2817247C3 (en)
FR (1) FR2391456A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048580A1 (en) * 1980-09-18 1982-03-31 Avery-Hardoll Limited Liquid storage and measurement system
FR2565345A1 (en) * 1984-05-29 1985-12-06 Renault DEVICE FOR ULTRASONIC MEASUREMENT OF THE LEVEL AND / OR VOLUME OF A LIQUID IN A CONTAINER
WO2022173869A1 (en) * 2021-02-09 2022-08-18 Aloft Sensor Technologies LLC Devices, systems, and methods for measuring fluid level using radio-frequency (rf) localization
US11898892B2 (en) 2021-02-09 2024-02-13 Aloft Sensor Technologies LLC Devices, systems, and methods for measuring fluid level using radio-frequency (RF) localization

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3210470C2 (en) * 1982-03-22 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Ultrasonic sensor
DE3337690A1 (en) * 1983-10-17 1985-04-25 VEGA Grieshaber GmbH & Co, 7620 Wolfach Method and device for measuring the filling level in a container by means of sound/ultrasonic waves
DE3438045C2 (en) * 1983-11-04 1986-12-18 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Arrangement for signal transmission in ultrasonic echo sounders
US4677305A (en) * 1985-06-28 1987-06-30 Simmonds Precision Products, Inc. Opto-acoustic fuel quantity gauging system
GB8607111D0 (en) * 1986-03-21 1986-04-30 Procontech Ltd Liquid level sensing
US4669310A (en) * 1986-03-26 1987-06-02 The Babcock & Wilcox Company High frequency ultrasonic technique for measuring oxide scale on the inner surface of boiler tubes
JPS6362673A (en) * 1986-09-01 1988-03-18 Speedfam Co Ltd Surface polishing machine associated with fixed dimension mechanism
DE3808099A1 (en) * 1988-03-11 1989-09-21 Ulrich Dr Opara Method for non-touching (contact-free) measurement of the inclination of a surface by means of ultrasound
GB201705184D0 (en) * 2017-03-31 2017-05-17 Sharman H D Ltd Monitoring apparatus for guttering systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394589A (en) * 1965-03-08 1968-07-30 Japan Radio Company Ltd Apparatus for measuring liquid level
DE2444222A1 (en) * 1974-09-16 1976-07-29 Ott Fa A Contactless determination of liquid levels - sound pulses reflected from above boundary surface for distance measurement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931378C (en) * 1952-12-19 1955-08-08 Atlas Werke Ag Device for measuring the standing height in containers by echo sounding
US2753542A (en) * 1953-09-03 1956-07-03 Bogue Elec Mfg Co Calibrated apparatus for measuring liquid levels
DE1211518B (en) * 1955-04-05 1966-02-24 Phil Nat Siegfried Fahrentholz Calibratable acoustic echo sounder device and method of using it
US3184969A (en) * 1963-06-10 1965-05-25 Gen Signal Corp Liquid level indication system
DE1958030A1 (en) * 1969-11-19 1971-05-19 Siemens Ag Ultrasound device
DE2313149A1 (en) * 1973-03-16 1974-09-19 Transfer Technik Gmbh PROCEDURE AND EQUIPMENT FOR ULRASONIC LENGTH MEASUREMENT
DE2515087C3 (en) * 1975-04-07 1979-10-18 Karl-Heinz Keuth Gmbh, 5414 Vallendar Device for the contactless determination of short distances in the measuring range of a tape measure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394589A (en) * 1965-03-08 1968-07-30 Japan Radio Company Ltd Apparatus for measuring liquid level
DE2444222A1 (en) * 1974-09-16 1976-07-29 Ott Fa A Contactless determination of liquid levels - sound pulses reflected from above boundary surface for distance measurement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048580A1 (en) * 1980-09-18 1982-03-31 Avery-Hardoll Limited Liquid storage and measurement system
FR2565345A1 (en) * 1984-05-29 1985-12-06 Renault DEVICE FOR ULTRASONIC MEASUREMENT OF THE LEVEL AND / OR VOLUME OF A LIQUID IN A CONTAINER
EP0165852A1 (en) * 1984-05-29 1985-12-27 Regie Nationale Des Usines Renault Apparatus for the ultrasonic measurement of the liquid level and/or volume in a container
WO2022173869A1 (en) * 2021-02-09 2022-08-18 Aloft Sensor Technologies LLC Devices, systems, and methods for measuring fluid level using radio-frequency (rf) localization
US11898892B2 (en) 2021-02-09 2024-02-13 Aloft Sensor Technologies LLC Devices, systems, and methods for measuring fluid level using radio-frequency (RF) localization

Also Published As

Publication number Publication date
FR2391456B1 (en) 1980-07-18
CH619789A5 (en) 1980-10-15
DE2817247C3 (en) 1981-08-20
DE2817247A1 (en) 1978-11-23
DE2817247B2 (en) 1980-11-27
AT367545B (en) 1982-07-12
ATA285378A (en) 1981-11-15

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Legal Events

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