FR2391456B1 - - Google Patents
Info
- Publication number
- FR2391456B1 FR2391456B1 FR7814409A FR7814409A FR2391456B1 FR 2391456 B1 FR2391456 B1 FR 2391456B1 FR 7814409 A FR7814409 A FR 7814409A FR 7814409 A FR7814409 A FR 7814409A FR 2391456 B1 FR2391456 B1 FR 2391456B1
- 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.)
- Expired
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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
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 FR2391456A1 (en) | 1978-12-15 |
FR2391456B1 true 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) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2084322B (en) * | 1980-09-18 | 1984-08-30 | Avery Hardoll Ltd | Fluid measuring system |
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 |
FR2565345B1 (en) * | 1984-05-29 | 1988-10-14 | Renault | DEVICE FOR ULTRASONIC MEASUREMENT OF THE LEVEL AND / OR VOLUME OF A LIQUID IN A CONTAINER |
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 |
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 |
US11248946B1 (en) * | 2021-02-09 | 2022-02-15 | Aloft Sensor Technologies LLC | Devices, systems, and methods for measuring fluid level using radio-frequency (RF) localization |
Family Cites Families (9)
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 |
JPS4831863B1 (en) * | 1965-03-08 | 1973-10-02 | ||
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 |
DE2444222B2 (en) * | 1974-09-16 | 1977-09-01 | A Ott, GmbH, 8960 Kempten | METHOD AND DEVICE FOR CONTACTLESS MEASUREMENT OF LEVEL STANDARDS OR THE SAME |
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 |
-
1977
- 1977-05-17 CH CH611977A patent/CH619789A5/en not_active IP Right Cessation
-
1978
- 1978-04-20 DE DE19782817247 patent/DE2817247C3/en not_active Expired
- 1978-04-21 AT AT0285378A patent/AT367545B/en not_active IP Right Cessation
- 1978-05-16 FR FR7814409A patent/FR2391456A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
CH619789A5 (en) | 1980-10-15 |
AT367545B (en) | 1982-07-12 |
DE2817247A1 (en) | 1978-11-23 |
ATA285378A (en) | 1981-11-15 |
FR2391456A1 (en) | 1978-12-15 |
DE2817247C3 (en) | 1981-08-20 |
DE2817247B2 (en) | 1980-11-27 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |