DE3067372D1 - Liquid level sensor - Google Patents
Liquid level sensorInfo
- Publication number
- DE3067372D1 DE3067372D1 DE8080303701T DE3067372T DE3067372D1 DE 3067372 D1 DE3067372 D1 DE 3067372D1 DE 8080303701 T DE8080303701 T DE 8080303701T DE 3067372 T DE3067372 T DE 3067372T DE 3067372 D1 DE3067372 D1 DE 3067372D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid level
- level sensor
- sensor
- liquid
- level
- 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
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
- G01F23/2961—Acoustic waves for discrete levels
-
- 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
- G01F23/2965—Measuring attenuation of transmitted waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7937413 | 1979-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3067372D1 true DE3067372D1 (en) | 1984-05-10 |
Family
ID=10508834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080303701T Expired DE3067372D1 (en) | 1979-10-29 | 1980-10-20 | Liquid level sensor |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0028114B1 (de) |
DE (1) | DE3067372D1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128326B (en) * | 1982-10-05 | 1986-08-06 | Itt Ind Ltd | Non-intrusive liquid level switch |
US4679430A (en) * | 1983-03-30 | 1987-07-14 | United Kingdom Atomic Energy Authority | Ultrasonic liquid interface detector |
GB2168150B (en) * | 1984-12-05 | 1988-12-14 | Atomic Energy Authority Uk | Pipeline inspection |
GB8903532D0 (en) * | 1989-02-16 | 1989-04-05 | Rolls Royce Plc | A fluid level monitor |
GB9819917D0 (en) * | 1998-09-11 | 1998-11-04 | Meggitt Mobrey Limited | Piezoelectric transducer assembly and method |
US8630814B2 (en) | 2011-01-31 | 2014-01-14 | Xylem IP Holdings LLC. | Ultrasonic water level gauge and control device |
DE102012100728A1 (de) * | 2012-01-30 | 2013-08-01 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße |
US10151618B2 (en) | 2014-01-24 | 2018-12-11 | Versum Materials Us, Llc | Ultrasonic liquid level sensing systems |
CN112985544A (zh) * | 2019-12-13 | 2021-06-18 | 西安定华电子股份有限公司 | 外测液位系统 |
CN112985545A (zh) * | 2019-12-17 | 2021-06-18 | 西安定华电子股份有限公司 | 外测液位开关和外测液位方法 |
DE102020114777A1 (de) | 2020-06-03 | 2021-12-09 | Tdk Electronics Ag | Ultraschallwandler und Verfahren zum Betrieb eines Ultraschallwandlers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713263A (en) * | 1952-07-07 | 1955-07-19 | Raytheon Mfg Co | Ullage measuring devices |
GB809681A (en) * | 1956-03-20 | 1959-03-04 | Bailey Meters Controls Ltd | Improvements in apparatus for detecting the presence or absence at a location, of a body of liquid |
US3010318A (en) * | 1959-04-02 | 1961-11-28 | Charles E Mongan | Method and apparatus for measuring liquid level |
GB873538A (en) * | 1959-05-12 | 1961-07-26 | Howe Sound Co | Ultrasonic liquid level indication |
US3520186A (en) * | 1968-03-11 | 1970-07-14 | Nat Sonics Corp | Ultrasonic fluid interface sensing |
GB1555549A (en) * | 1976-07-16 | 1979-11-14 | Vni I Konstrukt I | Method of and device for detecting a fluid liquid interface in a container |
JPS5376889A (en) * | 1976-12-18 | 1978-07-07 | Denki Kagaku Keiki Kk | Sensor for oils* etc* |
-
1980
- 1980-10-20 DE DE8080303701T patent/DE3067372D1/de not_active Expired
- 1980-10-20 EP EP19800303701 patent/EP0028114B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0028114B1 (de) | 1984-04-04 |
EP0028114A3 (en) | 1981-11-04 |
EP0028114A2 (de) | 1981-05-06 |
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