BE670977A - - Google Patents
Info
- Publication number
- BE670977A BE670977A BE670977DA BE670977A BE 670977 A BE670977 A BE 670977A BE 670977D A BE670977D A BE 670977DA BE 670977 A BE670977 A BE 670977A
- Authority
- BE
- Belgium
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
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
- G01F23/2928—Light, e.g. infrared or ultraviolet for discrete levels using light reflected on the material surface
-
- 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
- G01F23/0007—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 for discrete indicating and measuring
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/18—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Length Measuring Devices By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR993123A FR1422196A (fr) | 1964-10-29 | 1964-10-29 | Procédé et dispositif pour le repérage très précis de la position d'un objet |
Publications (1)
Publication Number | Publication Date |
---|---|
BE670977A true BE670977A (xx) | 1966-04-15 |
Family
ID=8841344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE670977D BE670977A (xx) | 1964-10-29 | 1965-10-15 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3511572A (xx) |
BE (1) | BE670977A (xx) |
CH (1) | CH449981A (xx) |
DE (1) | DE1498180A1 (xx) |
ES (1) | ES319003A1 (xx) |
FR (1) | FR1422196A (xx) |
GB (1) | GB1111859A (xx) |
NL (1) | NL6514042A (xx) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373815A (en) * | 1981-01-05 | 1983-02-15 | Marathon Oil Company | Method and apparatus for measuring leaks in liquid storage vessels |
US4604092A (en) * | 1983-04-11 | 1986-08-05 | The Kendall Company | Liquid drainage system with vertical movable light emitter and detector |
US4644790A (en) * | 1985-04-01 | 1987-02-24 | Sharp Kabushiki Kaisha | Liquid level indicator for humidifier |
US5073720A (en) * | 1990-07-30 | 1991-12-17 | The United States Of America As Represented By The Secretary Of The Navy | Liquid level and volume measurement device |
US5740693A (en) * | 1994-06-13 | 1998-04-21 | Daishowa Seiki Co., Ltd. | Photoelectric levelness detector |
GB2307043A (en) * | 1995-11-07 | 1997-05-14 | Boehringer Ingelheim Ltd | Liquid level determination |
US6448574B1 (en) * | 2000-03-14 | 2002-09-10 | Dade Behring Inc. | Method and apparatus for determining liquid levels in a liquid sample container |
EP1715304A1 (en) * | 2005-04-18 | 2006-10-25 | Agilent Technologies, Inc. | Fluid level detection by reflecting a beam at a meniscus |
DE102006001668A1 (de) * | 2006-01-12 | 2007-07-26 | Siemens Ag | Verfahren und Vorrichtung zur berührungslosen Füllstandskontrolle |
DE102010052870A1 (de) * | 2010-12-01 | 2012-06-06 | Baumer Innotec Ag | Füllstandserkennung |
FR2998957B1 (fr) * | 2012-11-30 | 2019-05-31 | Centre National De La Recherche Scientifique | Inclinometre longue base a mesure optique |
US10107665B2 (en) * | 2016-01-09 | 2018-10-23 | David R. Hall | Toilet with flush jet fill tube flow meter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1605014A (en) * | 1921-05-31 | 1926-11-02 | Pneumercator Company | Reading indicator for manometers |
US1959537A (en) * | 1930-08-18 | 1934-05-22 | Zeiss Carl Fa | Instrument for determining the diameter of bodies with curved surfaces |
US2418786A (en) * | 1943-10-16 | 1947-04-08 | Francis H Nadig | Hydraulic interferometer |
US2369798A (en) * | 1944-07-31 | 1945-02-20 | Diamond Power Speciality | Water gauge |
US2937234A (en) * | 1953-07-03 | 1960-05-17 | Bailey Meter Co | Television apparatus |
US2948186A (en) * | 1956-11-14 | 1960-08-09 | James M Kendall | Precision micromanometer |
GB1086932A (en) * | 1963-05-13 | 1967-10-11 | Elliott Brothers London Ltd | Improvements relating to apparatus for controlling or measuring fluid pressures |
-
1964
- 1964-10-29 FR FR993123A patent/FR1422196A/fr not_active Expired
-
1965
- 1965-10-13 US US495663A patent/US3511572A/en not_active Expired - Lifetime
- 1965-10-15 BE BE670977D patent/BE670977A/xx unknown
- 1965-10-15 GB GB43889/65A patent/GB1111859A/en not_active Expired
- 1965-10-18 CH CH1431465A patent/CH449981A/fr unknown
- 1965-10-26 DE DE19651498180 patent/DE1498180A1/de active Pending
- 1965-10-28 ES ES0319003A patent/ES319003A1/es not_active Expired
- 1965-10-29 NL NL6514042A patent/NL6514042A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1111859A (en) | 1968-05-01 |
CH449981A (fr) | 1968-01-15 |
DE1498180A1 (de) | 1969-02-06 |
ES319003A1 (es) | 1966-04-16 |
US3511572A (en) | 1970-05-12 |
NL6514042A (xx) | 1966-05-02 |
FR1422196A (fr) | 1965-12-24 |