BE827684A - Detecteur optique pour deceler le niveau d'un liquide dans un tube - Google Patents
Detecteur optique pour deceler le niveau d'un liquide dans un tubeInfo
- Publication number
- BE827684A BE827684A BE155188A BE155188A BE827684A BE 827684 A BE827684 A BE 827684A BE 155188 A BE155188 A BE 155188A BE 155188 A BE155188 A BE 155188A BE 827684 A BE827684 A BE 827684A
- Authority
- BE
- Belgium
- Prior art keywords
- detect
- tube
- liquid
- level
- optical detector
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US458867A US3908129A (en) | 1974-04-08 | 1974-04-08 | Manometer level detector |
Publications (1)
Publication Number | Publication Date |
---|---|
BE827684A true BE827684A (fr) | 1975-07-31 |
Family
ID=23822406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE155188A BE827684A (fr) | 1974-04-08 | 1975-04-08 | Detecteur optique pour deceler le niveau d'un liquide dans un tube |
Country Status (7)
Country | Link |
---|---|
US (1) | US3908129A (fr) |
JP (1) | JPS50137565A (fr) |
AU (1) | AU7985575A (fr) |
BE (1) | BE827684A (fr) |
DE (1) | DE2515116A1 (fr) |
FR (1) | FR2266874A1 (fr) |
IT (1) | IT1034879B (fr) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4012671A (en) * | 1975-10-14 | 1977-03-15 | Gulf & Western Industries, Inc. | Trigger circuit |
CA1087274A (fr) * | 1976-09-02 | 1980-10-07 | William F. Jacobsen | Capteur de niveau a impulsions |
CA1087269A (fr) * | 1976-09-03 | 1980-10-07 | William F. Jacobsen | Detecteur de niveau sensible a la frequence |
US4083255A (en) * | 1977-03-04 | 1978-04-11 | The United States Of America As Represented By The Secretary Of The Navy | Hydro-optic vibration detector |
CH614044A5 (fr) * | 1977-03-07 | 1979-10-31 | Benno Perren | |
EP0003566A1 (fr) * | 1978-02-03 | 1979-08-22 | Siemens Aktiengesellschaft | Indicateur de niveau |
US4232528A (en) * | 1978-03-16 | 1980-11-11 | Emerson Electric Co. | Frost detector |
USRE31248E (en) * | 1978-06-07 | 1983-05-24 | Paul J. Berger | Electro-mechanical transducer |
US4214485A (en) * | 1978-06-07 | 1980-07-29 | Paul J. Berger | Electro-mechanical transducer |
US4399711A (en) * | 1980-04-18 | 1983-08-23 | Beckman Instruments, Inc. | Method and apparatus ensuring full volume pickup in an automated pipette |
US4342996A (en) * | 1980-10-29 | 1982-08-03 | Jannotta Louis J | Two disc encoder system for monitoring height of liquid in storage tank |
US4481595A (en) * | 1981-06-19 | 1984-11-06 | Hans Schiessl | Method and apparatus for determining the fill level of containers |
US4419903A (en) * | 1982-02-22 | 1983-12-13 | Beckman Instruments, Inc. | Method and apparatus for detecting insufficient liquid levels |
DE3621009A1 (de) * | 1986-06-23 | 1988-01-07 | Truetzschler & Co | Vorrichtung zur erfassung des fuellstandes in einem fasermaterialspeicher, insbesondere fuer spinnereivorbereitungsmaschinen |
JPH01169324A (ja) * | 1987-01-09 | 1989-07-04 | Sasabe Hirakazu | 液位検知装置 |
US4899575A (en) * | 1988-07-29 | 1990-02-13 | Research Foundation Of State University Of New York | Method and apparatus for determining viscosity |
US5138886A (en) * | 1990-09-27 | 1992-08-18 | Tilley Sr Hilton R | Electronic manometer |
US5351036A (en) * | 1991-12-10 | 1994-09-27 | Clark-Reliance Corporation | Microwave-based point liquid level monitoring system |
DE19713785A1 (de) * | 1997-04-03 | 1998-10-08 | Velhagen Karl Heinz Prof Dr | Verfahren zur Bestimmung eines vorgegebenen Flüssigkeitspegels |
AU1106999A (en) * | 1997-10-22 | 1999-05-10 | Argonaut Technologies, Inc. | Systems and methods using an optical sensor for liquid metering |
US6687004B1 (en) | 1999-10-22 | 2004-02-03 | Marquette University | Optical sensor for opaque and non-opaque materials |
US6446734B1 (en) | 1999-11-11 | 2002-09-10 | Black & Decker Inc. | Motor/handle housing and gear case mounting for portable power tool |
GB2374152A (en) * | 2001-04-07 | 2002-10-09 | Halyard | Apparatus and method for detecting a change in fluid flow |
DE202007018337U1 (de) | 2006-06-21 | 2008-06-26 | Bundesanstalt für Materialforschung und -Prüfung (BAM) | Überwachungsgerät für ein Meßgerät |
US7788973B2 (en) * | 2007-01-19 | 2010-09-07 | Itt Manufacturing Enterprises, Inc. | Combined sight oil level gage and ultrasonic sensor |
US9366560B2 (en) * | 2013-08-01 | 2016-06-14 | John Cacciola | Detector for detecting a change in a fluid level and generating a digital signal |
US9402781B2 (en) * | 2014-06-05 | 2016-08-02 | Mercury Enterprises, Inc. | Manometer with cadence indicator |
US10098809B2 (en) | 2014-06-05 | 2018-10-16 | Mercury Enterprises, Inc. | Manometer with cadence indicator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2984148A (en) * | 1958-11-13 | 1961-05-16 | Honeywell Regulator Co | Measuring apparatus |
US3411005A (en) * | 1966-01-24 | 1968-11-12 | Automation Devices Inc | Compact infrared detector systems with regulated power supply |
US3454759A (en) * | 1966-04-22 | 1969-07-08 | Industrial Dynamics Co | Infrared liquid level inspection system for a container which may contain foam above the liquid |
US3636360A (en) * | 1968-05-13 | 1972-01-18 | Hitachi Ltd | Apparatus for detection of liquid level in transparent tube comprising photocell located to receive light which has been totally reflected |
-
1974
- 1974-04-08 US US458867A patent/US3908129A/en not_active Expired - Lifetime
-
1975
- 1975-04-04 AU AU79855/75A patent/AU7985575A/en not_active Expired
- 1975-04-04 FR FR7510648A patent/FR2266874A1/fr not_active Withdrawn
- 1975-04-07 IT IT22050/75A patent/IT1034879B/it active
- 1975-04-07 DE DE19752515116 patent/DE2515116A1/de active Pending
- 1975-04-08 BE BE155188A patent/BE827684A/fr unknown
- 1975-04-08 JP JP50041898A patent/JPS50137565A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU7985575A (en) | 1976-10-07 |
JPS50137565A (fr) | 1975-10-31 |
FR2266874A1 (fr) | 1975-10-31 |
DE2515116A1 (de) | 1975-10-16 |
IT1034879B (it) | 1979-10-10 |
US3908129A (en) | 1975-09-23 |
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