FR2656688B1 - - Google Patents
Info
- Publication number
- FR2656688B1 FR2656688B1 FR8917425A FR8917425A FR2656688B1 FR 2656688 B1 FR2656688 B1 FR 2656688B1 FR 8917425 A FR8917425 A FR 8917425A FR 8917425 A FR8917425 A FR 8917425A FR 2656688 B1 FR2656688 B1 FR 2656688B1
- 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 - Fee Related
Links
Classifications
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- 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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/686—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
-
- 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)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Level Indicators Using A Float (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8917425A FR2656688A1 (fr) | 1989-12-29 | 1989-12-29 | Dispositif de mesure du niveau d'un liquide dans un reservoir par determination optique de la position d'un flotteur. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8917425A FR2656688A1 (fr) | 1989-12-29 | 1989-12-29 | Dispositif de mesure du niveau d'un liquide dans un reservoir par determination optique de la position d'un flotteur. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2656688A1 FR2656688A1 (fr) | 1991-07-05 |
| FR2656688B1 true FR2656688B1 (US07494231-20090224-C00006.png) | 1994-04-22 |
Family
ID=9389132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8917425A Granted FR2656688A1 (fr) | 1989-12-29 | 1989-12-29 | Dispositif de mesure du niveau d'un liquide dans un reservoir par determination optique de la position d'un flotteur. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2656688A1 (US07494231-20090224-C00006.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217669A1 (de) * | 1992-05-28 | 1993-04-01 | Daimler Benz Ag | Vorrichtung zur fuellstandsmessung einer fluessigkeit in einem fluessigkeitsbehaelter |
| WO1997042470A1 (en) * | 1995-03-28 | 1997-11-13 | Albrigtsen Aage | Level-measuring equipment for liquids |
| ES2135337B1 (es) * | 1997-08-07 | 2000-05-16 | Garcia Ramon Ferreiro | Sonda fotovoltaica de nivel. |
| US6872933B2 (en) * | 1998-07-15 | 2005-03-29 | Alvin R. Wirthlin | Optical transducer |
| DE10019223A1 (de) * | 2000-04-18 | 2001-10-31 | Pelikan Produktions Ag Egg | System zum Erfassen eines Flüssigkeitsstandes in einem Behälter |
| US6604408B2 (en) * | 2001-03-02 | 2003-08-12 | Matec Instrument Companies, Inc. | Device for use in determining characteristics of particles dispersed in a medium, and method therefor |
| US7062967B2 (en) * | 2003-07-08 | 2006-06-20 | Daimlerchrysler Corporation | Fuel level sensor |
| CN111928924A (zh) * | 2020-09-09 | 2020-11-13 | 郑州广众科技发展股份有限公司 | 一种油位监测装置以及监测方法 |
| CN113029294A (zh) * | 2021-02-26 | 2021-06-25 | 浙江金象科技有限公司 | 罐车液位测量系统 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1524761A (en) * | 1977-01-26 | 1978-09-13 | Ito Patent Ag | Method of and apparatus formonitoring the level of material in a storage container |
-
1989
- 1989-12-29 FR FR8917425A patent/FR2656688A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2656688A1 (fr) | 1991-07-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |