FR2538545B1 - - Google Patents
Info
- Publication number
- FR2538545B1 FR2538545B1 FR8221799A FR8221799A FR2538545B1 FR 2538545 B1 FR2538545 B1 FR 2538545B1 FR 8221799 A FR8221799 A FR 8221799A FR 8221799 A FR8221799 A FR 8221799A FR 2538545 B1 FR2538545 B1 FR 2538545B1
- 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
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
- G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
- G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
- G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8221799A FR2538545A1 (fr) | 1982-12-27 | 1982-12-27 | Dispositif de mesure du niveau d'un liquide dans un reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8221799A FR2538545A1 (fr) | 1982-12-27 | 1982-12-27 | Dispositif de mesure du niveau d'un liquide dans un reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2538545A1 FR2538545A1 (fr) | 1984-06-29 |
| FR2538545B1 true FR2538545B1 (enExample) | 1985-04-19 |
Family
ID=9280521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8221799A Granted FR2538545A1 (fr) | 1982-12-27 | 1982-12-27 | Dispositif de mesure du niveau d'un liquide dans un reservoir |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2538545A1 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4014443A1 (de) * | 1990-05-05 | 1991-11-07 | Duepro Ag | Fluessigkeitssauger |
| SE9604514L (sv) * | 1996-12-06 | 1998-06-07 | Ultrac Ingf Ab | Detekteringsanordning för övervakning av utrymmen i kulvertar samt metod att utföra övervakningen |
| DE102008060032A1 (de) * | 2008-07-31 | 2010-02-04 | Sms Siemag Aktiengesellschaft | Gießspiegelmessung in einer Kokille durch ein faseroptisches Messverfahren |
| CN104948261A (zh) * | 2015-04-29 | 2015-09-30 | 宁波大叶园林设备有限公司 | 光导显示润滑油位的机油标尺及发动机点燃和润滑的方法 |
| GB2550149A (en) * | 2016-05-10 | 2017-11-15 | Linde Ag | A cylinder for pressurised liquefied gas and a method of calculating the liquid level |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB626576A (en) * | 1947-06-23 | 1949-07-18 | Lucas Ltd Joseph | Improvements relating to liquid level indicators |
| US3466928A (en) * | 1967-09-15 | 1969-09-16 | Gen Motors Corp | Fiber optic liquid level indicator |
| FR2112135B3 (enExample) * | 1970-11-06 | 1973-08-10 | Accumulateurs Fixes |
-
1982
- 1982-12-27 FR FR8221799A patent/FR2538545A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2538545A1 (fr) | 1984-06-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |