FR2217678A1 - - Google Patents
Info
- Publication number
- FR2217678A1 FR2217678A1 FR7404562A FR7404562A FR2217678A1 FR 2217678 A1 FR2217678 A1 FR 2217678A1 FR 7404562 A FR7404562 A FR 7404562A FR 7404562 A FR7404562 A FR 7404562A FR 2217678 A1 FR2217678 A1 FR 2217678A1
- 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.)
- Granted
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
- G01F23/2962—Measuring transit time of reflected 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)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ink Jet (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7301902A SE371691B (fr) | 1973-02-12 | 1973-02-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2217678A1 true FR2217678A1 (fr) | 1974-09-06 |
FR2217678B1 FR2217678B1 (fr) | 1978-10-27 |
Family
ID=20316601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7404562A Expired FR2217678B1 (fr) | 1973-02-12 | 1974-02-11 |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5427149B2 (fr) |
DK (1) | DK138617B (fr) |
FR (1) | FR2217678B1 (fr) |
GB (1) | GB1411208A (fr) |
IT (1) | IT1008221B (fr) |
NO (1) | NO136861C (fr) |
SE (1) | SE371691B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2368332A1 (fr) * | 1976-10-25 | 1978-05-19 | Bryce Graham | Appareil de controle de la longueur de depassement d'une electrode fusible d'une torche de soudage a l'arc |
FR2402861A1 (fr) * | 1977-09-13 | 1979-04-06 | Marconi Co Ltd | Capteur du niveau d'un liquide |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6270055B2 (ja) * | 2014-12-26 | 2018-01-31 | 日本精機株式会社 | 液面検出装置 |
-
1973
- 1973-02-12 SE SE7301902A patent/SE371691B/xx unknown
-
1974
- 1974-02-05 GB GB797174A patent/GB1411208A/en not_active Expired
- 1974-02-11 NO NO740455A patent/NO136861C/no unknown
- 1974-02-11 FR FR7404562A patent/FR2217678B1/fr not_active Expired
- 1974-02-11 DK DK69674AA patent/DK138617B/da unknown
- 1974-02-11 IT IT48265/74A patent/IT1008221B/it active
- 1974-02-12 JP JP1708374A patent/JPS5427149B2/ja not_active Expired
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2368332A1 (fr) * | 1976-10-25 | 1978-05-19 | Bryce Graham | Appareil de controle de la longueur de depassement d'une electrode fusible d'une torche de soudage a l'arc |
FR2402861A1 (fr) * | 1977-09-13 | 1979-04-06 | Marconi Co Ltd | Capteur du niveau d'un liquide |
Also Published As
Publication number | Publication date |
---|---|
NO740455L (no) | 1974-08-13 |
NO136861C (no) | 1977-11-16 |
SE371691B (fr) | 1974-11-25 |
DE2405991A1 (de) | 1974-08-22 |
FR2217678B1 (fr) | 1978-10-27 |
JPS5041578A (fr) | 1975-04-16 |
NO136861B (no) | 1977-08-08 |
IT1008221B (it) | 1976-11-10 |
DK138617B (da) | 1978-10-02 |
DE2405991B2 (de) | 1976-06-10 |
DK138617C (fr) | 1979-03-12 |
JPS5427149B2 (fr) | 1979-09-07 |
GB1411208A (en) | 1975-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |