FR2234555B1 - - Google Patents
Info
- Publication number
- FR2234555B1 FR2234555B1 FR7421881A FR7421881A FR2234555B1 FR 2234555 B1 FR2234555 B1 FR 2234555B1 FR 7421881 A FR7421881 A FR 7421881A FR 7421881 A FR7421881 A FR 7421881A FR 2234555 B1 FR2234555 B1 FR 2234555B1
- 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
- G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US373363A US3916689A (en) | 1973-06-25 | 1973-06-25 | Capacitance fuel tank gauge |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2234555A1 FR2234555A1 (fr) | 1975-01-17 |
FR2234555B1 true FR2234555B1 (fr) | 1976-10-22 |
Family
ID=23472102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7421881A Expired FR2234555B1 (fr) | 1973-06-25 | 1974-06-24 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3916689A (fr) |
CA (1) | CA1025081A (fr) |
DE (1) | DE2430186A1 (fr) |
FR (1) | FR2234555B1 (fr) |
GB (1) | GB1479752A (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020691A (en) * | 1974-01-10 | 1977-05-03 | Simmonds Precision Products, Inc. | D.C. signal currents in capacitance gaging systems |
US4038871A (en) * | 1975-11-06 | 1977-08-02 | Liquidometer Corporation | Liquid level gauge |
DE2603185C2 (de) * | 1976-01-28 | 1986-05-28 | Otto Mitlödi Treier | Anordnung zur kapazitiven Messung des Füllstandes eines Behälters |
US4149412A (en) * | 1978-06-16 | 1979-04-17 | Fish Bobby L | Level measuring apparatus |
US4259865A (en) * | 1978-10-12 | 1981-04-07 | Smiths Industries Limited | Fluid-gauging systems |
US4176553A (en) * | 1978-12-21 | 1979-12-04 | Ford Motor Company | Liquid level measuring system |
US4194395A (en) * | 1978-12-21 | 1980-03-25 | Ford Motor Company | Capacitive liquid level sensor |
US4281542A (en) * | 1979-12-27 | 1981-08-04 | Simmonds Precision Products, Inc. | Shielding system for capacitance type fuel quantity gauge |
US4542336A (en) * | 1983-05-11 | 1985-09-17 | Simmonds Precision Products, Inc. | Method and apparatus for sampling broad band spectra in fuel quantity measurement systems |
US4706203A (en) * | 1984-12-17 | 1987-11-10 | Simmonds Precision Products, Inc. | Capacitive gauging method and apparatus |
US4748852A (en) * | 1986-10-10 | 1988-06-07 | Rosemount Inc. | Transmitter with an improved span adjustment |
FR2605731A1 (fr) * | 1986-10-27 | 1988-04-29 | Renault | Procede de mesure du niveau d'un liquide dans un reservoir et dispositif pour sa mise en oeuvre |
US5566572A (en) * | 1994-05-11 | 1996-10-22 | United Technologies Corporation | Circuitry to minimize stray capacitance effects in a capacitive liquid level measurement device |
EP0933618A1 (fr) * | 1998-01-30 | 1999-08-04 | Magneti Marelli France | Dispositif de mesure capacitif |
EP1083412A1 (fr) * | 1999-09-07 | 2001-03-14 | Endress + Hauser Gmbh + Co. | Dispositif pour la détermination d'une grandeur physique d'un produit fluide ou solide |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296553A (en) * | 1965-04-23 | 1967-01-03 | Sprague Electric Co | Amplitude limited frequency stabilized oscillator circuit |
US3375716A (en) * | 1965-10-12 | 1968-04-02 | Simmonds Precision Products | Fluid quantity measuring device |
NL6606653A (fr) * | 1966-05-14 | 1967-11-15 | ||
GB1132192A (en) * | 1967-04-04 | 1968-10-30 | Bruno Grieshaber | Apparatus for measuring the level of a fluid material |
US3533286A (en) * | 1969-01-28 | 1970-10-13 | Trans Sonics Inc | Tank quantity gage |
US3543046A (en) * | 1969-04-14 | 1970-11-24 | Fisher Governor Co | Capacitance-measuring techniques |
JPS5015543B1 (fr) * | 1970-06-03 | 1975-06-05 | ||
US3728897A (en) * | 1970-11-16 | 1973-04-24 | Cons Airborne Systems | Compensated fuel gage |
-
1973
- 1973-06-25 US US373363A patent/US3916689A/en not_active Expired - Lifetime
-
1974
- 1974-06-20 GB GB27309/74A patent/GB1479752A/en not_active Expired
- 1974-06-24 FR FR7421881A patent/FR2234555B1/fr not_active Expired
- 1974-06-24 DE DE2430186A patent/DE2430186A1/de active Pending
- 1974-06-25 CA CA203,359A patent/CA1025081A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2234555A1 (fr) | 1975-01-17 |
CA1025081A (fr) | 1978-01-24 |
DE2430186A1 (de) | 1975-01-16 |
GB1479752A (en) | 1977-07-13 |
US3916689A (en) | 1975-11-04 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |