ES8101271A1 - Perfeccionamientos en los sistemas de medicion de un nivel de liquido - Google Patents
Perfeccionamientos en los sistemas de medicion de un nivel de liquidoInfo
- Publication number
- ES8101271A1 ES8101271A1 ES491496A ES491496A ES8101271A1 ES 8101271 A1 ES8101271 A1 ES 8101271A1 ES 491496 A ES491496 A ES 491496A ES 491496 A ES491496 A ES 491496A ES 8101271 A1 ES8101271 A1 ES 8101271A1
- Authority
- ES
- Spain
- Prior art keywords
- comparator
- liquid
- measuring
- circuit
- liquid level
- Prior art date
- 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
- 239000007788 liquid Substances 0.000 title abstract 4
- 238000001514 detection method Methods 0.000 abstract 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
- G01F23/24—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 resistance of resistors due to contact with conductor fluid
- G01F23/246—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 resistance of resistors due to contact with conductor fluid thermal devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
Abstract
SISTEMA DE MEDICION DEL NIVEL DE UN LIQUIDO MEDIANTE UNA SONDA DE ALTO COEFICIENTE DE TEMPERATURA. COMPRENDE UNA SONDA, DE GRAN COEFICIENTE DE TEMPERATURA, QUE SE SUMERGE EN UN LIQUIDO CUYO NIVEL SE DESEA MEDIR Y UN CIRCUITO DE DETECCION CONECTADO A LA SONDA, A LA QUE SUMINSTRA UNA TENSION REPRESENTATIVA DEL NIVEL DE LIQUIDO. SE DISPONE TAMBIEN UN CIRCUITO DE MEMORIA AL CUAL ES APLICADA LA CITADA TENSION; UN CIRCUITO DE GENERACION DE SEÑALES EN DIENTES DE SIERRA QUE ES APLICADA A LA BASE DE UN CIRCUITO DARLINGTON Y CUYA SALIDA MANDA UN GALVANOMETRO DE REPRESENTACION. LA CONEXION AL CIRCUITO DARLINGTON SE REALIZA A TRAVES DE UN COMPARADOR, AL CUAL ES APLICADA TAMBIEN LA SEÑAL DE SALIDA DEL CIRCUITO DE MEMORIA. APLICADO EN LA MEDICION DEL NIVEL DE ACEITE EN EL CARTER MOTOR DE UN VEHICULO AUTOMOVIL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7912908A FR2457480A1 (fr) | 1979-05-21 | 1979-05-21 | Dispositif de mesure d'un niveau de liquide |
Publications (2)
Publication Number | Publication Date |
---|---|
ES491496A0 ES491496A0 (es) | 1980-12-16 |
ES8101271A1 true ES8101271A1 (es) | 1980-12-16 |
Family
ID=9225696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES491496A Expired ES8101271A1 (es) | 1979-05-21 | 1980-05-14 | Perfeccionamientos en los sistemas de medicion de un nivel de liquido |
Country Status (5)
Country | Link |
---|---|
US (1) | US4356728A (es) |
EP (1) | EP0019540B1 (es) |
DE (1) | DE3061258D1 (es) |
ES (1) | ES8101271A1 (es) |
FR (1) | FR2457480A1 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1169947A (en) * | 1981-08-20 | 1984-06-26 | Howard R. Braun | Liquid nitrogen level controller |
FR2514134A2 (fr) * | 1981-10-07 | 1983-04-08 | Jaeger | Perfectionnements aux dispositifs de controle de niveau du liquide contenu dans un reservoir |
FR2514497A1 (fr) * | 1981-10-08 | 1983-04-15 | Jaeger | Dispositif de detection numerique de niveau par fil chaud |
FR2522065B1 (fr) * | 1982-02-19 | 1985-09-06 | Jaeger | Dispositif d'affichage systematique du niveau d'huile pour vehicule |
US4466747A (en) * | 1982-10-12 | 1984-08-21 | The United States Of America As Represented By The United States Department Of Energy | Ash level meter for a fixed-bed coal gasifier |
DE3408824A1 (de) * | 1984-03-10 | 1985-09-12 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Schaltungsanordnung zur elektrothermischen, umgebungstemperatur-kompensierten fuellstandsmessung |
US5117216A (en) * | 1986-04-23 | 1992-05-26 | Fluid Components, Inc. | Distributed RTD |
US5167153A (en) * | 1986-04-23 | 1992-12-01 | Fluid Components, Inc. | Method of measuring physical phenomena using a distributed RTD |
US4785665A (en) * | 1987-01-16 | 1988-11-22 | Mcculloch Reg W | Measuring instrument that senses heat transfer along a probe |
US4994780A (en) * | 1988-05-02 | 1991-02-19 | Fluid Components, Inc. | Heated extended resistance temperature sensor, apparatus for sensing and method of making same |
US5201223A (en) * | 1988-05-02 | 1993-04-13 | Fluid Components, Inc. | Method of sensing fluid flow and level employing a heated extended resistance temperature sensor |
US5152049A (en) * | 1988-05-02 | 1992-10-06 | Fluid Components, Inc. | Method of making a heated extended resistance temperature sensor |
US5134772A (en) * | 1988-05-02 | 1992-08-04 | Fluid Components, Inc. | Method of making a U-shaped heated extended resistance temperature sensor |
US5111692A (en) * | 1990-03-27 | 1992-05-12 | Fluid Components, Inc. | Temperature compensated liquid level and fluid flow sensor |
US5438866A (en) * | 1990-06-25 | 1995-08-08 | Fluid Components, Inc. | Method of making average mass flow velocity measurements employing a heated extended resistance temperature sensor |
FR2666653B1 (fr) * | 1990-09-11 | 1993-08-13 | Marelli Autronica Sa | Circuit electronique de mesure comportant des moyens d'alimentation electrique controlee d'une sonde resistive. |
US5137370A (en) * | 1991-03-25 | 1992-08-11 | Delta M Corporation | Thermoresistive sensor system |
CN107402053B (zh) * | 2017-08-07 | 2020-10-27 | 上海信通机电工程有限公司 | 二线制接触式电子料位仪 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299369A (en) * | 1964-07-22 | 1967-01-17 | Westinghouse Electric Corp | Condition responsive on-off blocking oscillator |
GB1450895A (en) * | 1972-11-17 | 1976-09-29 | Lucas Electrical Ltd | Liquid level detection systems |
FR2367276A1 (fr) * | 1976-10-06 | 1978-05-05 | Jaeger | Dispositif permettant le controle du niveau de liquide contenu dans un reservoir |
DE2753871C2 (de) * | 1976-12-03 | 1982-02-25 | Tokyo Shibaura Electric Co., Ltd., Kawasaki, Kanagawa | Elektronische Temperaturmeßschaltung |
NO147929C (no) * | 1976-12-20 | 1983-07-06 | Bronson M Potter | Deteksjonssystem for oljeforurensning. |
DE2751277C2 (de) * | 1977-11-16 | 1980-01-03 | Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart | Schaltungsanordnung zum Steuern einer Wäschetrockner-Programmschalteinrichtung |
US4253064A (en) * | 1978-06-02 | 1981-02-24 | Texas Instruments Incorporated | Liquid level sensing system |
US4187723A (en) * | 1978-10-16 | 1980-02-12 | The United States Of America As Represented By The Secretary Of The Army | Liquid nitrogen level indicator |
US4291280A (en) * | 1978-11-15 | 1981-09-22 | Sybron Corporation | AC Generator system having stabilized sensitivity for sensing the presence or absence of a conductive object |
-
1979
- 1979-05-21 FR FR7912908A patent/FR2457480A1/fr active Granted
-
1980
- 1980-05-12 EP EP80400656A patent/EP0019540B1/fr not_active Expired
- 1980-05-12 DE DE8080400656T patent/DE3061258D1/de not_active Expired
- 1980-05-14 ES ES491496A patent/ES8101271A1/es not_active Expired
- 1980-05-15 US US06/149,170 patent/US4356728A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2457480A1 (fr) | 1980-12-19 |
ES491496A0 (es) | 1980-12-16 |
EP0019540A1 (fr) | 1980-11-26 |
US4356728A (en) | 1982-11-02 |
EP0019540B1 (fr) | 1982-12-08 |
FR2457480B1 (es) | 1981-07-03 |
DE3061258D1 (en) | 1983-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970519 |