ES472802A1 - Aparato para detectar el nivel de liquido en un deposito - Google Patents
Aparato para detectar el nivel de liquido en un depositoInfo
- Publication number
- ES472802A1 ES472802A1 ES472802A ES472802A ES472802A1 ES 472802 A1 ES472802 A1 ES 472802A1 ES 472802 A ES472802 A ES 472802A ES 472802 A ES472802 A ES 472802A ES 472802 A1 ES472802 A1 ES 472802A1
- Authority
- ES
- Spain
- Prior art keywords
- liquid level
- probe
- ground
- level monitor
- dual liquid
- 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
- 230000009977 dual effect Effects 0.000 title 1
- 239000000523 sample Substances 0.000 abstract 3
- 238000012544 monitoring process 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
- G01F23/241—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 for discrete levels
- G01F23/243—Schematic arrangements of probes combined with measuring circuits
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Aparato para detectar el nivel del líquido en un depósito que contiene normalmente una cierta cantidad de un líquido que ha de ser distribuido, incluyendo dicho aparato: A. Una sonda de detección eléctrica, suspendida en el interior de dicho depósito; B. Un dispositivo que define un circuito eléctrico que atraviesa dicha sonda y el líquido contenido en dicho depósito hasta la masa; C. Un dispositivo para aplicar una corriente alterna a dicha sonda para establecer una circulación de corriente alterna en dicho circuito; y D. Un dispositivo que detecta la impedancia de dicho circuito y que funciona en respuesta a un cambio de dicha impedancia, producido por el nivel del líquido que cae por debajo de la extremidad inferior de dicha sonda, activando un dispositivo de señalización, que llama la atención hacia dicha reducción del nivel de líquido.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/827,297 US4165509A (en) | 1977-08-24 | 1977-08-24 | Dual liquid level monitor |
Publications (1)
Publication Number | Publication Date |
---|---|
ES472802A1 true ES472802A1 (es) | 1979-10-16 |
Family
ID=25248853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES472802A Expired ES472802A1 (es) | 1977-08-24 | 1978-08-23 | Aparato para detectar el nivel de liquido en un deposito |
Country Status (8)
Country | Link |
---|---|
US (1) | US4165509A (es) |
AU (1) | AU3832678A (es) |
CA (1) | CA1107374A (es) |
DE (1) | DE2836993A1 (es) |
ES (1) | ES472802A1 (es) |
FR (1) | FR2401406A1 (es) |
GB (1) | GB2003605A (es) |
IT (1) | IT1098112B (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380091A (en) * | 1978-11-13 | 1983-04-19 | Lively Olin A | Control circuitry for water level control of pools |
US4405033A (en) * | 1979-07-23 | 1983-09-20 | Texaco Inc. | Fail-safe methods for generating a pulse indicating the precise moment of firing of a gas exhausting gun |
US4427091A (en) | 1979-07-23 | 1984-01-24 | Texaco Inc. | Fail-safe circuit mechanism for generating a pulse indicating the precise moment of firing of a gas exhausting gun |
US4243116A (en) * | 1979-07-23 | 1981-01-06 | Texaco Inc. | Fail-safe mechanism for generating a pulse indicating the precise moment of firing of an air gun |
US4244385A (en) * | 1979-12-12 | 1981-01-13 | William Hotine | Fluent material level control system |
FR2552876B1 (fr) * | 1983-09-29 | 1985-10-25 | Commissariat Energie Atomique | Systeme thermique de mesure de niveau de liquide |
US4728941A (en) * | 1984-02-13 | 1988-03-01 | Emhart Industries, Inc. | Fluid detection system |
US4875497A (en) * | 1984-04-23 | 1989-10-24 | Worthington Ralph T | Capacitance liquid level sensing and touch control system |
US4763077A (en) * | 1986-10-20 | 1988-08-09 | Conax Florida Corporation | Sensor circuit responsive to different fluid conductivities |
US4782699A (en) * | 1986-11-17 | 1988-11-08 | General Motors Corporation | Pulsed fuel level indicating system |
US4952914A (en) * | 1989-10-13 | 1990-08-28 | General Motors Corporation | Washer fluid monitor |
US5438323A (en) * | 1993-06-14 | 1995-08-01 | Scully Signal Company | Fail safe fluid level detection circuit |
US9038405B2 (en) * | 2010-08-25 | 2015-05-26 | The Rectorseal Corporation | Solid state control system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH86951A (de) * | 1919-08-21 | 1920-10-16 | Aegir Elektrische Bordapparate | Elektrischer Fernmesser zur Anzeige wechselnder Flüssigkeitshöhen. |
FR551022A (fr) * | 1922-05-05 | 1923-03-26 | Dispositif pour observer à distance les hauteurs de liquides | |
FR1456100A (fr) * | 1965-09-10 | 1966-10-21 | Dba Sa | Indicateur de niveau |
US3694804A (en) * | 1969-06-11 | 1972-09-26 | Thomas Electronics Ltd | Coolant level detector for engine cooling system |
BE756799A (fr) * | 1969-09-29 | 1971-03-01 | Addressograph Multigraph | Dispositif de controle d'un niveau de liquide |
US3978463A (en) * | 1975-08-04 | 1976-08-31 | General Motors Corporation | Oscillator energized liquid level indicator |
-
1977
- 1977-08-24 US US05/827,297 patent/US4165509A/en not_active Expired - Lifetime
-
1978
- 1978-06-23 CA CA306,149A patent/CA1107374A/en not_active Expired
- 1978-07-25 AU AU38326/78A patent/AU3832678A/en active Pending
- 1978-08-22 FR FR7824346A patent/FR2401406A1/fr not_active Withdrawn
- 1978-08-23 ES ES472802A patent/ES472802A1/es not_active Expired
- 1978-08-23 GB GB7834271A patent/GB2003605A/en not_active Withdrawn
- 1978-08-23 IT IT26962/78A patent/IT1098112B/it active
- 1978-08-24 DE DE19782836993 patent/DE2836993A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IT1098112B (it) | 1985-09-07 |
GB2003605A (en) | 1979-03-14 |
DE2836993A1 (de) | 1979-03-08 |
CA1107374A (en) | 1981-08-18 |
AU3832678A (en) | 1980-01-31 |
FR2401406A1 (fr) | 1979-03-23 |
US4165509A (en) | 1979-08-21 |
IT7826962A0 (it) | 1978-08-23 |
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