FR2420741A1 - Appareil indicateur electrique a alimentation propre pour la mesure d'un niveau de liquide ou analogue - Google Patents
Appareil indicateur electrique a alimentation propre pour la mesure d'un niveau de liquide ou analogueInfo
- Publication number
- FR2420741A1 FR2420741A1 FR7906844A FR7906844A FR2420741A1 FR 2420741 A1 FR2420741 A1 FR 2420741A1 FR 7906844 A FR7906844 A FR 7906844A FR 7906844 A FR7906844 A FR 7906844A FR 2420741 A1 FR2420741 A1 FR 2420741A1
- Authority
- FR
- France
- Prior art keywords
- measuring
- level
- similar
- power supply
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title abstract 2
- 239000000835 fiber Substances 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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/70—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S136/00—Batteries: thermoelectric and photoelectric
- Y10S136/291—Applications
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Level Indicators Using A Float (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Crushing And Grinding (AREA)
- Adjustment And Processing Of Grains (AREA)
Abstract
Compteur électrique étanche de mesure d'une grandeur électrique telle que résistance, est fonction du niveau d'un liquide, et affichage de ce niveau. Le compteur présente une fenêtre exposant un ensemble de piles solaires 30, 30' à la lumière extérieure, et dont la tension de sortie, maintenue à niveau constant, alimente le circuit de mesure. Des faisceaux de fibres optiques 47, 47', 47" exposés dans ladite fenêtre transmettent de la lumière au cadran du compteur, de sorte que, de nuit, il suffit d'une lampe portative pour exciter les piles solaires et éclairer le cadran. Applicable à l'affichage du niveau dans une soute de pétrolier, etc.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/888,467 US4164145A (en) | 1978-03-20 | 1978-03-20 | Self-powered electrical meter for display of a liquid-level or the like measurement |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2420741A1 true FR2420741A1 (fr) | 1979-10-19 |
FR2420741B1 FR2420741B1 (fr) | 1985-11-22 |
Family
ID=25393221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7906844A Expired FR2420741B1 (fr) | 1978-03-20 | 1979-03-19 | Appareil indicateur electrique a alimentation propre pour la mesure d'un niveau de liquide ou analogue |
Country Status (6)
Country | Link |
---|---|
US (1) | US4164145A (fr) |
DE (1) | DE2909389A1 (fr) |
FR (1) | FR2420741B1 (fr) |
GB (1) | GB2017320B (fr) |
NO (1) | NO148574C (fr) |
SE (1) | SE7902409L (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4831878A (en) * | 1986-05-01 | 1989-05-23 | Toyoda Gosei Co., Ltd. | Structure for mounting liquid level meter |
EP0262430A1 (fr) * | 1986-09-29 | 1988-04-06 | BBC Brown Boveri AG | Dispositif à transformateur de courant pour installations de haute tension en plein air |
GB2234122A (en) * | 1989-06-10 | 1991-01-23 | Anderson Strathclyde Plc | Photovoltaically powered apparatus for condition monitoring; liquid level monitoring |
US5563456A (en) * | 1992-02-06 | 1996-10-08 | Murphy Management Inc. | Solar powered annunciator |
US5438225A (en) * | 1992-02-06 | 1995-08-01 | Murphy Management Inc. | Solar powered annuciator |
DE19728763B4 (de) * | 1997-07-07 | 2007-10-31 | Reitter & Schefenacker Gmbh & Co. Kg | Schaltungseinrichtung zum Schutz von strombetriebenen Leuchtmitteln, insbesondere von LEDs, zu Signal- oder Beleuchtungszwecken |
DE102006032250B4 (de) * | 2006-07-12 | 2008-08-14 | Vega Grieshaber Kg | Sensoren mit integrierter Solarenergieerzeugung |
US7651239B2 (en) * | 2006-09-19 | 2010-01-26 | Eveready Battery Co., Inc. | Intrinsically safe flashlight |
US7550943B2 (en) * | 2006-09-19 | 2009-06-23 | Eveready Battery Company, Inc. | Intrinsically safe battery-powered device |
US8227692B2 (en) * | 2009-04-13 | 2012-07-24 | Precision Digital Corporation | Explosion-proof enclosure |
US9357749B2 (en) | 2010-01-29 | 2016-06-07 | Gea Houle Inc. | Rotary milking station, kit for assembling the same, and methods of assembling and operating associated thereto |
US9593977B2 (en) * | 2015-01-30 | 2017-03-14 | King Fahd University Of Petroleum And Minerals | Water tank notifier |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1196303A (fr) * | 1957-05-25 | 1959-11-23 | Indicateur de niveau de carburant | |
FR2027132A1 (en) * | 1968-12-26 | 1970-09-25 | Israel Of State Atomic | Electric unit for liquid level indication |
DE2354250A1 (de) * | 1973-10-30 | 1975-05-22 | Gerhard Berger Fabrikation Ele | Elektrische messinstrumente, insbesondere weicheisen- strom- oder spannungsmesser, fuer explosionsgefaehrdete betriebsraeume |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7729771U1 (fr) * | 1900-01-01 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | ||
US2214595A (en) * | 1937-09-03 | 1940-09-10 | Westinghouse Electric & Mfg Co | Illuminated dial instrument |
US2919353A (en) * | 1956-02-03 | 1959-12-29 | Hoffman Electronics Corp | Solar powered portable radio receiver or the like |
DE1466640B2 (de) * | 1965-09-02 | 1970-05-21 | Brown, Boveri & Cie. AG, 68OO Mannheim-Käfertal | Elektrisches Vielfachmeßgerät |
US3433940A (en) * | 1967-06-07 | 1969-03-18 | Stewart Warner Corp | Fiber optics instrument lighting |
US3630015A (en) * | 1970-01-20 | 1971-12-28 | Kurt Lehovec | Light transformation device |
US3678750A (en) * | 1970-08-13 | 1972-07-25 | Universal Oil Prod Co | Liquid level indicator system |
US3757511A (en) * | 1971-05-17 | 1973-09-11 | Motorola Inc | Light emitting diode display for electronic timepiece |
FR2192705A5 (fr) * | 1972-07-17 | 1974-02-08 | Meci Materiel Elect Contr | |
US4017725A (en) * | 1975-01-03 | 1977-04-12 | Litton Business Systems, Inc. | Solar powered portable calculator |
DE2514698A1 (de) * | 1975-04-04 | 1976-10-14 | Weigand Messtech | Beleuchtetes zeigermessinstrument |
DE2634062A1 (de) * | 1976-07-29 | 1978-02-02 | Vdo Schindling | Anzeigeinstrument |
-
1978
- 1978-03-20 US US05/888,467 patent/US4164145A/en not_active Expired - Lifetime
-
1979
- 1979-03-09 DE DE19792909389 patent/DE2909389A1/de active Granted
- 1979-03-13 GB GB7908754A patent/GB2017320B/en not_active Expired
- 1979-03-19 NO NO790927A patent/NO148574C/no unknown
- 1979-03-19 SE SE7902409A patent/SE7902409L/xx not_active Application Discontinuation
- 1979-03-19 FR FR7906844A patent/FR2420741B1/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1196303A (fr) * | 1957-05-25 | 1959-11-23 | Indicateur de niveau de carburant | |
FR2027132A1 (en) * | 1968-12-26 | 1970-09-25 | Israel Of State Atomic | Electric unit for liquid level indication |
DE2354250A1 (de) * | 1973-10-30 | 1975-05-22 | Gerhard Berger Fabrikation Ele | Elektrische messinstrumente, insbesondere weicheisen- strom- oder spannungsmesser, fuer explosionsgefaehrdete betriebsraeume |
Non-Patent Citations (1)
Title |
---|
ELECTRONICS, volume 49, no. 23, 11 novembre 1976, L. CURRAN "Companies look for ways to raise solar-cell output", pages 91-99 * |
Also Published As
Publication number | Publication date |
---|---|
NO790927L (no) | 1979-09-21 |
SE7902409L (sv) | 1979-09-21 |
NO148574C (no) | 1983-11-09 |
FR2420741B1 (fr) | 1985-11-22 |
US4164145A (en) | 1979-08-14 |
DE2909389A1 (de) | 1979-10-04 |
GB2017320B (en) | 1982-06-03 |
GB2017320A (en) | 1979-10-03 |
NO148574B (no) | 1983-07-25 |
DE2909389C2 (fr) | 1990-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |