ES2107955A1 - Sensor termoelectrico de corriente eficaz verdadera. - Google Patents
Sensor termoelectrico de corriente eficaz verdadera.Info
- Publication number
- ES2107955A1 ES2107955A1 ES09500694A ES9500694A ES2107955A1 ES 2107955 A1 ES2107955 A1 ES 2107955A1 ES 09500694 A ES09500694 A ES 09500694A ES 9500694 A ES9500694 A ES 9500694A ES 2107955 A1 ES2107955 A1 ES 2107955A1
- Authority
- ES
- Spain
- Prior art keywords
- current
- comparison
- value
- effective value
- heaters
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/02—Arrangements for measuring electric power or power factor by thermal methods, e.g. calorimetric
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Control Of Transmission Device (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
SENSOR TERMOELECTRICO DE CORRIENTE EFICAZ VERDADERA. MIDE EL VALOR EFICAZ VERDADERO DE UNA CORRIENTE MEDIANTE LA COMPARACION DEL EFECTO TERMICO PRODUCIDO POR ESTA Y EL PRODUCIDO POR UNA CORRIENTE DE COMPARACION CONOCIDA, SOBRE DOS RESISTENCIAS CALEFACTORES, UNA DE MEDIDA (5) Y LA OTRA DE COMPARACION (6), MEDIANTE PARES TERMOELECTRICOS EN SERIE (1), DE FORMA QUE CADA PAR CONTIGUO ES CALENTADO POR EL FLUJO TERMICO PROCEDENTE DE CADA UNO DE LOS CALEFACTORES --EL DE MEDIDA (5) Y EL DE COMPARACION (6)-- GENERANDOSE UNA FUERZA ELECTROMOTRIZ QUE AMPLIFICADA Y TRATADA POR UN SUBSISTEMA ELECTRONICO, ESTABLECE UNA RETROALIMENTACION NEGATIVA QUE AJUSTA AUTOMATICAMENTE EL VALOR DE LA CORRIENTE DE COMPARACION QUE ANULA LA CITADA FUERZA ELECTROMOTRIZ, ESTABLECIENDOSE LA IGUALDAD ENTRE EL VALOR DE LA CORRIENTE DE COMPARACION --CONOCIDO-- Y EL VALOR EFICAZ DE LA CORRIENTE A MEDIR, PERMITIENDO LOS CALCULOS AUTOMATICOS DE CONSUMO ELECTRICO Y SU TRANSMISION MEDIANTE UNA INTERFACE PARA APLICACIONES TELEMATICAS.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9500694A ES2107955B1 (es) | 1995-04-07 | 1995-04-07 | Sensor termoelectrico de corriente eficaz verdadera. |
PCT/ES1996/000065 WO1996031784A1 (es) | 1995-04-07 | 1996-03-26 | Sensor termoelectrico de corriente eficaz verdadera |
EP96906777A EP0779516A1 (en) | 1995-04-07 | 1996-03-26 | Thermoelectric sensor intended to measure the true effective current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9500694A ES2107955B1 (es) | 1995-04-07 | 1995-04-07 | Sensor termoelectrico de corriente eficaz verdadera. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2107955A1 true ES2107955A1 (es) | 1997-12-01 |
ES2107955B1 ES2107955B1 (es) | 1998-07-01 |
Family
ID=8290031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9500694A Expired - Lifetime ES2107955B1 (es) | 1995-04-07 | 1995-04-07 | Sensor termoelectrico de corriente eficaz verdadera. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0779516A1 (es) |
ES (1) | ES2107955B1 (es) |
WO (1) | WO1996031784A1 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008057607B4 (de) | 2008-11-17 | 2022-01-13 | Rohde & Schwarz GmbH & Co. Kommanditgesellschaft | Thermoelektrische Leistungsmesszelle und entsprechendes Messverfahren |
US10066999B2 (en) | 2015-09-22 | 2018-09-04 | Elster Solutions, Llc | System and method for monitoring exceptional watt hour meter terminal temperature |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3486014A (en) * | 1966-04-21 | 1969-12-23 | Weston Instruments Inc | Power to dc converter |
US4045734A (en) * | 1976-05-24 | 1977-08-30 | Canadian Patents And Development Limited | Differential thermal wattmeter |
EP0446546A2 (fr) * | 1989-12-19 | 1991-09-18 | Universite Des Sciences Et Technologies De Lille | Procédé et dispositif utilisant les effets thermoélectriques pour la mesure d'une grandeur physique dont la variation est apte à modifier les propriétés thermophysiques d'un milieu |
US5315236A (en) * | 1991-03-05 | 1994-05-24 | Lee Graham S | Power consumption meter for displaying electric power consumed by appliance and the time period of consumption |
WO1994019899A1 (en) * | 1993-02-12 | 1994-09-01 | Ekstrom Industries, Inc. | Remote automatic meter reading apparatus |
EP0618452A1 (en) * | 1993-03-30 | 1994-10-05 | AT&T Corp. | An average power detector circuit |
-
1995
- 1995-04-07 ES ES9500694A patent/ES2107955B1/es not_active Expired - Lifetime
-
1996
- 1996-03-26 WO PCT/ES1996/000065 patent/WO1996031784A1/es not_active Application Discontinuation
- 1996-03-26 EP EP96906777A patent/EP0779516A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3486014A (en) * | 1966-04-21 | 1969-12-23 | Weston Instruments Inc | Power to dc converter |
US4045734A (en) * | 1976-05-24 | 1977-08-30 | Canadian Patents And Development Limited | Differential thermal wattmeter |
EP0446546A2 (fr) * | 1989-12-19 | 1991-09-18 | Universite Des Sciences Et Technologies De Lille | Procédé et dispositif utilisant les effets thermoélectriques pour la mesure d'une grandeur physique dont la variation est apte à modifier les propriétés thermophysiques d'un milieu |
US5315236A (en) * | 1991-03-05 | 1994-05-24 | Lee Graham S | Power consumption meter for displaying electric power consumed by appliance and the time period of consumption |
WO1994019899A1 (en) * | 1993-02-12 | 1994-09-01 | Ekstrom Industries, Inc. | Remote automatic meter reading apparatus |
EP0618452A1 (en) * | 1993-03-30 | 1994-10-05 | AT&T Corp. | An average power detector circuit |
Non-Patent Citations (1)
Title |
---|
CPEM'90 DIGEST, 11-14 de junio de 1990, Ottawa, CA, pßginas 320-321, XP000201159, K. TAKAHASHI y S. KUSUI: "A precision thermal wattmeter having a sampling control system and an analogue feedback loop" * Todo el documento * * |
Also Published As
Publication number | Publication date |
---|---|
WO1996031784A1 (es) | 1996-10-10 |
EP0779516A1 (en) | 1997-06-18 |
ES2107955B1 (es) | 1998-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19971201 Kind code of ref document: A1 Effective date: 19971201 |