ES8202956A1 - Perfeccionamientos en aparatos de comprobacion de frecuen- cias de senales electricas - Google Patents
Perfeccionamientos en aparatos de comprobacion de frecuen- cias de senales electricasInfo
- Publication number
- ES8202956A1 ES8202956A1 ES500172A ES500172A ES8202956A1 ES 8202956 A1 ES8202956 A1 ES 8202956A1 ES 500172 A ES500172 A ES 500172A ES 500172 A ES500172 A ES 500172A ES 8202956 A1 ES8202956 A1 ES 8202956A1
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- channel
- zero
- control function
- chopper
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
APARATO DE COMPROBACION DE LA FRECUENCIA DE SEÑALES ELECTRICAS TRANSPORTADAS POR UN CONDUCTOR. CONSTA DE UN PRIMER CANAL SENSOR DE FRECUENCIA (2) CUYA ENTRADA SE ACOPLA AL CONDUCTOR Y CUYA SALIDA ESTA DISPUESTA PARA OCUPAR UN PRIMER ESTADO, SI LA SEÑAL DEL CONDUCTOR TIENE LA FRECUENCIA PREDETERMINADA, Y UN SEGUNDO ESTADO, SI LA SEÑAL NO TIENE DICHA FRECUENCIA; DE UN CIRCUITO MAGNETICO SATURABLE (13) ACOPLADO DE FORMA INDUCTIVA AL CONDUCTOR Y CAPAZ DE PROPORCIONAR UN ACOPLAMIENTO INDUCTIVO ENTRE GENERADOR DE SEÑAL (11) Y UN SEGUNDO CANAL SENSOR (3), CUYA SALIDA ESTA DISPUESTA PARA OCUPAR UN PRIMER ESTADO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8007874 | 1980-03-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8202956A1 true ES8202956A1 (es) | 1982-02-16 |
ES500172A0 ES500172A0 (es) | 1982-02-16 |
Family
ID=10511949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES500172A Granted ES500172A0 (es) | 1980-03-07 | 1981-03-06 | Perfeccionamientos en aparatos de comprobacion de frecuen- cias de senales electricas |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0035846A3 (es) |
ES (1) | ES500172A0 (es) |
GB (1) | GB2071450B (es) |
MX (1) | MX149527A (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2215067B (en) * | 1988-02-19 | 1992-09-09 | Richard Carlile Marshall | Electromagnetic compatibility testing |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2318875C2 (de) * | 1973-04-11 | 1982-08-19 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Gewinnung von Auslösesignalen bei von einer Sollfrequenz abweichenden Frequenzen |
US3993984A (en) * | 1975-04-08 | 1976-11-23 | Power Management Corporation | Electronic underfrequency relay |
DE2854315A1 (de) * | 1978-12-15 | 1980-06-26 | German Ing Grad Grimm | Einrichtung zur bestimmung von die netzfrequenz beeinflussenden stoerungen in elektrischen energieversorgungsnetzen und verwendung einer derartigen einrichtung in einer adaptiven frequenzregelung fuer elektrische energieversorgungsnetze |
-
1981
- 1981-02-26 EP EP81300794A patent/EP0035846A3/en not_active Ceased
- 1981-03-02 GB GB8106439A patent/GB2071450B/en not_active Expired
- 1981-03-06 ES ES500172A patent/ES500172A0/es active Granted
- 1981-03-06 MX MX18626781A patent/MX149527A/es unknown
Also Published As
Publication number | Publication date |
---|---|
ES500172A0 (es) | 1982-02-16 |
EP0035846A3 (en) | 1982-01-27 |
MX149527A (es) | 1983-11-18 |
EP0035846A2 (en) | 1981-09-16 |
GB2071450B (en) | 1984-03-14 |
GB2071450A (en) | 1981-09-16 |
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