BE875376A - Montage pour le controle du carre d'une valeur efficace d'un signal periodique - Google Patents

Montage pour le controle du carre d'une valeur efficace d'un signal periodique

Info

Publication number
BE875376A
BE875376A BE0/194447A BE194447A BE875376A BE 875376 A BE875376 A BE 875376A BE 0/194447 A BE0/194447 A BE 0/194447A BE 194447 A BE194447 A BE 194447A BE 875376 A BE875376 A BE 875376A
Authority
BE
Belgium
Prior art keywords
assembly
effective value
periodic signal
square control
square
Prior art date
Application number
BE0/194447A
Other languages
English (en)
French (fr)
Original Assignee
Siemens Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of BE875376A publication Critical patent/BE875376A/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/02—Measuring effective values, i.e. root-mean-square values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G01R19/1658—AC voltage or recurrent signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Emergency Alarm Devices (AREA)
BE0/194447A 1978-04-07 1979-04-06 Montage pour le controle du carre d'une valeur efficace d'un signal periodique BE875376A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2815089A DE2815089C2 (de) 1978-04-07 1978-04-07 Schaltungsanordnung zur Überwachung des Quadrats eines Effektivwertes eines periodischen Signals

Publications (1)

Publication Number Publication Date
BE875376A true BE875376A (fr) 1979-07-31

Family

ID=6036410

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/194447A BE875376A (fr) 1978-04-07 1979-04-06 Montage pour le controle du carre d'une valeur efficace d'un signal periodique

Country Status (12)

Country Link
US (1) US4242638A (xx)
JP (1) JPS5554459A (xx)
AT (1) AT367212B (xx)
BE (1) BE875376A (xx)
CA (1) CA1143443A (xx)
DE (1) DE2815089C2 (xx)
FR (1) FR2422169A1 (xx)
GB (1) GB2018439B (xx)
IN (1) IN149605B (xx)
IT (1) IT1112048B (xx)
NL (1) NL7902716A (xx)
SE (1) SE430830B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2040052B (en) * 1978-12-09 1983-01-26 Racal Dana Instr Ltd Edectrical signal processing
US4642564A (en) * 1984-06-15 1987-02-10 Cooper Industries, Inc. Measuring circuit and method for power distribution equipment
US4835421A (en) * 1988-03-18 1989-05-30 American Telephone And Telegraph Company, At&T Bell Laboratories Squaring circuits in MOS integrated circuit technology
US7224130B2 (en) * 2005-02-04 2007-05-29 Osram Sylvania Inc. Method of operating a lamp containing a fixed phase power controller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314870A1 (de) * 1973-03-26 1974-10-10 Siemens Ag Anordnung zur digitalen oder analogen messung von effektivwerten oder leistungen
GB1425966A (en) * 1973-06-29 1976-02-25 Solartron Electronic Group True rms converter
JPS52150537A (en) * 1976-06-10 1977-12-14 Mitsubishi Electric Corp Step-out detector

Also Published As

Publication number Publication date
IT1112048B (it) 1986-01-13
IT7921531A0 (it) 1979-04-03
FR2422169A1 (fr) 1979-11-02
JPS5554459A (en) 1980-04-21
IN149605B (xx) 1982-02-13
DE2815089B1 (de) 1979-06-07
SE7903038L (sv) 1979-10-08
AT367212B (de) 1982-06-11
DE2815089C2 (de) 1980-01-24
GB2018439B (en) 1982-07-07
ATA253179A (de) 1981-10-15
CA1143443A (en) 1983-03-22
SE430830B (sv) 1983-12-12
GB2018439A (en) 1979-10-17
NL7902716A (nl) 1979-10-09
US4242638A (en) 1980-12-30

Similar Documents

Publication Publication Date Title
FR2345049A1 (fr) Montage d'excitation pour la commande d'une tete video mobile
BE854740A (fr) Commande microprogrammee des fonctions de commande d'un processeur etranger
IT1107168B (it) Perfezionamenti a dispositivi pr la selezione di un segnale
BE878750A (fr) Dispositif de reglage de la section de passage d'une soupape
FR2322470A1 (fr) Dispositif pour commander l'enroulement d'un cable
BE834389A (fr) Circuit de controle d'un parametre autour d'une valeur de reference
BE877691A (fr) Montage pour la production d'une tension continue de commande en fonction d'une tension alternative
FR2341125A1 (fr) Dispositif pour mesurer les dimensions d'une piece
BE837536A (fr) Dispositif pour l'accumulation de materiaux en bandes
BE875376A (fr) Montage pour le controle du carre d'une valeur efficace d'un signal periodique
RO75404A (ro) Circuit pentru controlul saturatiei unui tranzistor
FR2305735A1 (fr) Montage pour l'analyse en frequence d'un signal
RO75160A (ro) Dispozitiv pentru determinarea pozitiei elementelor unei instalatii de turnare continua
BE853599A (fr) Installation pour le reglage de la frequence sequentielle impulsionnelle d'un signal
FR2331008A1 (fr) Dispositif pour determiner la valeur d'un couple
FR2326030A1 (fr) Microscope electronique a balayage pour le controle de structures d'objets
FR2343934A1 (fr) Dispositif pour l'application d'un couple
FR2331028A1 (fr) Dispositif de controle de l'ecoulement d'un liquide
FR2440034B1 (fr) Procede pour suivre le trace d'une partie du pourtour d'une image
BE877690A (fr) Montage pour la production d'une tension continue de commande en fonction d'une tension alternative
FR2334246A1 (fr) Montage pour la surveillance du fonctionnement d'un circuit decodeur dynamique
BE832649A (fr) Installation pour l'amelioration de la combustion des chaudieres a mazout
FR2345738A1 (fr) Dispositif a emetteurs laser pour l'amelioration de la visee d'instruments de surveillance classiques
BE816630A (fr) Montage pour le reglage de phase d'un signal de rythme ou d'horloge
BE822607A (fr) Montage pour la transmission radioelectrique d'un signal de commande vers le trajet de commande d'une soupape a semi-conducteur commandee

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SIEMENS A.G.

Effective date: 19860430