AT275657B - Circuit for multiplying two factors - especially current and voltage for real power measurement - Google Patents

Circuit for multiplying two factors - especially current and voltage for real power measurement

Info

Publication number
AT275657B
AT275657B AT957667A AT957667A AT275657B AT 275657 B AT275657 B AT 275657B AT 957667 A AT957667 A AT 957667A AT 957667 A AT957667 A AT 957667A AT 275657 B AT275657 B AT 275657B
Authority
AT
Austria
Prior art keywords
multiplying
factors
voltage
circuit
power measurement
Prior art date
Application number
AT957667A
Other languages
German (de)
Inventor
Werner Jose Dipl Ing Luethi
Original Assignee
Landis & Gyr 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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Application granted granted Critical
Publication of AT275657B publication Critical patent/AT275657B/en

Links

Classifications

    • 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
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1331—Measuring real or reactive component, measuring apparent energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Current Or Voltage (AREA)
AT957667A 1967-09-29 1967-10-23 Circuit for multiplying two factors - especially current and voltage for real power measurement AT275657B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1363567A CH457620A (en) 1967-09-29 1967-09-29 Method for multiplying two factors, in particular current and voltage for measuring active power, and circuit arrangement for performing the method

Publications (1)

Publication Number Publication Date
AT275657B true AT275657B (en) 1969-11-10

Family

ID=4394070

Family Applications (1)

Application Number Title Priority Date Filing Date
AT957667A AT275657B (en) 1967-09-29 1967-10-23 Circuit for multiplying two factors - especially current and voltage for real power measurement

Country Status (3)

Country Link
AT (1) AT275657B (en)
CH (1) CH457620A (en)
DE (1) DE1549630A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801874A (en) * 1987-02-27 1989-01-31 Process Systems, Inc. Method and apparatus for measuring electricity

Also Published As

Publication number Publication date
CH457620A (en) 1968-06-15
DE1549630A1 (en) 1971-02-04

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