GB1537425A - Quarter-squares multipliers for measuring electrical energy - Google Patents

Quarter-squares multipliers for measuring electrical energy

Info

Publication number
GB1537425A
GB1537425A GB2399977A GB2399977A GB1537425A GB 1537425 A GB1537425 A GB 1537425A GB 2399977 A GB2399977 A GB 2399977A GB 2399977 A GB2399977 A GB 2399977A GB 1537425 A GB1537425 A GB 1537425A
Authority
GB
United Kingdom
Prior art keywords
circuit
current
quarter
squares
frequency
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
Application number
GB2399977A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr AG
Original Assignee
Landis and 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 and Gyr AG filed Critical Landis and Gyr AG
Publication of GB1537425A publication Critical patent/GB1537425A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/10—Arrangements for measuring electric power or power factor by using square-law characteristics of circuit elements, e.g. diodes, to measure power absorbed by loads of known impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
GB2399977A 1976-06-15 1977-06-08 Quarter-squares multipliers for measuring electrical energy Expired GB1537425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH763076A CH607037A5 (https=) 1976-06-15 1976-06-15

Publications (1)

Publication Number Publication Date
GB1537425A true GB1537425A (en) 1978-12-29

Family

ID=4328112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2399977A Expired GB1537425A (en) 1976-06-15 1977-06-08 Quarter-squares multipliers for measuring electrical energy

Country Status (7)

Country Link
JP (1) JPS52153779A (https=)
CH (1) CH607037A5 (https=)
DE (1) DE2710294C3 (https=)
FR (1) FR2355296A1 (https=)
GB (1) GB1537425A (https=)
NL (1) NL7706562A (https=)
YU (1) YU139177A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251356A3 (en) * 2001-04-09 2004-03-03 Eni Technology, Inc. Method and apparatus for determining the instantaneous power of a sinusoidal signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251356A3 (en) * 2001-04-09 2004-03-03 Eni Technology, Inc. Method and apparatus for determining the instantaneous power of a sinusoidal signal

Also Published As

Publication number Publication date
FR2355296B3 (https=) 1979-04-27
FR2355296A1 (fr) 1978-01-13
JPS52153779A (en) 1977-12-21
DE2710294A1 (de) 1977-12-22
JPS622271B2 (https=) 1987-01-19
DE2710294B2 (de) 1978-06-29
YU139177A (en) 1982-05-31
NL7706562A (nl) 1977-12-19
CH607037A5 (https=) 1978-11-30
DE2710294C3 (de) 1979-02-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee