GB2378768A - Digital meter for measuring alternating current - Google Patents

Digital meter for measuring alternating current

Info

Publication number
GB2378768A
GB2378768A GB0225361A GB0225361A GB2378768A GB 2378768 A GB2378768 A GB 2378768A GB 0225361 A GB0225361 A GB 0225361A GB 0225361 A GB0225361 A GB 0225361A GB 2378768 A GB2378768 A GB 2378768A
Authority
GB
United Kingdom
Prior art keywords
light
signal
alternating current
rotary disk
sensing element
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
Application number
GB0225361A
Other versions
GB2378768B (en
GB0225361D0 (en
Inventor
Chao Fou Hsu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB0225361D0 publication Critical patent/GB0225361D0/en
Publication of GB2378768A publication Critical patent/GB2378768A/en
Application granted granted Critical
Publication of GB2378768B publication Critical patent/GB2378768B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/16—Adaptations of counters to electricity meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/36—Induction meters, e.g. Ferraris meters
    • G01R11/38—Induction meters, e.g. Ferraris meters for single-phase operation
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A digital meter (10) is designed for measuring alternating current and is formed of a metal rotary disk (20), a light-emitting element (30), a light-sensing element (40), a signal wire (50), and a signal conversion display (60). The metal rotary disk (20) is provided with a through hole (21) located at an appropriate position thereof. The light-emitting element (30) and the light-sensing element (40) are corresponding in location to each other such that they are located on a rotational path of the through hole (21). As the metal rotary disk (20) completes one revolution, the light-sensing element (40) receives a light signal which is transmitted via the signal wire (50) into the signal conversion display (60) by which the signal is converted (62) into a numerical value of power consumption. The numerical value of power consumption by a power user is thus attained by a terminal located in the power company without the use of a meter-person.
GB0225361A 2000-05-05 2000-05-05 Digital meter for measuring alternating current Expired - Fee Related GB2378768B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/006696 WO2001086310A1 (en) 2000-05-05 2000-05-05 Digital meter for measuring alternating current

Publications (3)

Publication Number Publication Date
GB0225361D0 GB0225361D0 (en) 2002-12-11
GB2378768A true GB2378768A (en) 2003-02-19
GB2378768B GB2378768B (en) 2004-03-24

Family

ID=21741153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0225361A Expired - Fee Related GB2378768B (en) 2000-05-05 2000-05-05 Digital meter for measuring alternating current

Country Status (6)

Country Link
JP (1) JP2003532901A (en)
AU (1) AU2000249712A1 (en)
CA (1) CA2408056A1 (en)
DE (1) DE10085470T1 (en)
GB (1) GB2378768B (en)
WO (1) WO2001086310A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602703A (en) * 1969-10-20 1971-08-31 Ibm Power demand predicting control system
US4034292A (en) * 1976-02-18 1977-07-05 Westinghouse Electric Corporation Direction sensitive opto-electronic pulse initiator for electrical meters
US4301508A (en) * 1979-03-28 1981-11-17 Eaton Corp. Digital processing system for time-of-day and demand meter display
US4652855A (en) * 1984-12-05 1987-03-24 Westinghouse Electric Corp. Portable remote meter reading apparatus
US6026355A (en) * 1996-09-18 2000-02-15 Itron, Inc. Solid state watt-hour meter using GMR sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602703A (en) * 1969-10-20 1971-08-31 Ibm Power demand predicting control system
US4034292A (en) * 1976-02-18 1977-07-05 Westinghouse Electric Corporation Direction sensitive opto-electronic pulse initiator for electrical meters
US4301508A (en) * 1979-03-28 1981-11-17 Eaton Corp. Digital processing system for time-of-day and demand meter display
US4652855A (en) * 1984-12-05 1987-03-24 Westinghouse Electric Corp. Portable remote meter reading apparatus
US6026355A (en) * 1996-09-18 2000-02-15 Itron, Inc. Solid state watt-hour meter using GMR sensor

Also Published As

Publication number Publication date
AU2000249712A1 (en) 2001-11-20
DE10085470T1 (en) 2003-05-08
GB2378768B (en) 2004-03-24
JP2003532901A (en) 2003-11-05
WO2001086310A1 (en) 2001-11-15
CA2408056A1 (en) 2001-11-15
GB0225361D0 (en) 2002-12-11

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Legal Events

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

Effective date: 20080505