NO743133L - - Google Patents
Info
- Publication number
- NO743133L NO743133L NO743133A NO743133A NO743133L NO 743133 L NO743133 L NO 743133L NO 743133 A NO743133 A NO 743133A NO 743133 A NO743133 A NO 743133A NO 743133 L NO743133 L NO 743133L
- Authority
- NO
- Norway
- Prior art keywords
- current
- voltage
- switch
- consumer
- load
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
-
- 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)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2348667A DE2348667B2 (de) | 1973-09-27 | 1973-09-27 | Elektronischer kWh-Zähler |
Publications (1)
Publication Number | Publication Date |
---|---|
NO743133L true NO743133L (de) | 1975-04-28 |
Family
ID=5893855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO743133A NO743133L (de) | 1973-09-27 | 1974-09-02 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3953795A (de) |
JP (1) | JPS547585B2 (de) |
AT (1) | AT353887B (de) |
DE (1) | DE2348667B2 (de) |
DK (1) | DK466874A (de) |
FR (1) | FR2245952B1 (de) |
IT (1) | IT1022330B (de) |
NL (1) | NL7411874A (de) |
NO (1) | NO743133L (de) |
SE (1) | SE7412054L (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH583909A5 (de) * | 1975-04-11 | 1977-01-14 | Landis & Gyr Ag | |
US4027241A (en) * | 1976-05-19 | 1977-05-31 | Westinghouse Electric Corporation | Solid state watt and var transducer |
US4080568A (en) * | 1976-06-14 | 1978-03-21 | Roy B. Fitch, Jr. | Energy monitoring device |
JPS5360675A (en) * | 1976-11-12 | 1978-05-31 | Yokogawa Hokushin Electric Corp | Converter for power and dc signal |
US4092592A (en) * | 1977-01-07 | 1978-05-30 | General Electric Company | Electronic kWh meter having virtual ground isolation |
DE2715321A1 (de) * | 1977-04-05 | 1978-10-12 | Siemens Ag | Nach dem impulsbreiten-impulshoehen- modulationsverfahren arbeitender elektronischer drehstromzaehler |
DE2715283C2 (de) * | 1977-04-05 | 1983-05-11 | Siemens AG, 1000 Berlin und 8000 München | Elektronischer Drehstromzähler |
NL183424B (nl) * | 1977-05-16 | Enertec | Elektronische energiemeter. | |
US4096436A (en) * | 1977-05-23 | 1978-06-20 | The Valeron Corporation | Power monitor |
DE2747385C2 (de) * | 1977-10-21 | 1983-12-29 | Siemens AG, 1000 Berlin und 8000 München | Elektronischer Wechselstromzähler |
DE2747575C3 (de) * | 1977-10-24 | 1981-11-26 | SIEMENS AG AAAAA, 1000 Berlin und 8000 München | Drehstrom-Wirkleistungs-, bzw.Drehstrom-Blindleistungsrelais für den Betrieb bei symmetrischer Belastung in einem Dreileiternetz |
US4147978A (en) * | 1977-12-19 | 1979-04-03 | Dupont Energy Management Corporation | System for monitoring electrical energy consumption |
CH621631A5 (de) * | 1977-12-29 | 1981-02-13 | Landis & Gyr Ag | |
JPS581388B2 (ja) * | 1978-07-06 | 1983-01-11 | 株式会社東芝 | 電力量計 |
DE2938238A1 (de) * | 1979-09-21 | 1981-04-09 | Siemens AG, 1000 Berlin und 8000 München | Elektronischer drehstrom-elektrizitaetszaehler fuer das kondensatorumladungsverfahren |
JPS571972A (en) * | 1980-06-04 | 1982-01-07 | Toshiba Corp | Electronic type electric energy meter |
US4814996A (en) * | 1982-06-10 | 1989-03-21 | Futures Technology, Ltd. | Portable energy cost calculation |
US4630218A (en) * | 1983-04-22 | 1986-12-16 | Cooper Industries, Inc. | Current measuring apparatus |
NL8420205A (nl) * | 1983-08-01 | 1985-06-03 | Robinton Prod Inc | Vermogensmeetstelsel en werkwijze. |
US4709375A (en) * | 1983-09-27 | 1987-11-24 | Robinton Products, Inc. | Digital phase selection system for signal multipliers |
US4801874A (en) * | 1987-02-27 | 1989-01-31 | Process Systems, Inc. | Method and apparatus for measuring electricity |
JPH0821049B2 (ja) * | 1987-09-24 | 1996-03-04 | 株式会社東芝 | 乗算器 |
US5862069A (en) * | 1996-07-12 | 1999-01-19 | Analog Devices, Inc. | Four quadrant multiplying apparatus and method |
US6307493B1 (en) | 1999-05-28 | 2001-10-23 | Analog Devices, Inc. | Non-linear function generating circuit and method |
US7248628B2 (en) * | 2001-03-02 | 2007-07-24 | Shaeffer Derek K | Method and apparatus for a programmable filter |
US7285964B1 (en) * | 2005-06-03 | 2007-10-23 | Sensor Platforms, Inc. | Method for signal extraction in a universal sensor IC |
US8223121B2 (en) | 2008-10-20 | 2012-07-17 | Sensor Platforms, Inc. | Host system and method for determining an attitude of a device undergoing dynamic acceleration |
US9459276B2 (en) | 2012-01-06 | 2016-10-04 | Sensor Platforms, Inc. | System and method for device self-calibration |
US9316513B2 (en) | 2012-01-08 | 2016-04-19 | Sensor Platforms, Inc. | System and method for calibrating sensors for different operating environments |
US9228842B2 (en) | 2012-03-25 | 2016-01-05 | Sensor Platforms, Inc. | System and method for determining a uniform external magnetic field |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1224162A (en) * | 1967-01-10 | 1971-03-03 | English Electric Co Ltd | Improvements in power meters |
US3818340A (en) * | 1971-03-26 | 1974-06-18 | Yokogawa Electric Works Ltd | Electronic watt-hour meter with digital output representing time-integrated input |
US3760273A (en) * | 1971-06-24 | 1973-09-18 | Mc Culloch Corp | Electronic watt hour meter |
US3746851A (en) * | 1971-12-21 | 1973-07-17 | Technical Management Services | Multiplier, divider and wattmeter using a switching circuit and a pulse-width and frequency modulator |
-
1973
- 1973-09-27 DE DE2348667A patent/DE2348667B2/de not_active Ceased
-
1974
- 1974-09-02 NO NO743133A patent/NO743133L/no unknown
- 1974-09-04 DK DK466874A patent/DK466874A/da unknown
- 1974-09-06 AT AT719674A patent/AT353887B/de not_active IP Right Cessation
- 1974-09-06 NL NL7411874A patent/NL7411874A/xx unknown
- 1974-09-13 FR FR7430981A patent/FR2245952B1/fr not_active Expired
- 1974-09-25 SE SE7412054A patent/SE7412054L/ not_active Application Discontinuation
- 1974-09-25 JP JP11037774A patent/JPS547585B2/ja not_active Expired
- 1974-09-26 IT IT27727/74A patent/IT1022330B/it active
- 1974-09-26 US US05/509,681 patent/US3953795A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DK466874A (de) | 1975-05-12 |
NL7411874A (nl) | 1975-04-02 |
AT353887B (de) | 1979-12-10 |
JPS547585B2 (de) | 1979-04-07 |
US3953795A (en) | 1976-04-27 |
SE7412054L (sv) | 1975-03-28 |
FR2245952A1 (de) | 1975-04-25 |
JPS5062076A (de) | 1975-05-27 |
ATA719674A (de) | 1979-05-15 |
FR2245952B1 (de) | 1978-11-24 |
DE2348667A1 (de) | 1975-04-24 |
DE2348667B2 (de) | 1975-08-14 |
IT1022330B (it) | 1978-03-20 |
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