| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 04/02/2003 | CN1104693C Arithmetic and logic unit |
| 03/26/2003 | EP1296146A1 RF signal detector circuit with reduced sensitivity to transmission line impedance mismatches |
| 03/18/2003 | US6534966 Methods and apparatus for power measuring receiver |
| 03/18/2003 | CA2243226C Three-phase electrical power measurement system |
| 03/18/2003 | CA2059352C Method and apparatus for measuring the degree of fullness in a mill |
| 03/13/2003 | WO2003021279A1 Methods and apparatus for phase compensation in electronic energy meters |
| 03/11/2003 | US6531860 Integrated power detector with temperature compensation |
| 03/06/2003 | US20030042886 Methods and apparatus for phase compensation in electronic energy meters |
| 03/06/2003 | US20030042885 Integrated power detector with temperature compensation |
| 03/04/2003 | US6528983 Power sensor for RF power amplifier |
| 02/27/2003 | WO2003003029A3 A method and apparatus for reading and controlling electric power consumption |
| 02/26/2003 | EP1286167A2 Apparatus and method for processor power measurement in a digital signal processor using trace data and simulation techniques |
| 02/26/2003 | EP1285280A2 Solid-state single-phase meter and methods and apparatus for programming such meter |
| 02/26/2003 | EP1141732B1 Utility metering system having waveform capture for power quality monitoring |
| 02/26/2003 | CN2537982Y Novel electric energy and electric power measuring meter |
| 02/25/2003 | US6526360 Power consumption display device for machine |
| 02/25/2003 | US6526359 Apparatus and method for measuring small increases in machine tool drive motor power |
| 02/25/2003 | US6525524 High linearity, low offset interface for hall effect devices |
| 02/18/2003 | US6522121 Broadband design of a probe analysis system |
| 02/13/2003 | WO2003012462A1 Modular sensor array, metering device and mounting and connection base |
| 02/13/2003 | US20030033564 Apparatus and method for processor power measurement in a digital signal processor using trace data and simulation techniques |
| 02/13/2003 | US20030033097 Method and apparatus for measuring signal pulse energy |
| 02/13/2003 | CA2452711A1 Modular sensor array, metering device and mounting and connection base |
| 02/12/2003 | CN2535810Y Electric-energy meter monitoring device |
| 02/12/2003 | CN1396459A Three-phase moulded measuring tool |
| 02/11/2003 | US6518782 Active power monitoring using externally located current sensors |
| 02/11/2003 | US6518743 Wide-band RF signal power detecting element and power detecting device using the same |
| 02/06/2003 | US20030025488 Power sensing RF termination apparatus including temperature compensation means |
| 02/05/2003 | EP1155334B1 Utility meter with display during power interruption |
| 02/05/2003 | CN1395108A Multi-ratio load electric power metering device |
| 02/04/2003 | CA2239369C Electronic measurement device |
| 01/30/2003 | US20030020492 Power sensor |
| 01/30/2003 | US20030020455 Method and apparatus for measuring electrical energy consumption for multiple consumers |
| 01/29/2003 | CN1394283A Electronic device |
| 01/28/2003 | CA2134510C Method and apparatus for executing a command in a plurality of electrical metering devices |
| 01/22/2003 | EP1278073A1 Device for measuring the electrical current flowing through at least an electrical conductor and method for error correction in such a device |
| 01/22/2003 | EP1277274A2 An accurate power detection circuit for use in a power amplifier |
| 01/22/2003 | EP1092159B1 Layered current sensor |
| 01/21/2003 | US6510213 Unit for the bidirectional detection and transmission of data via modern communication networks |
| 01/16/2003 | US20030014200 Revenue meter with power quality features |
| 01/14/2003 | US6507794 Energy meter with power quality monitoring systems and methods |
| 01/09/2003 | WO2003003031A1 Electrical utility meter having harmonic data templates for power quality alarm thresholds |
| 01/09/2003 | WO2003003029A2 A method and apparatus for reading and controlling electric power consumption |
| 01/09/2003 | US20030006753 High linearity, low offset interface for hall effect devices |
| 01/09/2003 | CA2451671A1 A method and apparatus for reading and controlling electric power consumption |
| 01/07/2003 | US6504357 Apparatus for metering electrical power and electronically communicating electrical power information |
| 01/07/2003 | CA2265863C Current measurement methods and apparatus employing second harmonic scaling |
| 01/03/2003 | WO2003001220A1 Power detection circuit for use in a power amplifier |
| 01/02/2003 | US20030004660 Method and apparatus for reading and controlling electric power consumption |
| 01/02/2003 | US20030001747 Electrical utility meter having harmonic data templates for power quality alarm thresholds |
| 01/01/2003 | CN1097869C Method for obtaining display fluctuation signal. of power supply network |
| 12/31/2002 | US6501257 High speed multifunction testing and calibration of electronic electricity meters |
| 12/31/2002 | CA2298926C Temperature compensated power detector |
| 12/27/2002 | WO2002103375A2 Integrated power detector with temperature compensation |
| 12/26/2002 | US20020196044 Circuit technique for montonic on chip power detection |
| 12/26/2002 | US20020196011 Electronic device |
| 12/17/2002 | US6496783 Electric power calculation system |
| 12/12/2002 | WO2002014881A9 Method and equipment for power measurement in an alternating-current system |
| 12/12/2002 | US20020186000 Electronic revenue meter with automatic service sensing |
| 12/10/2002 | US6493644 A-base revenue meter with power quality features |
| 12/05/2002 | WO2002097471A1 Energy measuring method and device |
| 12/05/2002 | US20020180420 Electronic electricity meter configured to correct for transformer inaccuracies |
| 12/04/2002 | CN2524423Y Monophase active power factor calibration rectifying circuit |
| 12/04/2002 | CN1382994A Intelligent network method for detecting and recording electric energy metering failure |
| 12/03/2002 | US6489834 System and method utilizing on-chip voltage monitoring to manage power consumption |
| 11/28/2002 | WO2002095427A1 Apparatus and method for measuring power consumption using voltage variation of capacitors |
| 11/28/2002 | WO2001088553A3 Solid-state single-phase meter and methods and apparatus for programming such meter |
| 11/28/2002 | US20020175671 Apparatus and system for electrical power metering using digital integration |
| 11/28/2002 | US20020175668 Methods and apparatus for power measuring receiver |
| 11/27/2002 | EP1259830A1 Method and apparatus for measuring true transmitted power using a broadband dual directional coupler |
| 11/27/2002 | CN1381731A Method and device for measuring sinusoidal signal instantaneous power |
| 11/26/2002 | US6486652 High function, user configurable electricity meter |
| 11/21/2002 | WO2002012908A3 Electronic power meter with phase and non-linearity compensation |
| 11/20/2002 | EP1258734A2 Method and receiver for measuring power |
| 11/20/2002 | EP1257832A1 System and method for digitally compensating frequency and temperature induced errors in amplitude and phase shift in current sensing of electronic energy meters |
| 11/20/2002 | CN1094595C Measuring equipment for electricity meter |
| 11/19/2002 | US6483291 Apparatus for measuring electrical power consumption |
| 11/19/2002 | US6483290 Apparatus for metering electrical power that determines energy usage data based on downloaded information |
| 11/19/2002 | US6483289 Modular sensor array, metering device and mounting and connection base |
| 11/19/2002 | US6483285 Electricity meter with an additional computing module |
| 11/14/2002 | US20020169570 Electronic power meter |
| 11/07/2002 | WO2002088761A2 Apparatus and system for electrical power metering using digital integration |
| 11/07/2002 | US20020165677 Apparatus and method for seamlessly upgrading the firmware of an intelligent electronic device |
| 11/06/2002 | CN1093940C Automated communication of electricity meter data |
| 11/05/2002 | US6476729 Power monitoring module with display unit for electrical power source device |
| 11/05/2002 | CA2150635C Current measurement circuit comprising a mutually coupled transformer and an integration circuit |
| 10/31/2002 | US20020162014 Intelligent electronic device with assured data storage on powerdown |
| 10/30/2002 | CN1376927A Broadband design of detecting analytic system |
| 10/29/2002 | US6473699 Power arithmetic apparatus |
| 10/29/2002 | US6472860 Compensated RF power detector |
| 10/24/2002 | WO2002084309A1 Utility usage rate monitor |
| 10/24/2002 | CA2443987A1 Utility usage rate monitor |
| 10/23/2002 | EP1251356A2 Method and apparatus for determining the instantaneous power of a sinusoidal signal |
| 10/23/2002 | CN1375702A Reactive power measuring method based on digital filtering |
| 10/23/2002 | CN1375701A Low-cost power measuring apparatus for multiple electric motor |
| 10/10/2002 | WO2002041585A3 Intelligent appliance home network |
| 10/10/2002 | US20020145415 Method and apparatus for determining the instantaneous power of a sinusoidal signal |
| 10/10/2002 | DE10104064C1 Kompensationsschaltung für die Phasenverschiebung bei Elektrizitätszählern zum direkten Anschluss Compensation circuit for the phase shift in electricity meters for direct connection |
| 10/03/2002 | US20020143482 Method and apparatus for monitoring electrical usage |
| 10/02/2002 | DE10110626A1 Verfahren und Halbleiterbauteil mit einer Einrichtung zur Bestimmung einer internen Spannung The method and semiconductor device with a device for determining an internal voltage |