| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/14/2004 | CN1467507A Main path sampling type multi-port network |
| 01/14/2004 | CN1134669C Method and device for monitoring power-supply network |
| 01/13/2004 | US6677850 Layered current sensor |
| 01/13/2004 | US6677785 Power level detection circuit |
| 01/13/2004 | US6677758 Multiplex voltage measurement apparatus |
| 01/13/2004 | US6677741 Capacitive test point voltage and phasing detector |
| 01/08/2004 | WO2004004264A1 Detector, test device, test method, and program |
| 01/08/2004 | WO2004003574A1 Under-voltage detection circuit |
| 01/08/2004 | WO2002041493A3 Processing web for data processing in a digital oscilloscope or similar instrument |
| 01/08/2004 | US20040004483 Method and apparatus for control and fault detection of an electric load circuit |
| 01/08/2004 | DE10226412A1 Verfahren zur Kalibrierung von Spannungsmessmitteln und zur Messung von Spannungen periodischer Spannungssignale sowie Mess- und Kalibliervorrichtung Method for the calibration of voltage measuring means for measuring voltages and periodic voltage signals and measuring and Kalibliervorrichtung |
| 01/08/2004 | DE10212685A1 Schaltungsanordnung und Verfahren zum Überprüfen eines Stromkreises Circuit arrangement and method for verifying a circuit |
| 01/07/2004 | CN2597996Y Sampling circuit for 220V ac voltage |
| 01/07/2004 | CN2597995Y Energy storage flash low-voltage electrometer |
| 01/07/2004 | CN2597994Y Electrometer |
| 01/07/2004 | CN1466107A Electricity consumption monitoring system |
| 01/07/2004 | CN1465982A Automatic voltage detector |
| 01/06/2004 | US6675071 Power quality utility metering system having waveform capture |
| 01/06/2004 | US6674299 Semiconductor tester, semiconductor integrated circuit and semiconductor testing method |
| 01/06/2004 | US6674278 AC current detection device |
| 01/06/2004 | US6674264 Cell voltage detector for fuel cell |
| 12/25/2003 | US20030234642 High speed measurement system which selects optimal measurement range on a sample by sample basis |
| 12/24/2003 | WO2003107017A1 Magnetic bridge type current sensor, magnetic bridge type current detecting method, and magnetic bridge for use in that sensor and detecting method |
| 12/24/2003 | CN2595047Y Power supply device for eliminating computer radiation |
| 12/24/2003 | CN2595025Y Inductive high-voltage charge display locking device |
| 12/24/2003 | CN2594798Y Separate-phase control inductive high-voltage display blocking device |
| 12/24/2003 | CN1462886A Digital method for measuring real effective value of AC electric auqntity |
| 12/24/2003 | CN1462606A Measurement device |
| 12/24/2003 | CA2503828A1 Magnetic bridge type current sensor, magnetic bridge type current detecting method, and magnetic bridge for use in that sensor and detecting method |
| 12/23/2003 | US6668232 Arrangements to detect and respond to disturbances in electrical power systems |
| 12/23/2003 | US6667632 Potential sensor for detecting voltage of inspection target at non-contact condition to attain higher speed of inspection |
| 12/18/2003 | WO2003052713A3 Control device for an electrical load |
| 12/18/2003 | WO2003034077A3 Photoconductive-sampling voltage measurement |
| 12/18/2003 | US20030230732 Ion irradiation system |
| 12/17/2003 | CN2593201Y Analogue-digital signal conversion control panel of high-tension wire tester |
| 12/17/2003 | CN2593200Y Silicon rectifier generator, storage battery fault indicator |
| 12/17/2003 | CN1462510A Current detection IC |
| 12/16/2003 | US6665620 Utility meter having primary and secondary communication circuits |
| 12/16/2003 | US6664817 Zero-cross detection circuit |
| 12/16/2003 | US6664761 Battery voltage detection device |
| 12/16/2003 | CA2294238C Methods for detecting the rotation direction of three-phase networks |
| 12/11/2003 | WO2003103127A1 Test circuit |
| 12/11/2003 | WO2003103002A2 Ion implantation system having an energy probe |
| 12/10/2003 | EP1368668A2 Measured value acquisition and processing unit for small measuring signals |
| 12/10/2003 | CN1130739C Imput circuit for relatively high current AC signals to be monitored |
| 12/10/2003 | CN1130568C 电流测量方法 Current measurement methods |
| 12/09/2003 | US6661258 Low voltage detecting circuit for detecting input power of a modem |
| 12/09/2003 | US6661218 High voltage detector |
| 12/09/2003 | US6661217 Wideband precision current sensor |
| 12/09/2003 | US6661204 Battery charge monitor |
| 12/09/2003 | US6661017 Ion implantation system having an energy probe |
| 12/04/2003 | US20030222681 Comparator |
| 12/04/2003 | US20030222511 Measuring circuit |
| 12/04/2003 | US20030222226 Ion implantation system having an energy probe |
| 12/03/2003 | EP1367401A1 Current sensor and overload current protective device comprising the same |
| 12/03/2003 | CN2590237Y Multifunctional current meter |
| 12/03/2003 | CN2589994Y Portable voltage detecting instrument |
| 12/03/2003 | CN2589993Y High-voltage AC electroscope |
| 12/03/2003 | CN2589992Y Electricity testing compound conductor |
| 12/03/2003 | CN2589989Y High-speed isolation multi path voltage sampling instrument |
| 12/03/2003 | CN1460183A Circuit for detecting leak from power supply |
| 12/03/2003 | CN1459637A Working voltage testing method of power supplier and its system |
| 12/02/2003 | US6657452 Configuration for measurement of internal voltages of an integrated semiconductor apparatus |
| 12/02/2003 | US6657442 Micromechanical alternating and direct voltage reference apparatus |
| 12/02/2003 | US6657212 Electron beam measurement method and electron beam irradiation processing device |
| 11/27/2003 | WO2002067293A3 Microelectromechanical systems (mems) device including an analog or a digital |
| 11/27/2003 | US20030220752 Apparatus and system for protection, control, and management of electricity distribution systems using time synchronization |
| 11/27/2003 | US20030218455 Current sense apparatus and method |
| 11/26/2003 | EP1365252A1 Current direction detection |
| 11/26/2003 | EP1365133A2 Measuring circuit, and use of a measuring resistance |
| 11/26/2003 | EP1364614A1 Voltage measuring device comprising fixing member, electrode and transmitter |
| 11/26/2003 | EP1364219A1 Device, amperemeter and motor vehicle |
| 11/26/2003 | CN2588634Y Intelligent electricity distribution cabinet |
| 11/26/2003 | CN2588616Y Electricity leakage alarm socket |
| 11/26/2003 | CN2588564Y Grounding wire with alarm |
| 11/26/2003 | CN2588379Y Electricity test pen with metal prober |
| 11/26/2003 | CN2588378Y AC/dc source and drainage carrent free transducer |
| 11/25/2003 | US6654192 High frequency track and hold full-wave rectifier |
| 11/25/2003 | US6653869 Universal CMOS single input, low swing sense amplifier without reference voltage |
| 11/25/2003 | US6653826 Alternating voltage detector |
| 11/20/2003 | WO2003096033A1 Test apparatus |
| 11/20/2003 | US20030214426 Real-time transient pulse monitoring system and method |
| 11/20/2003 | US20030214424 System for sampling a signal in an electronic instrument using a unipolar A/D converter |
| 11/20/2003 | US20030214313 Current detection equipment and semiconductor device |
| 11/20/2003 | US20030214268 Device and method for the detection of a charging voltage |
| 11/19/2003 | EP1363131A1 Measuring circuit with several choppers |
| 11/18/2003 | US6651036 RMS-to-DC converter with fault detection and recovery |
| 11/13/2003 | US20030212522 Externally controllable electronic test program |
| 11/13/2003 | US20030212512 Apparatus and system for protection, control, and management of electricity distribution systems over a network |
| 11/12/2003 | EP1361447A2 Externally controllable electronic test system and corresponding method |
| 11/12/2003 | EP1360511A2 System and method for current sensing |
| 11/12/2003 | CN2586297Y Current switch |
| 11/12/2003 | CN1455507A Apparatus and method of detecting current direction in bridge circuit |
| 11/12/2003 | CN1127815C Arrangement in a subscriber line interface circuit |
| 11/11/2003 | US6646503 Circuit configuration for detecting a functional disturbance |
| 11/11/2003 | US6646450 Method and apparatus for near losslessly measuring inductor current |
| 11/11/2003 | US6646442 Voltage detection device for a battery package |
| 11/11/2003 | US6646430 Current measuring shunt with circuitry mounted thereon |
| 11/06/2003 | WO2003091738A1 Measurement system graphical user interface for easily configuring measurement applications |
| 11/06/2003 | US20030206022 Apparatus for detecting current direction in bridge circuits and method thereof |