| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 05/08/2002 | EP1203963A2 Battery voltage measurement device |
| 05/08/2002 | EP1203560A2 Method and apparatus for tracking an object, in particular a catheter, using energy fields |
| 05/08/2002 | EP0929818B1 Electrical circuit to detect load current |
| 05/08/2002 | CN2490589Y Current sampling resistance |
| 05/07/2002 | US6385547 Automatic monitoring of high voltage signals |
| 05/07/2002 | US6385022 Method and apparatus for deriving power system data from configurable source points |
| 05/07/2002 | US6384670 Method of using a bandgap voltage comparator in a low voltage detection circuit |
| 05/07/2002 | US6384664 Differential voltage sense circuit to detect the state of a CMOS process compatible fuses at low power supply voltages |
| 05/07/2002 | US6384636 Fast and precise current-sense circuit for high-voltage switch |
| 05/07/2002 | US6384615 Probe holder for low current measurements |
| 05/02/2002 | WO2002035245A1 Electronic device |
| 05/02/2002 | WO2000079310A9 Transient monitoring system and method |
| 05/02/2002 | US20020050827 System and method for measuring the power consumed by a circuit on a printed circuit board |
| 05/02/2002 | EP1202457A1 Method and software for switching off battery supplied electronic devices and mobile telephone equipped therewith |
| 05/02/2002 | EP1202071A2 Voltage measurement apparatus |
| 05/02/2002 | EP1200925A1 System and method for frequency compensation in an energy meter |
| 05/02/2002 | EP1200844A1 Method and apparatus for detecting slow and small changes of electrical signals including the sign of the changes, and circuit arrangement for the exact detection of the peak value of an alternating voltage |
| 05/01/2002 | CN2489343Y A.C. sensor |
| 05/01/2002 | CN1347145A Remote semiconductor testing method and apparatus |
| 05/01/2002 | CN1084072C 电源监控集成电路器件及电池组 Power monitoring integrated circuit device and battery pack |
| 04/30/2002 | US6380728 Bus bar for connecting electrical components with arrangement for measuring current and power electronics for controlling an electric machine |
| 04/30/2002 | US6380726 Smart auto-ranging RMS measurement method and apparatus |
| 04/30/2002 | US6380725 Voltage sensor |
| 04/25/2002 | WO2002033824A1 Power detection circuit and power detection method |
| 04/25/2002 | DE10050706A1 Circuit for converting input current signal to digital output signal has input node, reference node, converter, comparator, clocked counter that generates digital signal, digital-analog converter |
| 04/24/2002 | EP1198758A1 Measurement scale for non-uniform data sampling in n dimensions |
| 04/24/2002 | CN2488070Y Inductive network line detecting pen |
| 04/24/2002 | CN1346542A Comparator circuit |
| 04/24/2002 | CN1346442A Insulator support current sensor |
| 04/23/2002 | US6377054 Test device for electrical voltages with integrated illumination unit |
| 04/23/2002 | US6377053 Device for detecting short-circuits |
| 04/23/2002 | US6377036 Electro-optic sampling oscilloscope |
| 04/23/2002 | US6377035 Method of detecting an abrupt variation in an electrical alternating quantity |
| 04/23/2002 | US6376938 Power supply interface device |
| 04/23/2002 | US6376825 Single short radiation pulse analyzer having signal sampling delay time |
| 04/18/2002 | WO2002031950A2 System and method for detection of zero current condition |
| 04/18/2002 | WO2002031517A2 System and method for current sensing |
| 04/17/2002 | EP1197757A2 Inverter |
| 04/17/2002 | EP0943926B1 Instrument for measuring voltages of cells |
| 04/17/2002 | EP0900365B1 An environmentally insensitive optical sensor with improved noise cancellation |
| 04/17/2002 | EP0715745B1 Device for triggering a warning device |
| 04/17/2002 | CN1344937A Tangential point electroscopy and electroscope |
| 04/17/2002 | CN1344936A Measuring system and method for industrial frequency current in opened magnetic path |
| 04/16/2002 | US6374188 Energy meter with instrumentation systems and methods |
| 04/16/2002 | US6373240 Metal immune system for tracking spatial coordinates of an object in the presence of a perturbed energy field |
| 04/16/2002 | US6373227 Charging and discharging control circuit and charging type power supply device |
| 04/11/2002 | WO2002029514A2 Web bridged energy management system and method |
| 04/11/2002 | WO2001086788A3 Battery monitoring system |
| 04/11/2002 | WO2001077698A9 Power line testing device with signal generator and signal detector |
| 04/11/2002 | US20020041213 PLL circuit |
| 04/11/2002 | US20020041190 Current measuring method and current measuring apparatus |
| 04/10/2002 | EP1195771A2 Differential voltage sense circuit to detect the state of a CMOS process compatible fuses at low supply voltages |
| 04/10/2002 | EP1194785A2 Method for determining the amplitude and angle of phase of a measuring signal corresponding to the current or voltage of an electric power distribution system |
| 04/10/2002 | EP0619021B1 Current sensor |
| 04/10/2002 | CN2485770Y Multifunctional link bar |
| 04/10/2002 | CN1082737C Connection in particular plug-in connector for TT and TN networks |
| 04/10/2002 | CN1082666C Method for detecting a.c signal of preset frequency, and its detecting circuit |
| 04/10/2002 | CN1082665C Light measuring device and mfg. process |
| 04/09/2002 | US6370483 Synchronous linear machine for protective relaying |
| 04/09/2002 | US6369584 Signal correction apparatus and signal correction method |
| 04/09/2002 | US6369576 Battery pack with monitoring function for use in a battery charging system |
| 04/09/2002 | CA2198659C Apparatus for harmonic analysis of waveforms in an ac electrical system |
| 04/04/2002 | WO2002027333A2 Transformer current sensor |
| 04/04/2002 | US20020039027 Dynamically periodical detecting method and detector |
| 04/04/2002 | US20020039026 Power line testing device with signal generator and signal detector |
| 04/03/2002 | EP1192474A1 Floating plate voltage monitor |
| 04/03/2002 | EP0797794B1 A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device |
| 04/03/2002 | CN2484667Y Single-phase current display socket |
| 04/03/2002 | CN2484571Y Electromagnetic-ware radiation eleminator |
| 04/03/2002 | CN1343312A Low error, switchable measurement lead detect circuit |
| 04/02/2002 | US6366864 Adaptive sampling rate based on power system frequency |
| 04/02/2002 | US6366076 Device with wide passband for measuring electric current intensity in a conductor |
| 03/28/2002 | WO2000042524A9 Measurement scale for non-uniform data sampling in n dimensions |
| 03/28/2002 | US20020036198 Method of measuring a welding voltage at a heating coil of a heating coil fitting and a heating coil welding apparatus |
| 03/27/2002 | EP1191693A1 Circuit for monitoring the current through a power transistor |
| 03/27/2002 | EP0783786B1 AC load control device having a graphical display |
| 03/27/2002 | EP0748535B1 Improved supply voltage detection circuit |
| 03/27/2002 | CN2483732Y Current and voltage conversion device with low temp. coefficient |
| 03/27/2002 | CN1341860A Device and method for determining local short-circuit |
| 03/26/2002 | US6362677 Apparatus and methods for performing RMS-to-DC conversion utilizing clock dithering |
| 03/26/2002 | US6362627 Voltage measuring instrument with flying capacitor |
| 03/26/2002 | US6362626 Cell voltage measuring device for cell module |
| 03/26/2002 | US6362616 Flat response temperature gauge with a single diode |
| 03/26/2002 | CA2259711C Automatic power turn-on circuit for a battery-powered voltage measurement apparatus |
| 03/26/2002 | CA2198675C Electrical system monitoring apparatus with programmable custom display |
| 03/22/2002 | CA2320565A1 Monitoring wide area dynamic swing recordings on an electrical power system |
| 03/21/2002 | WO2002023736A1 Current sense ic |
| 03/21/2002 | DE10143732A1 Messignal-Generatorschaltung Measuring signal generator circuit |
| 03/20/2002 | EP1188075A1 Transient monitoring system and method |
| 03/20/2002 | CN2482695Y Special test pencil for vehicle |
| 03/20/2002 | CN2482694Y Punch DC small current sensor |
| 03/20/2002 | CN1081336C Comparator for semiconductor testing device |
| 03/14/2002 | US20020030616 Method of determining measuring time for an analog-digital converter |
| 03/14/2002 | US20020030497 Measurement signal generating circuit for linear scale |
| 03/14/2002 | US20020030477 Asymmetry detection circuit and detection method of same |
| 03/14/2002 | US20020030476 Multi-test circuit breaker locator |
| 03/13/2002 | EP1187288A2 Device and method for determining rare short circuit |
| 03/13/2002 | EP1114325B1 Device and method for measuring an electric current |
| 03/13/2002 | CN2482094Y Power supply phase interruption testing device of automatic change-over switch electric appliance |
| 03/13/2002 | CN2482093Y Anti-interference indicating lamp for power plant or transformer substation |