| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 04/12/2000 | EP0991950A1 Electric current pick-up shoe |
| 04/12/2000 | EP0991913A2 Element comprising a layer structure and a current-directing means |
| 04/06/2000 | WO1999057578A3 Ac current sensor having high accuracy and large bandwidth |
| 04/06/2000 | DE19841543A1 Vorrichtung und Verfahren zum Überwachen eines Signals Apparatus and method for monitoring a signal |
| 04/05/2000 | EP0990913A1 Voltage measuring instrument with flying capacitor |
| 04/05/2000 | EP0990291A1 Method for adapting a protective relay to the mains frequency, and a protective relay |
| 04/05/2000 | EP0990162A1 Method for detecting the direction of rotation in three-phase networks, use of said method and pertaining digital overload relay |
| 04/05/2000 | CN2372695Y Test pencil |
| 04/05/2000 | CN2372694Y Peak voltage detector |
| 04/04/2000 | US6046631 Detector coupled to transmission line by microstrip line |
| 03/30/2000 | WO2000017984A1 Energy management system and method |
| 03/30/2000 | WO2000017853A2 Multi-pulse sampling of signals using force sampling |
| 03/30/2000 | CA2303896A1 Energy management system and method |
| 03/29/2000 | EP0988557A2 Method and apparatus for indicating an alternating voltage |
| 03/29/2000 | CN1248704A Monitor for power source wire voltage |
| 03/23/2000 | WO2000016176A1 Device and method for monitoring a signal |
| 03/23/2000 | WO2000016108A1 Battery voltage detector |
| 03/23/2000 | DE19838657A1 Load current detection circuit e.g. for power field effect transistor (IGFET) |
| 03/22/2000 | CN2370426Y Microcomputer monitoring power frequency high voltage test wave recorder |
| 03/22/2000 | CN2370425Y Automobile test pencil |
| 03/21/2000 | US6040689 Current sensing method and apparatus |
| 03/21/2000 | CA2034147C Device for detecting residual capacity of a battery both in load and no load conditions |
| 03/16/2000 | WO1999060414A3 Voltage level indicator |
| 03/16/2000 | DE19809784C1 Alternating voltage rectifier circuit for working with small amplitudes in alternating voltages |
| 03/15/2000 | CN2369410Y Voltage measuring protection regulator |
| 03/14/2000 | US6037762 Voltage detector having improved characteristics |
| 03/09/2000 | DE19840479A1 Strommessung in Pumpen Current measurement in pump |
| 03/08/2000 | EP0984292A2 Current measurements in pumps |
| 03/08/2000 | EP0861442B1 Current measurement in turbogenerators |
| 03/08/2000 | CN2368038Y High-voltage charge indicator |
| 03/08/2000 | CN2368037Y Instrument for measuring capacity and current of electric network to ground |
| 03/08/2000 | CN1050236C Excess current detecting device |
| 03/08/2000 | CN1050199C Cable signal detecting and measuring instrument |
| 03/07/2000 | US6034781 Electro-optical plasma probe |
| 03/07/2000 | US6034522 Fibre optic transducer incorporating an extraneous factor compensation referencing system |
| 03/07/2000 | US6034512 Regulator for a polyphase motor vehicle alternator |
| 03/02/2000 | WO2000011482A1 Device and method for creating one or more magnetic field gradients through a straight conductor |
| 03/02/2000 | DE19846787C1 Method of determining the exponentially weighted effective value of a signal involves using a computation equation representing squaring, low pass filtering and forming the square root |
| 03/02/2000 | DE19838536A1 Vorrichtung und Verfahren zur Bildung eines oder mehrerer Magnetfeldgradienten durch einen geraden Leiter Apparatus and method for forming one or more magnetic field gradients through a straight conductor |
| 03/01/2000 | EP0981756A1 Generator and method for measuring the voltage of same |
| 03/01/2000 | CN2366856Y Arrangement for measuring work frequency testing voltage at low voltage side of transformer |
| 03/01/2000 | CN1246214A Power supply monitoring integrated circuit device and battery pack |
| 03/01/2000 | CN1050001C Current signal correction process and device |
| 02/29/2000 | US6031397 Negative voltage detection circuit offsetting fluctuation of detection level |
| 02/29/2000 | US6031370 Semiconductor testing apparatus |
| 02/29/2000 | US6029324 Acoustical-electronic component operating with acoustical surface waves as well as a tunable delay line, a resonator and a semiconductor sensor using the component |
| 02/24/2000 | WO2000010248A1 Circuit for detecting peak voltage in integrated circuits |
| 02/24/2000 | WO2000010018A2 Method for the surveillance and automatic digital recording of electrical systems perturbations |
| 02/23/2000 | EP0981198A2 Improved signal detector |
| 02/23/2000 | CN2365676Y Automatic-off portable digital pincerlike meter |
| 02/22/2000 | US6028464 Transient signal detector |
| 02/22/2000 | US6028457 CMOS comparator |
| 02/22/2000 | US6028456 Dual-threshold comparator circuit utilizing a single input pin |
| 02/22/2000 | US6028426 Temperature compensated current measurement device |
| 02/19/2000 | CA2280494A1 Improved signal detector |
| 02/17/2000 | WO2000008478A1 Method and apparatus using an infrared laser probe for measuring voltages directly in an integrated circuit |
| 02/17/2000 | WO2000002110A3 Micromechanical alternating and direct voltage reference apparatus |
| 02/16/2000 | EP0979419A2 Magnetic current sensor |
| 02/16/2000 | CN2364470Y Cable connector type voltage indicating device |
| 02/16/2000 | CN2364469Y Sensor for high-voltage charge display device |
| 02/16/2000 | CN2364468Y Test pencil |
| 02/16/2000 | CN1244924A Method of measuring current while applying a voltage and apparatus therefor |
| 02/15/2000 | US6025708 System for verifying signal voltage level accuracy on a digital testing device |
| 02/14/2000 | CA2685207A1 Reduced cost automatic meter reading system and method using locally communicating utility meters |
| 02/14/2000 | CA2685205A1 Reduced cost automatic meter reading system and method using locally communicating utility meters |
| 02/10/2000 | WO2000007030A1 Particle beam current monitoring technique |
| 02/10/2000 | DE19837011C1 Peak voltage detection circuit arrangement |
| 02/09/2000 | EP0978169A2 An arrangement in a subscriber line interface circuit |
| 02/08/2000 | US6023191 Method and apparatus for detecting an input signal |
| 02/03/2000 | WO2000005814A1 Differential comparator with stable switching threshold |
| 02/03/2000 | WO2000005596A1 Signalling system |
| 02/03/2000 | WO1999056074A3 Element comprising a layer structure and a current-directing means |
| 02/03/2000 | DE19836082A1 Wandlereinrichtung für Schutzgeräte und Leistungsschaltereinrichtungen Transducer means for protection devices and circuit breakers facilities |
| 02/03/2000 | DE19834433A1 Vorrichtung zur Offsetkompensation bei analogen Signalmessungen Device for offset compensation in analog signal measurements |
| 02/03/2000 | DE19834315A1 Schaltungsanordnung zur Messung und Begrenzung von Strömen in Umrichtern zur Speisung von Motoren Circuit arrangement for measuring and limiting currents in converters to feed motors |
| 02/03/2000 | CA2338282A1 Signalling system |
| 02/02/2000 | EP0977337A2 Circuit for measuring and limiting currents in converters for supplying motors |
| 02/02/2000 | EP0977043A1 Broad dynamic range RMS measurement method |
| 02/02/2000 | EP0977042A2 Appliance for offset compensation in analog signal measurement |
| 02/02/2000 | EP0977041A2 Transducer arrangement for protection apparatus and power breakers |
| 02/02/2000 | EP0975980A2 Peak detection apparatus |
| 02/02/2000 | CN2362133Y Voltage regulating automatic indicator for power supply device |
| 02/02/2000 | CN1049074C Breaker |
| 02/01/2000 | US6020822 Circuit tester |
| 01/26/2000 | EP0975137A2 Network control apparatus capable of decreasing power consumption during a waiting mode |
| 01/25/2000 | US6018700 Self-powered current monitor |
| 01/25/2000 | US6018239 Self-powered axial current sensor |
| 01/25/2000 | US6018238 Hybrid non-contact clamp-on current meter |
| 01/20/2000 | DE19931268A1 Optical sampling device for low frequency signals |
| 01/20/2000 | DE19822501A1 Surface acoustic wave component for remotely controlled sensor for voltage measurement |
| 01/19/2000 | CN1241724A Digital voltammeter |
| 01/18/2000 | US6016566 Comparator for semiconductor testing device |
| 01/18/2000 | US6016105 Fault indicator providing contact closure and light indication on fault detection |
| 01/13/2000 | WO2000002110A2 Micromechanical alternating and direct voltage reference apparatus |
| 01/13/2000 | DE19832632A1 Peak value rectifier circuit, e.g. for particle measuring device |
| 01/12/2000 | EP0970384A2 Current comparator |
| 01/12/2000 | CN2358458Y Double test pencil |
| 01/12/2000 | CN1241259A Instrument for measuring voltages of cells |
| 01/11/2000 | US6014030 Current-level monitor with hierarchical precision |
| 01/11/2000 | US6014005 Method and circuit arrangement for the control of a motor |