| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 08/02/2001 | WO2001055735A1 Method for detecting the current density distribution in a fuel cell stack |
| 08/02/2001 | WO2001054951A1 Mains-connected vehicle apparatus |
| 08/02/2001 | US20010011289 Method for improving the accuracy in the determination of a waveform center of a waveform signal |
| 08/02/2001 | DE10003584A1 Verfahren zur Bestimmung der Stromdichteverteilung in Brennstoffzellenstocks durch Messung des den Stock umgebenen magnetischen Feldes A method for determining the current density distribution in the fuel cell by measuring the floor the floor surrounding magnetic field |
| 08/01/2001 | EP1119748A1 Interferometer coupler using multiple input ports for improved stabiblity |
| 08/01/2001 | CN2441255Y Back-up uninterrupted power supply with color liquid crystal display |
| 08/01/2001 | CN2441144Y Relative voltage measuring device |
| 07/31/2001 | US6269316 System and method for detecting flicker in an electrical energy supply |
| 07/31/2001 | US6268764 Bandgap voltage comparator used as a low voltage detection circuit |
| 07/31/2001 | US6268733 Field service system for analog current analysis of digitally controlled power devices |
| 07/26/2001 | WO2001053846A1 Power supply analyser |
| 07/26/2001 | WO2001053843A1 Electric arc monitoring systems |
| 07/26/2001 | WO2001053840A1 Circuit for voltage level detection |
| 07/26/2001 | US20010009378 Probe holder for low current measurements |
| 07/26/2001 | DE10000116A1 Direct current measuring sensor uses closed annular magnetic core with areas containing magnetic powder composite for providing linear sensor characteristic |
| 07/25/2001 | EP1119103A1 Clock signal supply |
| 07/24/2001 | US6265860 Waveform measuring apparatus and waveform obtaining method |
| 07/19/2001 | WO2001051945A1 Method for compensating for measurement errors that occur while measuring current in an energy store |
| 07/19/2001 | US20010008375 Current detecting device, impedance measuring instrument and power measuring instrument |
| 07/18/2001 | CN2439674Y Computer control, high voltage and pulsation type power network alarming instrument |
| 07/18/2001 | CN1304579A Method and circuit for power detection in electronically switched electric motors |
| 07/18/2001 | CN1304492A Method and circuit for measuring current |
| 07/17/2001 | US6262670 Source measure unit having secondary feedback for eliminating transients during range changing |
| 07/12/2001 | WO2001050143A1 Current detector and current measuring apparatus including such detector with temperature compensation |
| 07/12/2001 | WO2001050141A1 Sensor for measuring a direct current and a measuring method |
| 07/11/2001 | EP1115043A2 Voltage detecting device, battery remaining voltage detecting method, electronic timepiece and electronic device |
| 07/11/2001 | EP1115001A1 Trigger node for measurement system |
| 07/11/2001 | EP1114327A1 Method and apparatus for real time measurement of three phase electrical parameters |
| 07/11/2001 | EP1114325A1 Device and method for measuring an electric current |
| 07/11/2001 | CN2439134Y Overvoltage protector for main distributing frame protecting unit |
| 07/11/2001 | CN2439030Y Micro-electronic insulator zero-detection device |
| 07/11/2001 | CN1303481A System for concurrent digital measurement of peak voltage and RMS voltage in high voltage system |
| 07/10/2001 | US6259296 Voltage comparator |
| 07/10/2001 | US6259267 Power-current measuring circuit in burn-in tester |
| 07/10/2001 | US6259257 Nonintrusive power and continuity testing tools |
| 07/10/2001 | CA2250448C Detector |
| 07/05/2001 | WO2001048492A1 Minimizing windowing effects in particular for signal recovery |
| 07/05/2001 | WO2001048491A2 Rms-dc converter having gain stages with variable weighting coefficients |
| 07/05/2001 | DE10064514A1 Probe signal output device for electro-optical probe, has driver current control circuit with current drive circuit that supplies driver current to light source according to change in adder output |
| 07/04/2001 | EP1113571A2 Modular current sensor and power source |
| 07/04/2001 | CN2438132Y Three-hole socket wiring testing device |
| 07/04/2001 | CN2438130Y High-voltage charge indicator of field effect |
| 07/04/2001 | CN1302465A Adaptive sampling rate based on power system frequency |
| 07/03/2001 | US6255842 Applied-voltage-based current measuring method and device |
| 07/03/2001 | US6255826 Battery voltage measuring device |
| 06/28/2001 | US20010005143 Configuration for measurement of internal voltages in an integrated semiconductor apparatus |
| 06/28/2001 | DE19959772A1 Differential protection method to generate error signal characterising error current in electrical conductor; involves using current sensor at each end of conductor and forming total current value |
| 06/27/2001 | EP1110094A1 Device and method for creating one or more magnetic field gradients through a straight conductor |
| 06/27/2001 | CN2436942Y Electricity test pen |
| 06/27/2001 | CN1300946A Method for monitoring phase faults and electric appliances equipped therewith |
| 06/27/2001 | CA2322934A1 Current sensing circuit and telephone line interface card with enhanced current sensing circuit |
| 06/26/2001 | US6252428 Method and apparatus for detecting a sinusoidal signal |
| 06/26/2001 | US6252390 Magnetically coupled signal isolator |
| 06/26/2001 | US6252388 Method and apparatus for measuring voltage using electric field sensors |
| 06/26/2001 | US6252387 Oscilloscope utilizing probe with electro-optic crystal |
| 06/21/2001 | WO2000054063A8 Device and method for measuring an electric current |
| 06/21/2001 | DE10027092A1 Analoge Signaldetektionsschaltung, und AC seitiger Stromdetektor für eine Halbleiterleistungsumsetzeinrichtung Analog signal detection circuit and AC side current detector for a Halbleiterleistungsumsetzeinrichtung |
| 06/20/2001 | EP1109026A1 Apparatus for detecting a high voltage |
| 06/20/2001 | CN2435746Y Pocket 12V serial vehicle electrotechnical tester |
| 06/20/2001 | CN2435745Y Intelligent optical indicator/digital double-display instrument |
| 06/20/2001 | CN1300439A Imput circuit for relatively high current AC signals to be monitored |
| 06/20/2001 | CN1299975A Voltage detection apparatus, cell residual voltage detection apparatus, voltage detection method and cell residual voltage detection method |
| 06/19/2001 | US6249447 System and method for determining output current and converter employing the same |
| 06/19/2001 | US6249162 Hysteresis circuit |
| 06/14/2001 | US20010003419 Apparatus for measuring current flowing in a conductor |
| 06/13/2001 | EP1107011A1 Method and device for measuring the temperature of high frequency components |
| 06/13/2001 | EP1107010A2 Phase loss monitoring |
| 06/13/2001 | EP1107009A1 Current intensity measuring apparatus in a conductor |
| 06/13/2001 | EP1105741A1 Method and device for measuring an electrical equipment discharge |
| 06/13/2001 | DE19958938A1 Monitoring method for current of electrical conductor involves triggering admission of LED depending on comparison result of digitized measurement values and digitized display thresholds |
| 06/13/2001 | DE19958369A1 Phasenausfall-Überwachung Phase failure monitoring |
| 06/13/2001 | DE10051984A1 Cell voltage measurement apparatus for secondary battery used in hybrid vehicles, drives switches connected in between battery module and capacitor and in between capacitor and voltage acquisition unit alternatively |
| 06/12/2001 | US6246624 Voltage detection circuit power-on/off reset circuit and semiconductor device |
| 06/12/2001 | US6246350 Optoelectronic analog-to-digital converter |
| 06/12/2001 | US6246332 System and method for detecting voltage and current imbalance in an electrical energy supply |
| 06/12/2001 | US6246272 Power supply voltage detecting apparatus |
| 06/12/2001 | US6246267 Method and apparatus for detecting a sinusoidal signal using a counter and queue |
| 06/12/2001 | US6246225 Apparatus for detecting a completed electrical circuit and testing an electrical output receptacle |
| 06/12/2001 | US6246044 Switched electrical pulse propagation sampler |
| 06/07/2001 | US20010002793 Detector device |
| 06/07/2001 | DE19949997A1 Characteristic value determination method for sinusoidal current or voltage signal, involves integrating electrical signal using coupled integrators such that output signal has suitable phase shift |
| 06/07/2001 | DE10053440A1 Current detector for motors used in vehicle, has power supply circuit supplying same voltage to current sensor and analog-to-digital converter |
| 06/06/2001 | CN2433632Y Measuring apparatus |
| 06/06/2001 | CN1066825C Decision circuit operable at a wide range of voltage |
| 06/05/2001 | US6243652 System for concurrent digital measurement of peak voltage and RMS voltage in high voltage system |
| 06/05/2001 | US6242938 Electrical circuit to detect load current |
| 06/05/2001 | US6242899 Waveform translator for DC to 75 GHz oscillography |
| 05/30/2001 | EP1104002A1 Electron beam measurement method and electron beam irradiation processing device |
| 05/30/2001 | EP1102999A1 Method and apparatus using an infrared laser probe for measuring voltages directly in an integrated circuit |
| 05/30/2001 | CN1297154A Active sensor for detecting electric leakage |
| 05/29/2001 | US6239610 Arrangement for detecting jamming situations in electric drives |
| 05/29/2001 | US6239586 System for digital measurement of breakdown voltage of high voltage samples |
| 05/29/2001 | US6239581 Battery state monitoring circuit and battery device |
| 05/25/2001 | WO2001036988A1 Arrangement for measuring the root mean square of a power frequency voltage across a large dynamic range, especially for measuring electrical output |
| 05/24/2001 | US20010001850 Digital storage oscilloscope with simultaneous primary measurement and derived parameter display on common time axis and method therefor |
| 05/24/2001 | US20010001536 Ultra-high-frequency current probe in surface-mount form factor |
| 05/23/2001 | EP1101264A1 Method and apparatus for deriving power system data from configurable source points |
| 05/23/2001 | EP1101123A1 Particle beam current monitoring technique |
| 05/23/2001 | EP1101120A1 Voltage monitor circuit with adjustable hysteresis using a single comparator |
| 05/23/2001 | DE19955342A1 Anordnung zum Messen des Effektivwertes einer Wechselspannung über einen großen Dynamikbereich, insbesondere zum Messen der elektrischen Leitung Arrangement for measuring the rms value of an alternating voltage over a large dynamic range, particularly for measuring the electrical line |