| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 10/17/2001 | EP1146344A1 Multiplex voltage measurement apparatus |
| 10/17/2001 | EP1145020A1 Method and arrangement for optically detecting an electric current using light signals that have different wavelengths |
| 10/17/2001 | CN2454942Y Connector with monitoring circuit |
| 10/17/2001 | CN1318217A Method and appts. for deriving power system data from configurable source points |
| 10/17/2001 | CN1317697A Method and device for detecting zero-line deficiency of three-phase circuit |
| 10/16/2001 | US6304120 Buffer circuit operating with a small through current and potential detecting circuit using the same |
| 10/16/2001 | US6304108 Reference-corrected ratiometric MOS current sensing circuit |
| 10/16/2001 | US6304088 Voltage monitor circuit with adjustable hysteresis using a single comparator |
| 10/16/2001 | US6304062 Shunt resistance device for monitoring battery state of charge |
| 10/16/2001 | US6303926 Optical sampler |
| 10/11/2001 | WO2001075775A2 Arc fault current interrupter testing device |
| 10/11/2001 | WO2001075431A1 Current measuring apparatus for battery |
| 10/10/2001 | EP1141732A1 Utility metering system having waveform capture for power quality monitoring |
| 10/10/2001 | CN2453449Y Device for detecting the earthing of DC operated electric power supply in electric power system |
| 10/10/2001 | CN1317089A Battery voltage detector |
| 10/10/2001 | CN1316649A Measuring device |
| 10/09/2001 | US6301400 Fiber optic current sensor having rotation immunity |
| 10/09/2001 | US6300776 Method and device for discrete-time reactance measurement |
| 10/09/2001 | US6300755 Enhanced modified faraday cup for determination of power density distribution of electron beams |
| 10/09/2001 | US6300617 Magnetic digital signal coupler having selected/reversal directions of magnetization |
| 10/04/2001 | US20010026226 CMOS low battery voltage detector |
| 10/04/2001 | US20010026161 Cell voltage measuring device for cell module |
| 10/04/2001 | US20010026147 Charging and discharging control circuit and charging type power supply device |
| 10/04/2001 | EP1138902A1 Method and apparatus for timed measurement of the voltage across a device in the charging circuit of a piezoelectric element |
| 10/04/2001 | EP1137950A1 Voltage sensor |
| 10/03/2001 | CN1072359C Method and apparatus for detecting input signal level |
| 10/02/2001 | US6298309 Current based frequency tracking method and apparatus |
| 10/02/2001 | US6297661 Semiconductor switch fault detection |
| 10/02/2001 | US6297646 Electrical tester for small motor vehicles |
| 10/02/2001 | US6297618 Power storage device and method of measuring voltage of storage battery |
| 09/27/2001 | WO2001031681A8 Method and apparatus for eliminating displacement current from current measurements in a plasma processing system |
| 09/27/2001 | WO2000052482A3 Arrangement for detecting the current by means of a precision resistor of a load current circuit |
| 09/27/2001 | US20010024115 Transient voltage recorder |
| 09/27/2001 | US20010024114 Plasma density measuring method and apparatus, and plasma processing system using the same |
| 09/27/2001 | DE10013537A1 Verfahren zur Strommessung Method for current measurement |
| 09/26/2001 | EP1136828A2 Method for measuring current |
| 09/26/2001 | EP0960341B1 Current detector working in accordance with the compensation principle |
| 09/26/2001 | CN1314673A Sound synthetic system capable of obtaining serial electric sampling output |
| 09/26/2001 | CN1314595A 电流传感器 Current Sensors |
| 09/20/2001 | US20010022512 Dc/dc converter for suppressing effects of spike noise |
| 09/20/2001 | US20010022339 Probe signal outputting apparatus |
| 09/20/2001 | DE10012327A1 Current-measuring arrangement for semiconductor power switches, has resistor which detects and subsequently adds up the voltage drops within the leads and at a contact transition between leads and semiconductor component, respectively |
| 09/18/2001 | US6292760 Method and apparatus to measure non-coherent signals |
| 09/18/2001 | US6292717 Energy information device and graphical display for a circuit breaker |
| 09/18/2001 | CA2217278C Test-point mounted fault indicator having immunity to fault currents in adjacent conductors |
| 09/18/2001 | CA2217185C Fault indicator for use with load-break connector |
| 09/13/2001 | WO2001067117A2 Current transformer for a compensating current sensor |
| 09/12/2001 | EP1132744A2 Measuring device |
| 09/12/2001 | EP1131642A1 Method for determining an earth-faulted branch |
| 09/12/2001 | CN2447980Y Intelligent current transmission controller |
| 09/12/2001 | CN2447795Y Digital instrument with charging and voltage booster circuit |
| 09/11/2001 | US6289267 Graphical energy information display system having a menu for user selection of energy related information for an AC load control device |
| 09/11/2001 | US6288597 Temperature sensing circuit for voltage drive type semiconductor device and temperature sensing method therefore, and drive-device and voltage drive type semiconductor device using the same |
| 09/11/2001 | US6288527 Two-dimensional sensor using laps for measuring cell activity |
| 09/06/2001 | US20010020283 Method and apparatus for sampling a power supply current of an integrated circuit, and storage medium onto which is recorded a control program therefor |
| 09/06/2001 | US20010020219 Energy efficiency measuring system and reporting methods |
| 09/06/2001 | US20010019274 Current detecting circuit and current detecting method |
| 09/05/2001 | EP1130405A1 Battery voltage monitor method |
| 09/05/2001 | EP1129360A2 Fiber optic current sensor having rotation immunity |
| 09/05/2001 | EP1129359A1 Apparatus and method for remote current sensing |
| 09/05/2001 | CN2446705Y Overcurrent protector of general distribution rack line bank |
| 09/05/2001 | CN2446523Y Earphone type multifunctional test pencil |
| 09/05/2001 | CN1311443A Band-gas voltage comparator used for low voltage testing circuit |
| 09/05/2001 | CN1311442A Monitoring signal output circuit, batteries and battery voltage monitoring circuit and method therefor |
| 09/05/2001 | CN1070664C Receiving system having a large dynamic range |
| 09/04/2001 | US6285719 Digital phase sensitive rectification of AC driven transducer signals |
| 09/04/2001 | US6285206 Comparator circuit |
| 09/04/2001 | US6285191 Measurement of current in a vehicle using battery cable as a shunt |
| 09/04/2001 | CA2248735C Voltage measurement instrument having transient overvoltage input protection |
| 08/29/2001 | EP1127279A1 Low cost electrical circuit breaker locater with passive transmitter and receiver |
| 08/29/2001 | CN1310072A Plasma arc welding 'small hole' detecting device and method |
| 08/28/2001 | US6281716 Potential detect circuit for detecting whether output potential of potential generation circuit has arrived at target potential or not |
| 08/28/2001 | US6281686 Nonintrusive power and continuity testing tools |
| 08/28/2001 | US6281673 Low error, switchable measurement lead detect circuit |
| 08/28/2001 | US6281670 Two-dimensional sensor having photoconductive layer for measuring cell activity |
| 08/23/2001 | WO2001061367A1 Device and method for measuring an electric field inside a plasma |
| 08/23/2001 | WO2001061365A1 Voltage sensor |
| 08/23/2001 | US20010015661 Device for the detection of a high voltage |
| 08/23/2001 | US20010015412 Electron beam measurement method and electron beam irradiation processing device |
| 08/23/2001 | DE10063102A1 Anordnung und Messung interner Spannungen in einer integrierten Halbleitervorrichtung Arrangement and measurement of internal stresses in an integrated semiconductor device |
| 08/22/2001 | EP1126352A1 Bandgap voltage comparator used as a low voltage detection circuit |
| 08/22/2001 | EP1126282A1 Battery voltage detector |
| 08/22/2001 | EP1126281A2 A current sensing circuit and telephone line interface card with enhanced current sensing circuit |
| 08/22/2001 | EP1125179A1 Current measuring techniques |
| 08/22/2001 | EP0803048B1 Method for electronic compensation of electrical disturbance signals and use thereof |
| 08/22/2001 | CN1309773A System for digital measurement of breakdown voltage of high-voltage samples |
| 08/22/2001 | CN1309772A Residual current detection device |
| 08/16/2001 | US20010013799 Circuit for voltage level detection |
| 08/16/2001 | US20010013771 Phase failure monitoring |
| 08/15/2001 | CN2443382Y DC High voltage tester |
| 08/15/2001 | CN1308728A Current detector and current measurement apparatus including such detector |
| 08/14/2001 | US6275075 Current comparator |
| 08/14/2001 | US6275022 Passive voltmeter with partially compressed voltage range display and housing with internal metallic coating |
| 08/09/2001 | US20010012984 Method and system for consolidating phase current samples |
| 08/09/2001 | US20010011888 Voltage detection stick |
| 08/09/2001 | US20010011881 Power storage device and method of measuring voltage of storage battery |
| 08/09/2001 | DE10001340A1 Verfahren zur Meßfehlerkompensation bei der Stromerfassung in einem Energiespeicher A method of measurement error in the current detection in an energy storage |
| 08/08/2001 | EP1122854A2 Power storage device and method of measuring voltage of storage battery |
| 08/08/2001 | CN1307240A High-accuracy high voltage detection method |
| 08/07/2001 | CA2333805A1 Power storage device and method of measuring voltage of storage battery |