| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 04/16/2008 | CN201047861Y Automatic alarm of highway for preventing continuous rear collision |
| 04/16/2008 | CN201047860Y Power converter |
| 04/16/2008 | CN201047859Y Full optical fiber reflection type great current optical current mutual inductor |
| 04/16/2008 | CN101163979A Test prepared integrated circuit with an internal power supply domain |
| 04/16/2008 | CN101162543A Perimeter defencealarm |
| 04/16/2008 | CN101162255A Method for testing CT yarn cutting through estimating out-of-balance current variation |
| 04/16/2008 | CN101162243A Split stream conducting wire testing apparatus and testing method thereof |
| 04/16/2008 | CN101162242A Method for testing direct current by quadrature transformer |
| 04/16/2008 | CN101162169A Simulated electronic scale detecting analyzer |
| 04/16/2008 | CN100382423C Technique for measuring temperature and current via a MOSFET of a synchronous buck voltage converter |
| 04/16/2008 | CN100382419C Voltage detection circuit and internal voltage generation circuit using same |
| 04/16/2008 | CN100381826C Method for measuring power cable equipment live or not |
| 04/15/2008 | US7359171 Current limiting circuit and output circuit including the same |
| 04/15/2008 | US7358778 Voltage detection circuit, semiconductor device, method for controlling voltage detection circuit |
| 04/15/2008 | US7358776 Signal detection circuit and signal detection method |
| 04/15/2008 | US7358743 Accumulated current counter and method thereof |
| 04/10/2008 | WO2007109156A3 Site analysis methodology and device for testing electric power |
| 04/10/2008 | US20080084217 System and method to measure series-connected cell voltages using a flying capacitor |
| 04/10/2008 | US20080084201 Method and apparatus for AC integrated current sensor |
| 04/10/2008 | US20080084200 Method and apparatus for DC integrated current sensor |
| 04/10/2008 | DE102006046137A1 Batteriesensoreinheit Battery sensor unit |
| 04/10/2008 | DE102006024357A1 Verfahren und Einrichtung zur Bestimmung der elektrischen Belastbarkeit von Freileitungen mittels Temperaturmessung Method and apparatus for determining the electrical loadability of power lines by means of temperature measurement |
| 04/09/2008 | EP1664804B1 Method and device for measuring voltage |
| 04/09/2008 | CN201045623Y Accumulator electric engine explosion-proof monitoring controller for mining |
| 04/09/2008 | CN201045620Y Residual current detection probe |
| 04/09/2008 | CN101159373A Optical fiber longitudinal differential protecting equipment based on multiple terminals self-adapting sample-taking synchronisation process |
| 04/09/2008 | CN101158712A Measurement mechanism and measurement method of ferroelectric materials electric hysteresis loop wire |
| 04/09/2008 | CN101158701A High voltage system electric voltage and insulaiton measurement circuit |
| 04/08/2008 | US7356774 Grouping components of a measurement system |
| 04/08/2008 | US7355826 Power supply apparatus capable of detecting abnormality of current flowing through drive circuit |
| 04/08/2008 | US7355470 Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
| 04/08/2008 | US7355456 Wide linear range peak detector |
| 04/03/2008 | WO2008039131A1 Method and device for monitoring a system |
| 04/03/2008 | WO2008037166A1 A method and system for acquiring an ac voltage |
| 04/03/2008 | US20080079472 Over driver control signal generator in semiconductor memory device |
| 04/03/2008 | US20080079416 Voltage detecting apparatus |
| 04/03/2008 | US20080079415 Device and method for determining the intensity of current |
| 04/03/2008 | US20080079404 Voltage detecting apparatus |
| 04/03/2008 | DE19616412B4 Vorrichtung zum Erfassen einer physikalischen Größe A device for detecting a physical quantity |
| 04/03/2008 | DE102007046054A1 Current i.e. alternating current, measuring device i.e. Rogowski-transformer, has inner coil traversing center of outer coil and wound around one of discrete substrate layers, and Rogowski coil provided on printed circuit board |
| 04/03/2008 | DE102007039855A1 Verfahren und Schaltung zum Bestimmen des maximalen, von einem Elektromotor aufgenommenen Stroms Method and circuit for determining the maximum, recorded by an electric motor current |
| 04/03/2008 | DE102006043419A1 On-board electrical system`s quiescent current determining method for automobile, involves forming measuring unit for detecting current measuring values characterizing momentary quiescent current, and storing values in memory unit |
| 04/03/2008 | DE10112217B4 Verfahren und Vorrichtung zur Erfassung einer zum Ausgangsstrom einer einen Generator aufweisenden elektrischen Maschine proportionalen Größe Method and apparatus for detecting the output current of a generator having electrical machine proportional size |
| 04/02/2008 | EP1906516A1 Switching power supply unit and voltage detection circuit |
| 04/02/2008 | EP1906194A2 Magnetic current sensor |
| 04/02/2008 | EP1906191A2 Three-phase switching assembly and method for operating the switching assembly |
| 04/02/2008 | EP1905353A1 Cable monitoring apparatus |
| 04/02/2008 | EP1723717A4 Inductor-based current sensing |
| 04/02/2008 | EP1177453B1 Apparatus and method for electrical measurements on conductors |
| 04/02/2008 | CN201044442Y Walkie-talkie power supply |
| 04/02/2008 | CN201044212Y Switch and socket with current display equipment |
| 04/02/2008 | CN101156075A Device for supplying power to measuring sensors and transmitting a synchronous clock signal thereto |
| 04/02/2008 | CN101154808A Surge protector for implementing real-time working condition data storage |
| 04/02/2008 | CN101153888A Testing method for luminous parallel path of flexible printing circuit board |
| 04/02/2008 | CN101153881A Area voltage stability monitoring method based on synchronous phasor measurement |
| 04/02/2008 | CN101153880A Negative voltage detector |
| 04/02/2008 | CN101153879A Multiplex three-phase alternating current sampling system and implementing method thereof |
| 04/02/2008 | CN101153791A System for clearance measurement and method of operating the same |
| 04/02/2008 | CN100378462C Multiphase digital synchronously sampling photoelectric current mutual inductor and its measuring method |
| 04/02/2008 | CN100378453C Apparatus for measuring biologic electric impedance of living body |
| 04/01/2008 | US7353124 Device and method for voltage regulator with low standby current |
| 04/01/2008 | US7353123 Leakage current or resistance measurement method, and monitoring apparatus and monitoring system of the same |
| 04/01/2008 | US7352215 High speed latch comparators |
| 04/01/2008 | US7352214 System and method for clock detection with glitch rejection |
| 04/01/2008 | US7352193 Voltage-impressed current measuring apparatus and current buffers with switches used therefor |
| 04/01/2008 | US7352164 Device for measuring an electric current |
| 03/27/2008 | US20080077340 Method, apparatus, and system for power source failure prediction |
| 03/27/2008 | US20080074182 Device and method including current measurement and/or amplification |
| 03/27/2008 | US20080074098 Device, system and method for a sensing electrical circuit |
| 03/27/2008 | US20080074097 Device for automatic detection of battery polarity |
| 03/27/2008 | DE112006000544T5 Potentialkomparator Potentialkomparator |
| 03/27/2008 | DE102006044008A1 Voltage testing arrangement, has resistors together forming voltage divider for measuring input of microcontroller, and NPN transistor with base connected with output through divider, where control output of microcontroller is switched off |
| 03/27/2008 | DE102006042181A1 Radiographic testing device i.e. positron emission tomography device for receiving detailed information of object i.e. cancer cells, has information processing unit determining distribution of radioactive isotope in object |
| 03/27/2008 | DE102004015269B4 Integrierte Schaltung zur Ermittelung einer Spannung An integrated circuit for determining a voltage |
| 03/26/2008 | EP1903836A1 Circuit configuration for monitoring the load current of the illumination device of a motor vehicle |
| 03/26/2008 | EP1903652A2 Method and control to determine the maximum current absorbed by an electric motor |
| 03/26/2008 | EP1247304A4 Shunt resistance device for monitoring battery state of charge |
| 03/26/2008 | CN201041881Y A power display jack |
| 03/26/2008 | CN201041586Y A thick film circuit for monitoring cable header voltage and instrument temperature |
| 03/26/2008 | CN201041574Y Three-phase current recording and balance analyzer |
| 03/26/2008 | CN201041042Y N electrode dynamic selection device |
| 03/26/2008 | CN101149889A Display signal detecting device and method |
| 03/26/2008 | CN101149416A Power cable insulation state monitoring and life span management system |
| 03/26/2008 | CN101149409A 天线测试方法 Antenna Test Methods |
| 03/26/2008 | CN101149408A T-shaped transmission line zero-sequence resistance parameter live line measurement method and device |
| 03/26/2008 | CN101149407A Method and device for power frequency inference source live line measurement for mutual inductance line zero-sequence impedance parameter |
| 03/26/2008 | CN101149403A Method for sensing and measuring current through electric-thermal conversion and dedicated electric-thermal conversion sensor |
| 03/26/2008 | CN101149402A Electric current detector |
| 03/26/2008 | CN101149401A Three state polarization detection method for eliminating linear birefringence influence of optical current transformer |
| 03/26/2008 | CN101149400A Transmission line lightning stroke on-line monitoring system |
| 03/26/2008 | CN101149310A Automobile electric chair noise and motor current detection device |
| 03/26/2008 | CN101149278A Automobile instrument integral detection method |
| 03/26/2008 | CN101149277A Automobile instrument integral detection method |
| 03/25/2008 | US7348910 Reference module apparatus and method therefor |
| 03/25/2008 | US7348807 Electric circuit for providing a selection signal |
| 03/25/2008 | US7348568 Electron beam diagnostic for profiling high power beams |
| 03/20/2008 | WO2008032940A1 Peak detector |
| 03/20/2008 | WO2008031364A1 Method for sampling a current or voltage profile and for forming sampling values, in particular for use in protection and control devices for energy transmission systems |
| 03/20/2008 | US20080071486 Semiconductor device with its test time reduced and a test method therefor |
| 03/20/2008 | US20080071485 Apparatus for measuring average power consumption of computer system |