| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 05/23/2007 | CN2904422Y Dynamic load monitoring controller |
| 05/23/2007 | CN2903997Y 闪灯集成电路测试仪 Flash IC tester |
| 05/23/2007 | CN2903994Y Ammeter turn-on device |
| 05/23/2007 | CN1967958A Waveform sine principle based transformer excitation flow recognition method |
| 05/23/2007 | CN1967281A Method and apparatus for measuring critical current uniformity of practical length YBCO high-temperature superconductive material |
| 05/23/2007 | CN1967279A Circuit for measuring synchronized sampler of flying capacitance |
| 05/23/2007 | CN1967268A Indirect induction type current-sensing device |
| 05/22/2007 | US7222266 Error-examining method for monitor circuit |
| 05/22/2007 | US7222032 Laser diode management apparatus and method |
| 05/22/2007 | US7221210 Fuse sense circuit |
| 05/22/2007 | US7221174 Probe holder for testing of a test device |
| 05/22/2007 | US7221142 Measuring devices |
| 05/22/2007 | US7221140 Circuit, method and system for providing one or more phase voltages from input voltages |
| 05/22/2007 | US7221138 Method and apparatus for measuring charge pump output current |
| 05/22/2007 | US7221136 Sondes for locating underground pipes and conduits |
| 05/18/2007 | WO2007056673A2 Wide-bandwidth spectrum analysis of transient signals using a real-time spectrum analyzer |
| 05/17/2007 | US20070110204 Sampling circuit apparatus and method |
| 05/17/2007 | US20070109042 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 05/17/2007 | US20070108984 Ionization test for electrical verification |
| 05/16/2007 | CN2901335Y Self detector for current mutual inductor fault |
| 05/16/2007 | CN2901331Y Connecting type power source leakage current detector of human body analogue impedance module |
| 05/16/2007 | CN2901327Y Color changing flash test pen |
| 05/16/2007 | CN2901326Y Anti-theft alarm for distribution area |
| 05/16/2007 | CN1965237A Detector of differential threshold voltage |
| 05/16/2007 | CN1963556A Apparatus for integrality checking proportion of cryo-current comparator and the method thereof |
| 05/16/2007 | CN1963540A Non-contact electronic voltage measuring apparatus without mutual-inductor |
| 05/16/2007 | CN1963539A Optical current transformer and method for measuring current with the same |
| 05/16/2007 | CN1963538A Shunt circuit linearity insulating circuit apparatus |
| 05/16/2007 | CN1963537A An eddy-current screen filter and its design method |
| 05/16/2007 | CN1963536A An air pressure filter, its design method and application |
| 05/16/2007 | CN1963532A Circuit and method for preventing shunt running in electric energy measurement |
| 05/16/2007 | CN1316256C Electric network geomagnetic induction current monitoring method and apparatus |
| 05/16/2007 | CN1316254C Current sensor |
| 05/15/2007 | US7218695 Method and device for acquiring an estimated value dependent on the maximum of a single-frequency signal |
| 05/15/2007 | US7218092 Magnetic bridge type current sensor, magnetic bridge type current detecting method, and magnetic bridge for use in that sensor and detecting method |
| 05/10/2007 | WO2007051936A1 Measuring a current supplied by a rotating electric machine such as an alternator |
| 05/10/2007 | WO2007024734A9 Ultrawideband antenna for operation in tissue |
| 05/10/2007 | WO2005065090A3 Techniques for building-scale electrostatic tomography |
| 05/10/2007 | US20070103174 Direct current test apparatus |
| 05/10/2007 | US20070103163 Inverter system |
| 05/10/2007 | US20070103142 Assembled capacitor polarity automatic inspecting method and system |
| 05/10/2007 | US20070103094 Inverter system |
| 05/10/2007 | DE10017374B4 Magnetische Koppeleinrichtung und deren Verwendung Magnetic coupling device and the use thereof |
| 05/09/2007 | EP1782083A1 Indicator of presence of ac voltage |
| 05/09/2007 | EP1782082A2 Comparator feedback peak detector |
| 05/09/2007 | CN2899319Y Cell phone with electric pen function |
| 05/09/2007 | CN2898847Y Para-position point searching device |
| 05/09/2007 | CN2898842Y Smoothing membrane-surface potential determiner |
| 05/09/2007 | CN2898841Y Microcomputer integrated electroprobe |
| 05/09/2007 | CN2897562Y Screw driver |
| 05/09/2007 | CN2897092Y Coloring indication light circuit of electric kettle |
| 05/09/2007 | CN1960392A Handset with function of electroprobe |
| 05/09/2007 | CN1959419A Current measurement instrument |
| 05/09/2007 | CN1315261C Comparator circuit and power supply circuit |
| 05/08/2007 | US7216043 Push communications architecture for intelligent electronic devices |
| 05/08/2007 | US7215370 Pseudo-BJT based retinal focal-plane sensing system |
| 05/08/2007 | US7215145 Comparator circuit and power supply circuit |
| 05/08/2007 | US7215109 Electric power usage and demand reporting system |
| 05/08/2007 | CA2380934C Current sensor |
| 05/03/2007 | WO2007050010A1 Sensor and system for sensing an electron beam |
| 05/03/2007 | WO2007049597A1 Current detection circuit |
| 05/03/2007 | WO2007049476A1 Testing apparatus and testing method |
| 05/03/2007 | WO2007048363A1 Method for generating a data record, and field device and system for detecting the quality of electrical power from a power supply system |
| 05/03/2007 | US20070096748 Current sensing circuit |
| 05/03/2007 | DE112005001308T5 Bi-direktionale Stromerkennung durch Überwachen der VS Spannung in einer Halb- oder Vollbrückenschaltung Bi-directional current detection by monitoring the voltage VS in a half or full bridge circuit |
| 05/03/2007 | DE102006035741A1 Method of determining the current density distribution in a stack of fuel cells using a magnetotomography process |
| 05/03/2007 | DE102005051848A1 Temperature compensating circuit for a resistance measuring structure integrated in a semiconductor body has further resistance structure to measure temperature-dependent compensating voltage |
| 05/03/2007 | DE102005050500A1 Device for determining the voltage of a fuel cell stack comprises a contact foil on which are arranged strip conductors having contact surface for electrically contacting with the electrode of a single cell assigned to the strip conductors |
| 05/03/2007 | DE102004014731B4 Mess-Schaltung für den Ausgang eines Leistungsverstärkers sowie ein die Mess-Schaltung umfassender Leistungsverstärker Measuring circuit for the output of a power amplifier and a measuring circuit comprehensive power amplifier |
| 05/02/2007 | EP1780881A1 Compensated current sensing circuit |
| 05/02/2007 | EP1779222A1 Sensor product for electric field sensing |
| 05/02/2007 | EP1779083A1 Fluid detection apparatus and kit, and method of installation thereof |
| 05/02/2007 | EP1636599B1 Potentiostatic circuit arrangement on a biosensor for digitisation of the measured current |
| 05/02/2007 | EP1344070B1 Method and device for monitoring the function of an output stage with pulse width modulation |
| 05/02/2007 | CN2896693Y Generator end three-phase-voltage monitoring symmetric output transmitter |
| 05/02/2007 | CN2896292Y Circuit for detecting external voltage |
| 05/02/2007 | CN2896291Y Single-chip signal sampling device without analog-digit converter |
| 05/02/2007 | CN1956334A Low voltage detection circuit |
| 05/02/2007 | CN1956305A Improvement of current inducing circuit |
| 05/02/2007 | CN1956286A Detection of islanding in power grids |
| 05/02/2007 | CN1956020A Automatic collector for cathode protection potential data at microconsumption station |
| 05/02/2007 | CN1313831C Signalling system |
| 05/01/2007 | US7212014 Stud sensor with floating head |
| 05/01/2007 | US7211994 Lightning and electro-magnetic pulse location and detection for the discovery of land line location |
| 04/26/2007 | WO2007045682A1 A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| 04/26/2007 | US20070093979 Computer device configuration system and method |
| 04/26/2007 | DE202007002642U1 Elektrische Zustandsanzeige bei maritimen Schaltapparaten Electrical switching status display on maritime equipment |
| 04/26/2007 | DE19910755B4 Lineare Strommeßschaltung für Motorsteuerung Linear current sensing circuit for motor control |
| 04/26/2007 | DE102006047707A1 Verfahren zur Messung eines Motorstromes A method of measuring a motor current |
| 04/26/2007 | DE102006044808A1 Halbleitervorrichtung Semiconductor device |
| 04/26/2007 | DE102006029190A1 Überstrom-Erfassungsvorrichtung Overcurrent detection device |
| 04/26/2007 | DE102005045753A1 Safety switching device for controlling e.g. three-phase motor, has microprocessor determining whether amplitude of analog signal lies outside of operating range, where microprocessor is component of safety device for controlling of drive |
| 04/26/2007 | CA2626569A1 A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| 04/25/2007 | EP1777672A1 Electrical energy storage unit on EDLC basis |
| 04/25/2007 | EP1777530A1 Method and arrangement for measuring inverter output currents |
| 04/25/2007 | EP1639376A4 System and method for acquiring voltages and measuring voltage into an electrical service using a non-active current transformer |
| 04/25/2007 | EP1597597B1 Method for measuring the current consumption of an electric radiator in a vehicle ventilation, heating or air conditioning system |
| 04/25/2007 | CN2894021Y Electric fire alarmer |
| 04/25/2007 | CN2893718Y Electric water heater control chip voltage limiting time-base circuit earthwire hot-line detection interface |
| 04/25/2007 | CN2893717Y Ove 7KV voltage transformer |