| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 03/20/2008 | US20080068046 Sense amplifiers with high voltage swing |
| 03/20/2008 | US20080068045 Semiconductor integrated circuit with voltage drop detector |
| 03/20/2008 | US20080068000 Thermoelastic self-actuation in piezoresistive resonators |
| 03/19/2008 | EP1900088A1 Circuit arrangement for detecting zero crossings of an alternating voltage |
| 03/19/2008 | EP1900076A1 Automated precision alignment of data in a utility monitoring system |
| 03/19/2008 | CN201039069Y Self interference resistance execution control device based on dual DSP |
| 03/19/2008 | CN201039029Y A reverse conversion power supply for status tracking simulation control |
| 03/19/2008 | CN201038068Y Timer drive module |
| 03/19/2008 | CN201037857Y Device for testing output current of charger |
| 03/19/2008 | CN201037852Y High-voltage electronic voltage sensor |
| 03/19/2008 | CN101147181A Process control loop current verification |
| 03/19/2008 | CN101144850A Fuel cell voltage attenuation quick determination method and device |
| 03/19/2008 | CN101144840A Power network overvoltage signal frequency conversion sampling method |
| 03/19/2008 | CN101144839A Safe monitoring method facing high power contact and its device |
| 03/19/2008 | CN101144838A High precision transient impact peak value measuring gauge head |
| 03/19/2008 | CN101144837A Voltage detection circuit and control method |
| 03/19/2008 | CN101144836A Voltage detection circuit and control method |
| 03/19/2008 | CN100375903C Normal work detecting method for drum type motor |
| 03/18/2008 | US7345538 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 03/18/2008 | US7345512 Sense amplifier for low voltage high speed sensing |
| 03/13/2008 | US20080065337 Noise-Assisted Data Analysis Method, System and Program Product Therefor |
| 03/13/2008 | US20080061841 Voltage Detecting Circuit and Battery Device Using Same |
| 03/13/2008 | US20080061796 Signal detecting apparatus and signal detecting system |
| 03/13/2008 | US20080061762 Remote Continuity and Cable Identifier and Polarity Checker System and Method |
| 03/13/2008 | DE102006041266A1 Three-phase electric motor`s phase current measuring method for e.g. service robot, involves effecting offset-adjustment process that involves detection of signal processing path-offset at time point as detection of current measuring value |
| 03/13/2008 | DE102006039546A1 Chip`s i.e. control-integrated circuit, reliability determining method for e.g. airbag, involves determining measured variable within application environment of chip, and emitting signal if variable does not correspond to condition |
| 03/13/2008 | DE102006039413A1 Messvorrichtung zur Messung des Ausgangsstroms einer getakteten Halbbrückenschaltung Measuring device for measuring the output current of a switched-mode half-bridge circuit |
| 03/13/2008 | DE102006039411A1 Messvorrichtung zur Messung eines elektrischen Stroms Measuring device for measuring an electric current |
| 03/12/2008 | EP1898225A1 System and method for detecting leak current |
| 03/12/2008 | CN201035126Y Digital generator voltmeter with oil mass measurement |
| 03/12/2008 | CN201035095Y LCD alternating current voltage and current double display meter |
| 03/12/2008 | CN201035094Y Insulation protection apparatus pressure test device |
| 03/12/2008 | CN201035093Y Portable high-pressure electric shocking prevention detecting alarming device |
| 03/12/2008 | CN201035092Y Freely telescopic clectroscope |
| 03/12/2008 | CN201035091Y Output electric voltage status indication circuit used for electric power chip |
| 03/12/2008 | CN201035090Y Baffle type leaky liquid detecting machine |
| 03/12/2008 | CN201035089Y Hinged joint type leaky liquid detecting machine |
| 03/12/2008 | CN201035088Y Device for testing main changing casing tube CT polar |
| 03/12/2008 | CN201035087Y Measurement mechanism for residual current |
| 03/12/2008 | CN201035086Y Voltage measurement instrument |
| 03/12/2008 | CN201035085Y Voltage measurement device with High distinguishability |
| 03/12/2008 | CN201035084Y Voltage measurement device with wide measured range |
| 03/12/2008 | CN201035083Y Voltage measurement instrument with multi-range high distinguishability |
| 03/12/2008 | CN201035082Y Voltage measurement instrument with 0.1 [Mu]v distinguishability |
| 03/12/2008 | CN201035081Y Overcoming variation influencing voltage measurement instrument |
| 03/12/2008 | CN201035080Y Novel voltage measurement device |
| 03/12/2008 | CN201035079Y Luo coil great current integrated intelligent detector |
| 03/12/2008 | CN201035078Y Wireless synchronizing current electric voltage sensor |
| 03/12/2008 | CN201035077Y Sensing device used for monitoring oil well oil pumping machine stroke frequency |
| 03/12/2008 | CN201035076Y Multiple loops multifunctional electric power synthetic communication instrument |
| 03/12/2008 | CN201035075Y EDA9133 synthetic electric power monitoring instrument |
| 03/12/2008 | CN201035074Y Galvanometers |
| 03/12/2008 | CN201035070Y Potential difference meter with three measurement disks |
| 03/12/2008 | CN201035069Y Four-range portable potential difference meter |
| 03/12/2008 | CN201035068Y Double range potential difference meter |
| 03/12/2008 | CN201035067Y Three range portable potential difference meter |
| 03/12/2008 | CN201035066Y Double range portable potential difference meter |
| 03/12/2008 | CN201035063Y High-pressure side observe and control and transmission equipment |
| 03/12/2008 | CN201035060Y Neon tube |
| 03/12/2008 | CN201035059Y High-pressure signal generating device |
| 03/12/2008 | CN201035058Y Three mixed mode high-pressure signal generating device |
| 03/12/2008 | CN201035056Y AC electrical artificer meter |
| 03/12/2008 | CN201034915Y Gem hole direct current voltage testing apparatus in blood corpuscle calculating instrument |
| 03/12/2008 | CN101140317A Assembled battery total voltage detection and leak detection apparatus |
| 03/12/2008 | CN101140309A Detecting method of collector rail power supply quality |
| 03/12/2008 | CN101140302A Detecting device of battery voltage reference position and detecting method thereof |
| 03/12/2008 | CN101140301A Zero waiting current accurate excess voltage comparators |
| 03/12/2008 | CN100374867C Electro optical voltage sensor used for high voltage |
| 03/11/2008 | US7342400 Method and apparatus for measuring employing main and remote units |
| 03/11/2008 | US7342391 Power supply device and switching power supply device |
| 03/06/2008 | WO2008026276A1 Zero-phase current detecting apparatus |
| 03/06/2008 | US20080054898 Device and method for measuring a current flowing in an electrical conductor |
| 03/06/2008 | US20080054882 Self-test probe design & method for non-contact voltage detectors |
| 03/06/2008 | US20080054881 Dc Current Sensor |
| 03/06/2008 | US20080054880 Measurement device, method, program, and recording medium |
| 03/06/2008 | US20080054879 Components and methods for use in electro-optic displays |
| 03/06/2008 | US20080054877 Circuit for measuring current in a nand flash memory |
| 03/06/2008 | DE102006040737A1 Electromagnetic valve output stage shunt recognizing device for motor vehicle`s brake circuit, has test pad arranged parallel to output stage-transitor to adjust current flow via coil, and comprising voltage comparator to measure variables |
| 03/05/2008 | EP1472548B1 Switching circuit system, electrochemical sensor, sensor system, and method for processing a current signal made available via a sensor electrode |
| 03/05/2008 | CN201032485Y High-voltage divider for electric power measurement |
| 03/05/2008 | CN101137074A Modularized equipment, management module and managed module |
| 03/05/2008 | CN101135723A Universal electric power mutual-inductor verify device |
| 03/05/2008 | CN101135716A Method and apparatus for measuring leakage current |
| 03/05/2008 | CN101135707A Analysis method for electrical characteristic of parallel connection and parallel-serial connected piezoelectric voltage transformer |
| 03/05/2008 | CN101135703A On-line measurement method of AC motor stator winding leakage current |
| 03/05/2008 | CN101135702A Impulse current measurement mechanism based on flexible Luo-coil |
| 03/05/2008 | CN101135698A Active wheel speed sensor tester |
| 03/05/2008 | CN100373163C Ink cartridge detection system and method |
| 03/04/2008 | US7340365 Method and apparatus for verifying the operation of a plurality of test system instruments |
| 03/04/2008 | US7339487 Structure of meter |
| 03/04/2008 | US7339414 Method and circuit arrangement for monitoring the mode of operation of one or more load circuits, especially of a domestic appliance |
| 03/04/2008 | US7338683 Superconductor fabrication processes |
| 02/28/2008 | WO2008003898A3 Device for measuring parameters of an electrical power supply |
| 02/28/2008 | US20080052016 System And Method For Managing Fault In A Power System |
| 02/28/2008 | US20080050645 Cell controller, battery module and power supply system |
| 02/28/2008 | US20080049403 Combination current sensor and relay |
| 02/28/2008 | US20080048655 Device and method for measuring a current flowing in an electrical conductor |
| 02/28/2008 | US20080048645 Measuring Device for Measuring an Electrical Current |
| 02/28/2008 | US20080048644 Current Mode Analog-to-Digital Converter |
| 02/28/2008 | US20080048642 Current sensor |