| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 12/10/2008 | CN101322309A Motor load monitoring unit |
| 12/10/2008 | CN101320080A Apparatuses and methods for detecting power source |
| 12/10/2008 | CN101320068A Nano-second electrostatic discharge current experiment equipment based on sheet type piezoresistor |
| 12/10/2008 | CN101320059A Device and method for high voltage current measurement |
| 12/10/2008 | CN101320058A Intelligent light emission/receiving control device of thunder and lightning test equipment of overvoltage protector |
| 12/10/2008 | CN101320057A Electric voltage allowance test device |
| 12/10/2008 | CN101320056A Current detecting device |
| 12/10/2008 | CN101319957A On-line automatic testing method and system for beam vibration fatigue reliability of micro electro-mechanical systems |
| 12/10/2008 | CN100442609C Power line regulator with monitoring voltage and current amplitudes |
| 12/09/2008 | US7463309 Data slicer for generating a reference voltage |
| 12/09/2008 | US7463074 Integrated circuit and method for generating a ready signal |
| 12/09/2008 | US7463015 Time shifting signal acquisition probe system |
| 12/04/2008 | WO2008146445A1 Power failure detection circuit, power failure detection method, and power supply system |
| 12/04/2008 | US20080297138 Current sensor |
| 12/04/2008 | US20080297137 Universal, wireless, nano-optical voltmeters |
| 12/04/2008 | US20080297136 System and method to detect, in a vehicle, blockage of an airflow passage to a power storage unit |
| 12/03/2008 | EP1996953A1 Measuring device and measuring method for measuring the peak envelope power and the average power |
| 12/03/2008 | CN201159937Y Non-line voltage testing device for accumulators |
| 12/03/2008 | CN201159747Y Inductor current sensing circuit for switch power source |
| 12/03/2008 | CN201159746Y Current detection circuit |
| 12/03/2008 | CN201159745Y Circuit element voltage measurement device |
| 12/03/2008 | CN201159744Y Mixed power detection apparatus |
| 12/03/2008 | CN101317097A Comparator circuit |
| 12/03/2008 | CN101317096A Out-of-line measurement of a current flowing through a load |
| 12/03/2008 | CN101316079A DC flux sampling method and sample circuit for inversion system output signal |
| 12/03/2008 | CN101316050A Method and device for monitoring running state of transforming station direct current system |
| 12/03/2008 | CN101315397A Amplitude phase measuring method |
| 12/03/2008 | CN100440684C Method and apparatus for monitoring UPS power sources |
| 12/03/2008 | CN100439931C Electro-optical detector capable of calibrating voltage |
| 12/03/2008 | CN100439927C Indirect measuring method for electric network capacitance current |
| 12/02/2008 | US7459901 Voltage presence indication device and electrical apparatus comprising such an indicator |
| 12/02/2008 | US7459897 Terminator circuit, test apparatus, test head, and communication device |
| 11/27/2008 | WO2008143895A2 Rf detector with crest factor measurement |
| 11/27/2008 | WO2008143520A1 Method and apparatus for monitoring generation and transmission of electrical power |
| 11/27/2008 | WO2008142812A1 Level meter device and sensor |
| 11/27/2008 | US20080290905 Peak or Zero Current Comparator |
| 11/27/2008 | US20080290857 Electric current sensor |
| 11/27/2008 | DE102005062728B4 Verfahren zur Bestimmung einer dreidimensionalen Stromdichtenverteilung in einem Elektrolytbad A method for determining a three-dimensional current density distribution in an electrolytic bath |
| 11/27/2008 | DE10001340B4 Verfahren zur Meßfehlerkompensation bei der Stromerfassung in einem Energiespeicher A method of measurement error in the current detection in an energy storage |
| 11/26/2008 | EP1994453A2 Underground monitoring system and method |
| 11/26/2008 | CN201156730Y DC voltage collecting apparatus |
| 11/26/2008 | CN201156083Y Circular magnetic field probe head |
| 11/26/2008 | CN201156082Y Circular magnetic field probe head |
| 11/26/2008 | CN201156065Y Comprehensive test instrument of on-line monitoring instrument for lightning arrester |
| 11/26/2008 | CN201156057Y Zero-crossing detection circuit |
| 11/26/2008 | CN201156056Y Clip-on meter for current on-line measurement of high voltage and high amplitude line |
| 11/26/2008 | CN201156055Y Sample circuit construction for main voltage and electric bridge voltage |
| 11/26/2008 | CN100437133C Low voltage replacement function detecting circuit |
| 11/26/2008 | CN100437127C Detector of differential threshold voltage |
| 11/26/2008 | CN100437126C Voltage detector of universal serial bus interface |
| 11/26/2008 | CN100437125C 电流检测电路以及电流检测方法 Current detection circuit and a current detection methods |
| 11/26/2008 | CN100437123C A method and a device for voltage measurement in a high-voltage conductor |
| 11/20/2008 | WO2008139178A1 Current measuring apparatus for use with electric motors |
| 11/20/2008 | US20080284411 Method and Circuit Provided for Measuring Very Low Intensity of Electric Current |
| 11/20/2008 | US20080284410 Clamp-on current and voltage module for a power monitoring system |
| 11/19/2008 | CN201152886Y Dot-matrix Hall current sensor |
| 11/19/2008 | CN201152885Y Non-contact current measuring apparatus |
| 11/19/2008 | CN201152884Y Tobacco curing barn air door location detection circuit |
| 11/19/2008 | CN201152777Y Remote control preventing apparatus for electric measurement type electronic weighing instrument |
| 11/19/2008 | CN101309045A Equalizer circuit of electric power indication, auxiliary power start and electrolytic capacitor |
| 11/19/2008 | CN101308187A Method and terminal for detecting earphones plug inserting to position |
| 11/19/2008 | CN101308172A Current integration -type power detection device and power checking module |
| 11/19/2008 | CN101308171A PCI bus electric energy quality transient affair collection card and its collection method |
| 11/19/2008 | CN101308170A Active electric current test technology |
| 11/19/2008 | CN100434924C Overcurrent detection method and detection circuit |
| 11/19/2008 | CN100434923C Method for detecting paper shredder blocking and rotation and paper shredder having blocking and rotation detector |
| 11/19/2008 | CN100434904C Method for computing concentration of liquid fuel battery |
| 11/18/2008 | US7453253 Locating device and corresponding method |
| 11/13/2008 | WO2008137718A1 Variable power and response time brown-out-reset circuit |
| 11/13/2008 | WO2008137651A2 Adaptive filters for fiber optic sensors |
| 11/13/2008 | WO2008135499A1 Battery sensor and method for the detection of battery-specific parameters |
| 11/13/2008 | WO2008076593A3 Method and apparatus to evaluate transient characteristics in an electrical power system |
| 11/13/2008 | US20080280575 Transmitter emission control |
| 11/13/2008 | US20080279026 Signal sensing circuit and semiconductor memory device using the same |
| 11/13/2008 | US20080278145 Process measurement instrument adapted for wireless communication |
| 11/13/2008 | DE102007022208A1 Multiple socket e.g. master-slave-socket strip, for connection with sockets at power supply line, has switch unit for changing wire of power supply line, and display unit for indicating whether certain phase suits to switched wire |
| 11/12/2008 | EP1990909A2 Control methodologies for a motor control module |
| 11/12/2008 | EP1990645A1 Abnormality judgment device and abnormality judgment method of power supply unit |
| 11/12/2008 | EP1990644A2 Calibration apparatus, testing apparatus, and calibration method |
| 11/12/2008 | CN201150035Y Resistance-capacitance step-down power supply circuit with zero crossing detection function |
| 11/12/2008 | CN201149908Y Ground rod with electroscope |
| 11/12/2008 | CN201149820Y Switch device with off mark |
| 11/12/2008 | CN201149605Y Passive digital direct-current power supply voltmeter |
| 11/12/2008 | CN201149604Y 电流传感器 Current Sensors |
| 11/12/2008 | CN201149603Y Autofocus type optical current transformer |
| 11/12/2008 | CN201149602Y Autofocus type optical current transformer |
| 11/12/2008 | CN101305517A High speed and low power SRAM macro architecture and method |
| 11/12/2008 | CN101303377A Parameter acquisition method of discharging radiation pulse |
| 11/12/2008 | CN101303376A Method and apparatus for compensating voltage zero-cross detection |
| 11/12/2008 | CN101303375A Method for detecting high voltage grounding small current |
| 11/12/2008 | CN101303374A Automatic voltage regulation controller and method |
| 11/12/2008 | CN101303373A Method for manufacturing optical fiber current sensor sensitivity coil |
| 11/12/2008 | CN100433878C Wired connection method for measuring time period of CDMA mobile terminal in stood by state |
| 11/12/2008 | CN100433282C Power type light-emitting diode device and its manufacturing method |
| 11/12/2008 | CN100432683C Fault arc detection method and protection circuit thereof |
| 11/12/2008 | CN100432680C Forcipated mutual-inductor, forcipated ammeter and verification method of forcipated ammeter |
| 11/11/2008 | US7449922 Sensing circuitry and method of detecting a change in voltage on at least one input line |
| 11/11/2008 | US7449892 Stray voltage detecting |
| 11/11/2008 | US7449875 Device for automatic detection of battery polarity |
| 11/06/2008 | WO2008131497A1 An apparatus for sensing an electrical condition |