| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 10/20/1993 | CN1077539A Method of measure of voltage and/or intensity of field and sensor used for same |
| 10/19/1993 | US5254951 Circuit for measuring discharging and charging current of a battery providing offset/drift voltage for correcting amplifier output |
| 10/14/1993 | DE4226442C1 X=ray tube current measuring circuit - differentiates voltage drop across divider and subtracts from measuring resistance signal to obtain anode current and compensate supply cable capacitance. |
| 10/13/1993 | EP0565204A2 High voltage unit with measuring divider using resistors |
| 10/12/1993 | US5252913 Line sensor with corona shield |
| 10/06/1993 | EP0428601B1 System for measuring partial discharges |
| 10/05/1993 | US5250894 Current sensing system having electronic compensation circuits for conditioning the outputs of current sensors |
| 10/05/1993 | US5250893 Digital voltmeter |
| 09/29/1993 | EP0562989A1 Procedure and apparatus for measuring phase noise of sinusoidal signal generators |
| 09/28/1993 | US5248934 Method and apparatus for converting a conventional DC multimeter to an AC impedance meter |
| 09/23/1993 | DE4208365A1 Hand-held wideband HF voltage level measuring device - has LED's indicating employed measuring range and adapter suitable for all different measuring points |
| 09/22/1993 | EP0561717A1 Measuring combination with current sensor and power supply transformer |
| 09/21/1993 | US5247680 Apparatus for digitizing the setting of a potentiometer |
| 09/21/1993 | US5247258 System for measuring partial discharges |
| 09/21/1993 | US5247244 Electro-optic voltage measuring system with temperature compensation |
| 09/16/1993 | WO1993018411A1 Measuring range adapter |
| 09/15/1993 | EP0560513A2 Single balanced beam electrostatic voltmeter modulator |
| 09/15/1993 | CN1022137C Wireless loss monitoring method for low-voltage circuits |
| 09/14/1993 | US5245278 Device for the processing of a signal coming from a sensor with a derivative type of response |
| 09/14/1993 | US5245275 Electronic watthour meter |
| 09/08/1993 | EP0558702A1 Current sensor having a magnetic circuit with an air gap. |
| 09/08/1993 | CN2141897Y Super digital multitester |
| 09/07/1993 | US5243293 System utilizing optical current sensors for detecting fault location in substation |
| 09/07/1993 | US5243275 Input protecting mechanism for measuring device |
| 09/02/1993 | WO1993017347A1 Method and apparatus for measuring voltage |
| 09/02/1993 | WO1993017346A1 Process and sensor for measuring electric voltages and/or electric field intensities |
| 08/31/1993 | US5241263 Electric current detecting apparatus |
| 08/31/1993 | CA1321724C Optical fiber-containing insulators and producing process thereof |
| 08/26/1993 | DE4205509A1 Verfahren und sensor zum messen von elektrischen spannungen und/oder elektrischen feldstaerken Method and sensor for measuring electrical voltages and / or electric field strengths |
| 08/25/1993 | CN1075551A Method and apparatus for measuring voltage |
| 08/19/1993 | WO1993016392A1 Meter cradle with wireless communication port |
| 08/19/1993 | DE4204515A1 Measurement of electric currents esp. in high and medium voltage supply mains - using Rogowski coil with measurements from coil digitised and integrated in computer unit which with over-supply of digital signals reduces signal paths |
| 08/18/1993 | EP0556099A1 Current sensor |
| 08/18/1993 | EP0555602A1 Optical current measuring device in an installation with grounded metallic enclosure |
| 08/18/1993 | EP0464021B1 Measuring device with auxiliary electrode for a gas-insulated, encased high-voltage installation |
| 08/17/1993 | US5237265 Fiber optics arrangement for measuring the intensity of an electric current |
| 08/10/1993 | US5235224 Current detecting circuit using pulse transformer |
| 08/05/1993 | WO1993015410A1 Electric current measurement |
| 08/05/1993 | WO1993015383A1 Fiber optic electric and electromagnetic field sensor |
| 08/05/1993 | DE4302533A1 Single pole AC voltage detector - has plug electrode with twin conductors capacitively coupled to LED display module and internal battery to test all components |
| 08/05/1993 | CA2128735A1 Electric current measurement |
| 07/22/1993 | DE4201434A1 Measurement transducer at high voltage for metal encapsulated, gas insulated high voltage switching system - contains Peltier cooling element inside inner conductor for reduced operating temp. |
| 07/22/1993 | DE4201433A1 Measurement transducer at high voltage for metal encapsulated, gas insulated high voltage switching system - contains Peltier cooling element inside inner conductor for reduced operating temp. |
| 07/22/1993 | DE4201432A1 Current converter for excess or short circuit voltages - contains Peltier cooling element inside inner conductor for reduced operating temp. |
| 07/21/1993 | EP0552002A1 A breaker apparatus for connection between a power line and an external circuit, and a method of operation thereof |
| 07/21/1993 | CN1074561A A breaker apparatus for connection between a power line and an external circuit, and a method of operation thereof |
| 07/14/1993 | EP0551199A2 Electrical insulation and continuity tester |
| 07/13/1993 | US5227715 Apparatus for measuring electromagnetic field intensity using dual polarized light beams |
| 07/08/1993 | WO1993013429A1 Voltage detector |
| 07/08/1993 | WO1993013428A1 Current sensor |
| 06/24/1993 | WO1993012435A1 Optical voltage and electric field sensor based on the pockels effect |
| 06/24/1993 | DE4142342A1 Digital current measurement method - using inductive transducer with measurement current in primary coil, magnetic flux in core compensated by secondary current controlled by counter |
| 06/23/1993 | CN1073527A Multipurpose measurer |
| 06/17/1993 | DE4141039A1 Electrical measurement data determining unit esp. for integration in data processing system - has at least current and voltage measurement inputs which can be changed over and their respective input is connected with instrument transformer by switch |
| 06/16/1993 | EP0546453A1 Transducer for static electricity meters |
| 06/16/1993 | CN2136473Y Clamp-on tester |
| 06/15/1993 | US5220495 Arrangement and method for accurately sensing voltage of a high-impedance source and supplying power to a variable burden |
| 06/10/1993 | WO1993011607A1 Process and circuit for measuring particle fluxes |
| 06/09/1993 | EP0545647A1 Measuring apparatus |
| 06/09/1993 | DE4140112A1 Verfahren und schaltung zur messung von teilchenstroemen Method and circuit for measurement of particle flows |
| 06/09/1993 | DE4139855A1 Analogue multimeter for measuring voltage, current and resistance - has autoranging attenuator circuit and indicates selected measurement range |
| 06/09/1993 | CN1021135C Tension measuring circuit |
| 06/09/1993 | CN1021134C Current intensity transformer device for measuring variable electric current |
| 06/08/1993 | US5218291 Meter and meter driving system with indication fluctuation suppression and enhancement |
| 06/08/1993 | US5218290 Multi-function, multi-mode switch for an instrument |
| 06/02/1993 | EP0544548A1 A sparkplug voltage probe device in an internal combustion engine |
| 05/27/1993 | WO1993010462A1 High-voltage measurement device |
| 05/25/1993 | US5214595 Abnormality diagnosing system and method for a high voltage power apparatus |
| 05/25/1993 | US5214407 High performance current shunt |
| 05/25/1993 | US5214373 Zero phase voltage measuring device |
| 05/19/1993 | CN2133915Y Electronic compensator for voltage transformer |
| 05/19/1993 | CN2133845Y Synergism cylinder for neon tube display of test pencil |
| 05/19/1993 | CN1072266A Three-phase collected type optical current transformer |
| 05/18/1993 | US5212451 Single balanced beam electrostatic voltmeter modulator |
| 05/18/1993 | CA1317998C Electromagnetic contactor with lightweight wide range current transducer |
| 05/13/1993 | DE4137865A1 Hochspannungsmesseinrichtung High voltage measuring device |
| 05/12/1993 | EP0541139A2 Method of and device for the measurement of an electric signal in an electronic component |
| 05/12/1993 | CN2132993Y Unwersal watt-hour meter |
| 05/11/1993 | US5210800 Optical sensor and method for producing the same |
| 04/28/1993 | EP0539351A1 Device for indicating that a current passage occurred in the conductors of lightning protection equipment |
| 04/28/1993 | EP0539081A1 Current sensor system or a method for current detection |
| 04/28/1993 | EP0538658A1 Current sensor with integrated Hall effect device |
| 04/28/1993 | EP0538578A1 Compensation principle current sensor |
| 04/21/1993 | EP0537610A1 Three-phase optical current sensor in an airtight container |
| 04/21/1993 | EP0537144A1 Data encodement and reading method and apparatus. |
| 04/15/1993 | DE4133936A1 Indicator unit for displaying voltage condition of HV network - has dual signal input from independent capacitor couplings and logic evaluation of signals for self monitoring visual indication of state |
| 04/13/1993 | US5202812 Apparatus for detecting faults on power transmission lines |
| 04/13/1993 | US5202682 Data encodement and reading method and apparatus |
| 04/13/1993 | US5202629 Optical magnetic-field sensor having an integrally bonded magnetooptical element, polarizer, analyzer and substrate |
| 04/07/1993 | CN1070764A Current sensor comprising magnetic circuit with air gap |
| 04/06/1993 | US5200646 Protection of supply metering |
| 04/06/1993 | CA1315847C Harmonimeter, and methods of utilizing and constructing same |
| 04/01/1993 | WO1993006491A1 Current sensor having a magnetic circuit with an air gap |
| 03/23/1993 | US5196784 Isolated current monitoring circuit for measuring direct and high duty factor currents |
| 03/23/1993 | US5196695 Fiber-optic sensor having near-field and remote-field signals |
| 03/17/1993 | EP0532345A1 Multimeter having a clamp-on ammeter and an oscilloscope display |
| 03/16/1993 | US5194868 Dual slope integrating a/c converter |
| 03/16/1993 | US5194854 Multicolor logic device |
| 03/09/1993 | US5191956 Electronic method and circuit for analyzing analog signals |
| 03/04/1993 | DE4128989A1 Current sensor using compensation principle - has magnetic core coupled to secondary winding supplied with compensation current controlled via interrogation pulses |