| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 06/30/1993 | EP0548266A1 Electronic tester for assessing battery/cell capacity |
| 06/30/1993 | CN2137363Y Dc voltage isolated measuring device |
| 06/30/1993 | CN2137362Y Multifunctional detecting probe |
| 06/29/1993 | US5224007 Current window detection circuit |
| 06/29/1993 | US5223789 AC/DC current detecting method |
| 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 | EP0547960A1 Method and apparatus for measuring successive amplitude levels of signals received over a communication path |
| 06/23/1993 | EP0547813A1 Differential comparator with differential threshold for local area networks or the like |
| 06/23/1993 | EP0547228A1 Apparatus for measuring average value of impulsive signal |
| 06/23/1993 | EP0547199A1 High speed differential comparator |
| 06/23/1993 | CN2136994Y Detecting instrument for high-pressure chamber of copier |
| 06/23/1993 | CN1073529A Pen-type electronic voltmeter |
| 06/23/1993 | CN1021376C Adjustment circuit and method for solid-state electricity meter |
| 06/22/1993 | US5221894 Weld current sensor |
| 06/21/1993 | CA2085572A1 Device for evaluating the voltage supplied by a voltage source |
| 06/17/1993 | DE4239318A1 System for identifying application of supply voltage esp. for electronic circuit - has identifying unit connected to supply voltage lead for identifying application and interruption of supply voltage across supply voltage lead also signal prodn. unit |
| 06/16/1993 | CN2136474Y Test pencil with sound-and-light alarm |
| 06/15/1993 | US5220276 Crest factor measurement device |
| 06/10/1993 | WO1993011607A1 Process and circuit for measuring particle fluxes |
| 06/10/1993 | WO1993011409A1 Method and apparatus for positioning and biasing an electro-optic modulator of an electro-optic imaging system |
| 06/09/1993 | EP0545394A1 AC/DC transfer-technique for alternating electric values |
| 06/09/1993 | DE4211980C1 Current-voltage converter for measuring appts. - has parallel electronic circuit paths acting as voltage divider and regulated voltage divider with centre tap-offs providing positive and negative output voltage nodes |
| 06/09/1993 | DE4140112A1 Verfahren und schaltung zur messung von teilchenstroemen Method and circuit for measurement of particle flows |
| 06/09/1993 | DE4140043A1 Inductive load driving system esp. for IC engine control - measures current shortly after switch=on and immediately after switch=off and calculates effective value, e.g. by averaging |
| 06/09/1993 | CN1021135C Tension measuring circuit |
| 06/09/1993 | CN1021134C Current intensity transformer device for measuring variable electric current |
| 06/08/1993 | US5218433 Real time scanning device signal processing circuit including color signal and blanking signal generating circuits |
| 06/08/1993 | US5218311 Measuring device and method for its operational setting |
| 06/02/1993 | EP0544589A1 Device for measuring the real load rate of an electrical generator |
| 06/02/1993 | EP0544566A1 Source monitoring module for battery monitoring unit and battery equipped with the same |
| 06/02/1993 | EP0544143A2 Integrated comparator circuit |
| 06/02/1993 | EP0543877A1 Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage |
| 06/02/1993 | CN2135156Y Test pencil for electrician on automotive vehicle |
| 06/02/1993 | CN2135155Y 高压验电器 Pressure electroscope |
| 05/27/1993 | WO1993010463A1 A method of sensing the rms value of a waveform |
| 05/27/1993 | CA2083753A1 Device for measuring the actual rate of charge of a power generator |
| 05/26/1993 | CN2134745Y Multifunctional testing charger |
| 05/26/1993 | CN2134657Y Multipurpose test pencil |
| 05/26/1993 | CN2134656Y Mini-size active electroscope |
| 05/26/1993 | CN2134655Y Acoustooptic electroscope |
| 05/26/1993 | CN2134654Y Low voltage test pencil |
| 05/19/1993 | EP0541837A1 Detector circuit |
| 05/19/1993 | CN2133846Y Test pencil with light |
| 05/19/1993 | CN2133845Y Synergism cylinder for neon tube display of test pencil |
| 05/18/1993 | US5212374 Method and apparatus for positioning and biasing an electro-optic modulator of an electro-optic imaging system |
| 05/13/1993 | WO1993009599A2 Analog-to-digital converter and method of fabrication |
| 05/12/1993 | CN2133091Y Charger without polarity |
| 05/12/1993 | CN2132994Y Multifunction test pencil |
| 05/11/1993 | US5210800 Optical sensor and method for producing the same |
| 05/11/1993 | US5210527 Programmable spike detector |
| 05/11/1993 | US5210484 Lock-in amplifier |
| 05/05/1993 | CN2132345Y Integrated module voltage relay |
| 05/05/1993 | CN2132313Y Neutral breaking protective device for electrical appliance |
| 05/05/1993 | CN2132189Y Multifunction test pencil for leakproof protector |
| 05/05/1993 | CN2132187Y Multifunction detector for car circuit |
| 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 | CN2131110Y Gauging tool for determining portions of circuit failures in motor-vehicles |
| 04/21/1993 | EP0537144A1 Data encodement and reading method and apparatus. |
| 04/21/1993 | CN2130268Y Spark-grade split core gauge for DC. electric motor |
| 04/21/1993 | CN2130265Y Load storage energy electronic electricity test pen |
| 04/20/1993 | US5204631 System and method for automatic thresholding of signals in the presence of Gaussian noise |
| 04/15/1993 | WO1993007499A1 Synchronous-rectifying amplifier with the ability to blank out switching operations |
| 04/15/1993 | DE4233224A1 IC engine ion current detection circuit - uses selective masking to eliminate noise pulse component in circuit output signal |
| 04/15/1993 | DE4206195C1 AC voltage video signal level measurer - has circuit adding output signals of amplifier and supplying a=d converter assigned to evaluator for control e.g. register |
| 04/15/1993 | DE4133243A1 Synchrongleichrichtender verstaerker mit austastung der umschaltvorgaenge Synchronous Teaching verstaerker with blanking of the switchover |
| 04/14/1993 | EP0333711B1 Current detection device having an extended frequency range of response |
| 04/14/1993 | CN2129984Y 安全报警插头 Security alarm plug |
| 04/14/1993 | CN2129932Y Multifunction electric test pen |
| 04/13/1993 | US5202682 Data encodement and reading method and apparatus |
| 04/08/1993 | DE4232845A1 Misfire monitoring circuit for IC engine with elimination of false signals - applies voltage to firing chamber after firing to monitor ion current through burn and uses reference programme to eliminate spurious events |
| 04/08/1993 | DE4232208A1 Voltage peak counter for current supply or communications channel - has absorbers with different response voltages with discharge tubes and nonlinear resistances and signal counters at light receivers |
| 04/07/1993 | EP0535222A1 Digital battery capacity warning device |
| 04/06/1993 | US5200752 Integrating analog to digital converter run-up method and system |
| 04/01/1993 | WO1993006493A1 Method and apparatus for power measuring |
| 04/01/1993 | WO1993006492A1 Circuit arrangement to detect a voltage |
| 03/31/1993 | EP0534924A1 Dynamic power-on reset circuit |
| 03/31/1993 | EP0534702A1 Continuous monitoring electrostatic discharge system |
| 03/31/1993 | EP0318549B1 Test meters |
| 03/31/1993 | CN2129037Y 电源插头 Power plug |
| 03/31/1993 | CN1020228C Acquisition method and device allowing to precisely digitize analog signals |
| 03/30/1993 | US5198760 Method by which to detect direction of current flow in outputs of integrated circuits |
| 03/30/1993 | US5198703 System for detecting voltage pulses of a particular magnitude |
| 03/30/1993 | CA1315362C High speed cmos comparator with hysteresis |
| 03/28/1993 | CA2079116A1 Surge counter |
| 03/28/1993 | CA2079115A1 Surge counter |
| 03/28/1993 | CA2076488A1 Continuous monitoring electrostatic discharge system |
| 03/24/1993 | EP0532735A1 Cmos strobed comparator |
| 03/24/1993 | CN2128743Y Electric source protecting alarm for light welding machine |
| 03/24/1993 | CN2128742Y Contactless high-and low-voltage electroscope |
| 03/23/1993 | US5196982 Electrical power monitoring system |
| 03/23/1993 | US5196980 Low impedance, high voltage protection circuit |
| 03/23/1993 | US5196833 Low voltage detector circuit |
| 03/17/1993 | EP0226631B1 Method and apparatus for editing particle produced electrical pulses |
| 03/17/1993 | CN2128387Y High-pressure alarm safety helmet |
| 03/16/1993 | US5194868 Dual slope integrating a/c converter |
| 03/16/1993 | CA1314601C Dark current compensation |
| 03/10/1993 | EP0289618B1 Electric resistor equipped with thin film conductor and power detector |
| 03/10/1993 | CN1069823A 磁补偿式霍尔电流传感器用非晶磁芯制法 Magnetic compensation current sensor with amorphous core system of law |