| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 11/04/1992 | CN2121031U Automobile detecting apparatus |
| 11/04/1992 | CN1065961A Dual slope integrating a/d converter |
| 10/29/1992 | WO1992018871A1 Digital battery capacity warning device |
| 10/28/1992 | EP0510677A1 Analyzing system for operating condition of electrical apparatus |
| 10/28/1992 | EP0510430A2 Method and device for measuring the electrical potential of a sample with a radiation probe |
| 10/28/1992 | CN2120343U Double-tube safety test pencil |
| 10/28/1992 | CN2120342U Six-purpose test pencil |
| 10/28/1992 | CN2119992U Universal screwdriver |
| 10/27/1992 | US5159561 Zero-phase sequence current detector |
| 10/27/1992 | US5159516 Overcurrent-detection circuit |
| 10/27/1992 | US5159319 Faulted circuit detector having an isolated indicator for an electrical transformer |
| 10/27/1992 | US5159272 Monitoring device for electric storage battery and configuration therefor |
| 10/27/1992 | US5159211 Extreme level circuit |
| 10/21/1992 | CN2119665U Test pencil type multifunction electricity meter |
| 10/21/1992 | CN1065533A Method and instrument for checking false wiring of watt-hour meter |
| 10/20/1992 | US5157327 Method and apparatus for electro-optically measuring a voltage signal |
| 10/15/1992 | WO1992017939A1 Cmos strobed comparator |
| 10/15/1992 | DE4208541A1 Voltage monitoring circuit for three=phase network - has rectifier bridge whose positive and negative DC output voltages and compared with threshold values with result being combined and pulse blocked |
| 10/15/1992 | DE4112169A1 Fault current monitor e.g. for network with unearthed transformer secondary - has summing current converter supplying power to detector which supplies power to indicator with interruption button |
| 10/14/1992 | EP0508089A2 Process and appliance for testing an armature |
| 10/13/1992 | US5155443 Machine for inspecting the wall thickness of glass containers |
| 10/13/1992 | US5155386 Programmable hysteresis comparator |
| 10/07/1992 | EP0507728A1 Charge amplifier circuit |
| 10/07/1992 | EP0507126A2 Input protecting mechanism for measuring device |
| 10/07/1992 | CN2118311U Division and composite body dual-purpose pliers shape galvanometer |
| 10/07/1992 | CN1018588B Method of updating scale factor of apparatus for measuring alternating electric current by means of faraday effect |
| 10/06/1992 | US5153667 Apparatus for detecting the change of light intensity |
| 10/06/1992 | US5153489 Electric current measurement apparatus for a solid state motor controller |
| 10/06/1992 | US5153427 Optical d.c. voltage transformer |
| 10/06/1992 | CA1308439C Device for voltage testing |
| 10/01/1992 | DE4109943A1 High impedance circuit arrangement for indicating voltage in energy supply mains - has voltage tapping coupled with active part of energy supply mains and at least one indicating element also control circuit between tapping and indicating element |
| 09/30/1992 | WO1992017886A1 Low power voltage sensing circuit |
| 09/30/1992 | EP0506531A1 High threshold detection circuit for power supply |
| 09/30/1992 | EP0506358A2 Sampling-type optical voltage detector |
| 09/30/1992 | CN2117617U Multifunctional safety voltage tester |
| 09/30/1992 | CN1064946A Multifunction test pencil with simulated pointer liquid crystal display |
| 09/30/1992 | CN1018484B Ratimetric measurement circuit with improved noise rejection |
| 09/29/1992 | US5151866 High speed power analyzer |
| 09/29/1992 | US5151662 Circuit and method of signal differentiation |
| 09/23/1992 | EP0505280A2 A method of measuring a voltage with an electron beam apparatus |
| 09/23/1992 | EP0505185A1 Optical sensor and method for producing the same |
| 09/23/1992 | CN2116919U Current signal analysing device |
| 09/23/1992 | CN2116912U Multi-functional test pencil with simulated indicator liquid crystal display |
| 09/23/1992 | CN2116911U Multi-purpose high-voltage hot-line measuring instrument |
| 09/23/1992 | CN2116562U Combined screwdriver tool |
| 09/16/1992 | CN2116287U Shockproof safety socket |
| 09/16/1992 | CN2116221U Indicator for voltage tester |
| 09/16/1992 | CN2116220U Multifunctional low voltage test pencil |
| 09/12/1992 | CA2062533A1 Method and apparatus for testing a valve |
| 09/11/1992 | EP0537144A4 Data encodement and reading method and apparatus. |
| 09/10/1992 | DE4200623A1 Voltage level detector circuit - produces logic level corresp. to input signal using referenced generator and comparison circuits supplied by PMOS transistors in low power consumption circuit |
| 09/10/1992 | DE4107939A1 Controlled measurement rectifier for periodic AC signals - contains control and measurement channels connected by optical couplers, resistive transformation component and amplifier in measurement channel |
| 09/09/1992 | EP0502451A1 Electronic torque wrench and overshoot compensation circuit therefor |
| 09/08/1992 | US5146397 Power supply device with unbalance monitoring circuit |
| 09/08/1992 | US5146156 Current intensity transformer device for measuring a variable electric current |
| 09/08/1992 | US5146155 Digital measuring circuit for measuring an electrical signal |
| 09/08/1992 | US5146154 Circuit with ratiometric analog inputs |
| 09/05/1992 | CA2062215A1 Electronic torque wrench and overshoot compensation circuit therefor |
| 09/03/1992 | WO1992015021A1 Voltage imaging system using electro-optics |
| 09/02/1992 | EP0501200A2 Compensation principle current sensor |
| 09/02/1992 | CN2114833U Modularity dc digital voltage meter |
| 09/02/1992 | CN2114832U Micro and miniature electric field detector |
| 09/02/1992 | CN1064163A Data acquisition systems with programmable bit-serial digital signal processors |
| 09/02/1992 | CN1064154A Test pencil with liquid crystal display of high/low voltage and manufacture thereof |
| 09/02/1992 | CN1064153A 电流测量装置 Current measuring means |
| 09/01/1992 | US5144515 Detector of fast variation in the supply of integrated circuits |
| 09/01/1992 | US5144287 Current level sensing circuit for use with gyrator circuitry |
| 09/01/1992 | US5144226 Multi-mode measuring system |
| 09/01/1992 | US5144172 Detection circuit of the current in an mos type power transistor |
| 08/26/1992 | EP0499800A2 Comparator device for space diversity receiver |
| 08/26/1992 | CN2114166U Non-contact voltage sensor for power cables |
| 08/26/1992 | CN1063942A Low impedance, high voltage protection circuit |
| 08/26/1992 | CN1018028B Method of and apparatus for determining ac calibration errors |
| 08/25/1992 | US5142236 Switched-capacitor circuit having a full-wave-rectifying and integrating function |
| 08/25/1992 | CA1306774C Circuit for generating discrimination level voltage |
| 08/20/1992 | WO1992014294A1 Current sensing synchronous rectifier apparatus |
| 08/20/1992 | WO1992014162A1 Method and device for contactless measurement of the voltage in an object with an insulating surface |
| 08/19/1992 | EP0499589A1 Device for measuring currents |
| 08/19/1992 | EP0498953A2 Data acquisition systems with programmable bit-serial digital signal processors |
| 08/19/1992 | CN1063757A Machine for inspecting wall thickness of glass containers |
| 08/19/1992 | CN1017938B Zero magnetic flow direct current mutual-inductor |
| 08/18/1992 | US5140269 Electronic tester for assessing battery/cell capacity |
| 08/18/1992 | US5140257 System for rating electric power transmission lines and equipment |
| 08/18/1992 | US5140187 Regenerative comparators |
| 08/18/1992 | US5140185 Integratable bipolar level detector for high-frequency sinusoidal signals |
| 08/13/1992 | DE4104184A1 method for detecting load current flowing in load current circuit - has fuse in which voltage potential produced at fuse is supplied to amplifier with large input resistance and output from amplifier is supplied to evaluation unit |
| 08/13/1992 | DE4104172A1 Digital measurement of resistance value of sensor resistance - using voltage time conversion in which besides sensor resistance at least one reference resistance is acted on with same constant current |
| 08/13/1992 | DE4104105A1 Unit measuring potential separate current at 3=phase asynchronous motor inverter - determines current in intermediate circuit across shunt and is compensated corresp. to fluctuations in current circuit |
| 08/13/1992 | DE4103864A1 HF rectifier with LF diodes lying in parallel to each other - arranged with cathode of one diode connected to anode of other diode to give frequency rectification at two phases |
| 08/12/1992 | CN2112829U Micro-consumption high-precision digital micro current meter |
| 08/11/1992 | US5138254 Removable alternating current measuring circuit |
| 08/11/1992 | US5138192 AC voltage identification circuit |
| 08/11/1992 | CA1306286C Adjustment circuit and method for solid-state electricity meter |
| 08/08/1992 | WO1992014144A1 Battery tester |
| 08/05/1992 | EP0497617A2 Battery voltage tester |
| 08/05/1992 | EP0497478A2 Low impedance, high voltage protection circuit |
| 08/05/1992 | EP0497444A2 Limited amplitude signal trigger circuit |
| 08/05/1992 | CN2112195U Safety plug-in knife switch |
| 08/05/1992 | CN2112170U Automotive electronic clock with bar chart voltmeter |
| 08/05/1992 | CN2112158U Test pencil using acoustooptic determing voltage value |