| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/17/1997 | WO1997025625A1 Transient event detector for monitoring electrical loads |
| 07/17/1997 | WO1997018477A3 Current measurement in turbogenerators |
| 07/17/1997 | DE19641283A1 Scanning technique for signal from measurement unit e.g. digital oscilloscope |
| 07/16/1997 | EP0784206A2 Means for measuring the electric field |
| 07/16/1997 | EP0783798A1 Circuit arrangement for evalutating the output signal from an active sensor |
| 07/16/1997 | EP0783786A1 Graphical display for an energy management device |
| 07/16/1997 | EP0783704A1 High side, current sense amplifier using a symmetric amplifier |
| 07/16/1997 | EP0783702A1 Method and device for measuring impedance in alternating current networks and method and device for preventing the formation of separate networks |
| 07/16/1997 | CN1154475A Two-dimensional sensor having photoconductive layer for measuring cell activity |
| 07/15/1997 | US5648723 Method and apparatus for separating and analyzing composite AC/DC waveforms |
| 07/08/1997 | US5646569 Method and apparatus for AC coupling |
| 07/08/1997 | US5646520 Methods and apparatus for sensing currents |
| 07/02/1997 | EP0782002A1 Process and means for contact free measurement of a current |
| 07/02/1997 | EP0757870A4 Self-powered powerline sensor |
| 07/02/1997 | CN1153556A Method and device for monitoring power-supply networks |
| 07/02/1997 | CN1153306A Time-division compensation method |
| 07/01/1997 | US5644238 Method and apparatus for comparing load current in an electrical circuit with the capacity of its supply source |
| 07/01/1997 | US5644220 Process and apparatus for measuring charge quantity flowing in a vacuum |
| 06/29/1997 | CA2166247A1 Supervisory circuit |
| 06/25/1997 | EP0779988A1 Process and device for measuring an alternating electric current with temperature compensation |
| 06/25/1997 | EP0746890A4 Method and apparatus for rms current approximation |
| 06/24/1997 | US5642070 Signal processing circuit and system for detection of absolute value |
| 06/24/1997 | US5642040 Electrooptic probe for measuring voltage of an object having a high permittivity film fixed on an end face of a reflecting film fixed on an electrooptic material |
| 06/19/1997 | WO1997022183A2 A logarithmic level detector and a radio receiver |
| 06/19/1997 | WO1997022012A1 Electro-optic voltage sensor |
| 06/18/1997 | CN2256537Y Micro anti-high voltage alarm |
| 06/17/1997 | US5640626 Battery voltage detection device using pulse width modulation control |
| 06/17/1997 | US5640118 Voltage-limiting circuit with hysteresis comparator |
| 06/17/1997 | US5640095 Circuit arrangement for leakage-resistance testing of a circuit point |
| 06/17/1997 | US5640085 For a power measuring device |
| 06/17/1997 | CA2058311C Fiber optic gyro |
| 06/12/1997 | DE19532677A1 Monitoring circuit for power supply |
| 06/11/1997 | CN1151563A Pre-processor apparatus and method |
| 06/05/1997 | WO1997020269A1 Automatic voltage detection in multiple voltage applications |
| 06/05/1997 | DE19544416A1 Measuring position of dividing line between different rubber mixtures esp. for tyre manufacture |
| 06/04/1997 | EP0776478A1 Method and device for monitoring power-supply networks |
| 06/04/1997 | EP0776477A1 Method and device for the measurement of electric currents in at least two measurement ranges |
| 06/04/1997 | EP0721589B1 Method and device for measuring an alternating electrical quantity to include temperature compensation |
| 06/04/1997 | EP0706662B1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 05/29/1997 | WO1997019361A1 Concatenated magneto-optic field sensors |
| 05/28/1997 | EP0775348A1 Method of detecting signals by means of fuzzy-logic classification |
| 05/28/1997 | EP0706661B1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 05/28/1997 | EP0667060B1 Electronic component |
| 05/28/1997 | CN1150842A Device for connecting voltage display apparatus to sensor |
| 05/27/1997 | US5633592 Charge status indicator |
| 05/22/1997 | WO1997018477A2 Current measurement in turbogenerators |
| 05/20/1997 | US5631603 Offset cancellation for differential amplifiers |
| 05/20/1997 | US5631585 For an alternating analog output signal from a sensor |
| 05/20/1997 | US5631584 Differential cross coupled peak detector |
| 05/20/1997 | US5631575 Intermediate voltage sensor for CMOS circuits |
| 05/20/1997 | US5631569 Impedance measurement in a high-voltage power system |
| 05/20/1997 | US5631555 Voltage measurement system |
| 05/20/1997 | US5631553 High precision RF vector analysis system based on synchronous sampling |
| 05/15/1997 | WO1997017616A1 Current sensor assemblies |
| 05/14/1997 | CN2254190Y Light beam and digit double display installation type KWH meter |
| 05/14/1997 | CN1149723A Current sensor and electric device mounted with said sensor |
| 05/13/1997 | US5629921 Level detector for detecting a voltage level of a signal |
| 05/13/1997 | US5629642 Power supply monitor |
| 05/13/1997 | US5629597 Control unit for induction motor and control method therefor |
| 05/07/1997 | EP0771501A1 Data signal zero crossing detection process |
| 05/07/1997 | EP0628169B1 Process and sensor for measuring electric voltages and/or electric field intensities |
| 05/07/1997 | DE19540983A1 Electric measuring instrument giving acoustic or optical or mechanical signal |
| 05/07/1997 | CN2253832Y Multi-function measuring pen |
| 05/07/1997 | CN1149133A Multi-channel magnetic comparing instrument |
| 05/07/1997 | CN1149128A Apparatus and method for measuring quasi-value |
| 05/06/1997 | US5627759 Electrical energy meters having real-time power quality measurement and reporting capability |
| 05/06/1997 | US5627718 Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique |
| 05/06/1997 | CA2109406C Battery detecting device for a radio pager |
| 04/30/1997 | DE19601727C1 Magneto-optical current converter including Faraday sensor |
| 04/30/1997 | CN2253262Y Multi-functional electrical equipment for maintaining vehicles |
| 04/30/1997 | CN1148688A Anomaly alarming device |
| 04/29/1997 | US5625667 Method of predicting voltages in telephone line measurement |
| 04/29/1997 | US5625305 Load detection apparatus |
| 04/29/1997 | US5625304 Voltage comparator requiring no compensating offset voltage |
| 04/29/1997 | US5625296 For detecting a voltage of a sample |
| 04/24/1997 | DE19517373C2 Spannungserzeugungs-Schaltung zum Testen integrierter Schaltungen Voltage generating circuit for testing integrated circuits |
| 04/23/1997 | EP0769702A1 Inspection device with display |
| 04/23/1997 | EP0570470B1 Battery tester |
| 04/23/1997 | CN2252992Y Zero current detector of thyrister 3-phase rectifier bridge |
| 04/22/1997 | US5623210 Current detector for detecting battery charge remaining |
| 04/16/1997 | EP0768751A1 Improved offset cancellation for differential amplifiers |
| 04/16/1997 | EP0768535A1 Method and apparatus for separating and analyzing composite AC/DC waveforms |
| 04/16/1997 | EP0767917A1 Digital process for determining the effective value of a periodic electric measurement signal |
| 04/15/1997 | US5621521 Checking apparatus for array electrode substrate |
| 04/10/1997 | WO1997013156A1 Ac current sensor |
| 04/10/1997 | WO1997013155A1 Verdet constant temperature-compensated current sensor |
| 04/10/1997 | DE19604041C1 High-side switch load current detection circuit |
| 04/08/1997 | US5619165 Voltage threshold detection circuit with very low consumption |
| 04/03/1997 | WO1997012310A2 Digital trimming of on-chip analog components |
| 04/03/1997 | DE19535952A1 Determination of potential differences in earthed circuits of electrical equipment operated from mains |
| 04/01/1997 | US5617285 Circuit configuration for detecting undervoltage |
| 04/01/1997 | US5617046 Generation of a diagnostic signal when the current through a power transistor reaches a level close to a limit current |
| 04/01/1997 | US5617044 Comparator circuit |
| 03/27/1997 | WO1997011528A1 Circuit arrangement for evaluating a binary signal defined by current threshold values |
| 03/27/1997 | DE19537495A1 System for monitoring current up-take of e.g. electric cleaning machine |
| 03/27/1997 | DE19536819A1 DC voltage monitoring device, for railway signalling system where DC voltage is affected by AC voltage |
| 03/27/1997 | DE19535271A1 Zero-crossing identification circuit with phase correcting filter |
| 03/27/1997 | DE19534825A1 Schaltungsanordnung zum Auswerten eines binären, durch Stromschwellenwerte definierten Signals Circuit arrangement for evaluating a binary signal defined by current thresholds |
| 03/27/1997 | DE19534308A1 Voltage monitoring circuit for uninterruptable i.e. redundant power supply of e.g. telecommunications system |
| 03/25/1997 | US5614851 High-accuracy, low-power peak-to-peak voltage detector |