| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 10/26/1995 | DE4413697A1 Vorrichtung zur Anzeige der Spannung eines Leiters eines Hochspannungsenergieversorgungssystems A device for displaying the voltage of a conductor of a high voltage power supply system |
| 10/25/1995 | EP0678960A1 Method and apparatus for correcting a current signal |
| 10/25/1995 | EP0678802A1 Circuit for voltage limiting with hysteresis comparator |
| 10/25/1995 | EP0678752A1 Method for opens/shorts testing of capacity coupled networks in substrates using electron beams |
| 10/25/1995 | EP0678751A1 Detector for non-transient variation of a supply voltage |
| 10/25/1995 | EP0678750A1 Appliance and method for measuring current |
| 10/25/1995 | CN2211070Y Electric test pen |
| 10/24/1995 | US5461369 Electrostatic discharge detector |
| 10/24/1995 | US5461309 Device for measuring temperature using a Rogowski coil |
| 10/24/1995 | US5461307 Electro-optical current sensing system and method for sensing and avoiding thermally induced measurement error therein |
| 10/24/1995 | US5461306 DC current detection system for a current transformer |
| 10/24/1995 | US5461225 For sampling a repetitive waveform |
| 10/24/1995 | US5460902 Temperature responsive battery tester |
| 10/18/1995 | CN2210399Y Electric appliance working condition testing element |
| 10/18/1995 | CN1030107C 电流测量装置 Current measuring means |
| 10/17/1995 | US5459734 Test circuit for signal input circuit having threshold |
| 10/17/1995 | US5459417 Apparatus for detecting DC content of an AC waveform |
| 10/17/1995 | US5459395 Reduced flux current sensor |
| 10/17/1995 | CA2068634C Peak detection circuit |
| 10/12/1995 | DE4413877C1 Small electric current measurement method for e.g. biological membrane currents |
| 10/12/1995 | DE4411805A1 Voltage-current converter with current setter |
| 10/11/1995 | EP0676626A1 Device for measuring small currents and current differences |
| 10/11/1995 | CN1109975A DC and AC three-purpose current comparator |
| 10/11/1995 | CN1109974A DC current sensor |
| 10/10/1995 | US5457620 Current estimating circuit for switch mode power supply |
| 10/10/1995 | US5457415 Charge metering sampling circuit and use thereof in TFT/LCD |
| 10/04/1995 | EP0675367A2 Voltage proportional replication device using magnetoresistive sensing elements |
| 10/04/1995 | CN1109607A Circuit for estimating a peak or RMS value of a sinusoidal voltage waveform |
| 10/04/1995 | CN1109599A DC current sensor |
| 10/03/1995 | US5455774 Voltage monitoring method |
| 10/03/1995 | US5455510 Signal comparison circuit with temperature compensation |
| 09/28/1995 | WO1995025960A1 Method and apparatus for analyzing a waveform |
| 09/28/1995 | DE4409739A1 Capacitance change detection method for monitoring capacitor-like object |
| 09/27/1995 | EP0673512A1 Charge-status indicator. |
| 09/27/1995 | EP0597873B1 Process for compensating for quasi-periodic disturbances of measurement signals |
| 09/21/1995 | DE4408709A1 Short circuit indicator with current transformers and indicating elements |
| 09/19/1995 | US5452208 Display device |
| 09/19/1995 | US5452198 Apparatus and method for A/C voltage sensing |
| 09/19/1995 | US5451952 CMOS flash analog-to-digital converter with hysteresis |
| 09/19/1995 | US5451947 Modulated dither signal |
| 09/19/1995 | US5451891 Potential detecting circuit |
| 09/14/1995 | DE4407569A1 Approximate detection of alternating parameters |
| 09/13/1995 | EP0671036A1 Instrumentation system with multiple sensor modules |
| 09/13/1995 | EP0604444B1 Circuit arrangement to detect a voltage |
| 09/13/1995 | CN2207644Y Terminal box with self-detecting function |
| 09/13/1995 | CN2207587Y Power line anti-theft alarm |
| 09/12/1995 | US5450520 For driving a load |
| 09/12/1995 | US5450268 Method and apparatus for RMS current approximation |
| 09/12/1995 | US5450029 Circuit for estimating a peak or RMS value of a sinusoidal voltage waveform |
| 09/12/1995 | US5450007 Method and apparatus for power measuring |
| 09/06/1995 | EP0670502A1 Electrical quantity measurement device |
| 09/06/1995 | EP0670499A1 Voltage to frequency converter |
| 09/06/1995 | EP0670033A1 Circuitry for processing analogical current and voltage signals. |
| 09/06/1995 | CN1107975A Circuit arrangement for current measurement via a switching transistor |
| 09/05/1995 | US5448747 For metering an analog voltage |
| 09/05/1995 | US5448200 Differential comparator with differential threshold for local area networks or the like |
| 09/05/1995 | US5448189 Signal averaging apparatus |
| 09/05/1995 | US5448175 Current detecting circuit |
| 09/05/1995 | US5448173 Triple-probe plasma measuring apparatus for correcting space potential errors |
| 09/05/1995 | US5448162 Instrument for testing and/or measuring electric magnitudes |
| 09/05/1995 | US5448143 Sensor for monitoring fan operation in a PC or PC based system |
| 09/05/1995 | US5447450 Live wire detection adapter with grounding capability |
| 08/30/1995 | CN1029646C Zero shift eliminating method and apparatus for micro-current measuring meter |
| 08/29/1995 | US5446655 Multiple-meter driving apparatus |
| 08/29/1995 | US5446650 Logic signal extraction |
| 08/29/1995 | US5446396 Voltage comparator with hysteresis |
| 08/29/1995 | US5446381 Optical voltage electric field sensor |
| 08/29/1995 | US5446372 Noninductive shunt current sensor with self-power capability |
| 08/29/1995 | US5446371 Precision analog-to-digital converter with low-resolution and high-resolution conversion paths |
| 08/23/1995 | EP0668670A1 Receiving system having a large dynamic range |
| 08/22/1995 | US5444759 Method of predicting voltages in telephone line measurement |
| 08/22/1995 | US5444384 Method and device of contactless measurement of electric voltages in a unit under measurement with an insulating surface |
| 08/22/1995 | US5444365 Voltage measuring apparatus having an electro-optic member |
| 08/17/1995 | WO1995022116A1 Fast responding method and apparatus for three phase a/c voltage sensing |
| 08/17/1995 | DE19505652A1 Instantaneous phase and amplitude measurement circuit + |
| 08/17/1995 | DE19502439A1 Charged particle beam in vacuum current measurement |
| 08/16/1995 | EP0667535A2 Electron beam tester and testing method using the same |
| 08/16/1995 | EP0667533A2 Loss-of-signal detector |
| 08/16/1995 | EP0667060A1 Electronic component. |
| 08/16/1995 | CN2205561Y DC electricity tester |
| 08/15/1995 | US5442280 Device for measuring an electrical current in a conductor using a Rogowski coil |
| 08/09/1995 | EP0666646A2 Differential voltage monitor |
| 08/09/1995 | EP0666630A1 Overcurrent preventing circuit |
| 08/09/1995 | CN2205013Y Multifunctional tester |
| 08/09/1995 | CN1029494C D.C and A.C comparator |
| 08/08/1995 | US5440263 Voltage threshold detection circuit with very low power consumption |
| 08/08/1995 | US5440255 Circuit for the detection of a high threshold of a supply voltage |
| 08/08/1995 | US5440254 Accurate low voltage detect circuit |
| 08/08/1995 | US5440253 Semiconductor integrated comparator circuit |
| 08/08/1995 | US5440229 Fundamental voltmeter |
| 08/08/1995 | US5440210 Indirectly sensing accelerator beam currents for limiting maximum beam current magnitude |
| 08/08/1995 | US5439374 Multi-level flame curent sensing circuit |
| 08/03/1995 | WO1995020765A1 Method of measuring current in a conductor in an ac transmission network |
| 08/02/1995 | EP0665444A1 Battery capacity detector |
| 08/02/1995 | EP0665440A1 Device for indicating that a current passage occured in the conductors of lightning protection equipment |
| 08/02/1995 | EP0664933A1 Sensor for registration of leak current |
| 08/02/1995 | CN2204424Y Electric potential, voltage type multi-purpose test pencil |
| 08/01/1995 | US5438289 Comparator circuit |
| 08/01/1995 | US5438255 High voltage phasing detector |
| 08/01/1995 | US5438252 Power supply control module for a battery control system of an appliance, and a battery equipped with such a module |