| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 04/16/1992 | DE4032689A1 Monitoring circuit for semiconductor operating voltage - uses two opto-couplers with their logic output signals combined |
| 04/15/1992 | EP0480206A2 Method for optically measuring electrical potentials |
| 04/15/1992 | EP0480205A2 Method for measuring electrical potentials in a semiconductor device |
| 04/15/1992 | EP0303712B1 Device for detecting output voltage of a laser oscillator |
| 04/15/1992 | CN2101881U Digital test pencil |
| 04/15/1992 | CN2101880U Test pencil for car |
| 04/15/1992 | CN2101879U Multifunctional test pencil |
| 04/15/1992 | CN2101878U Multifunctional remote sensing combined tool for testing electricity |
| 04/14/1992 | US5105181 Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage |
| 04/14/1992 | US5105146 Current sensor and method for determining the current flow in conductors to be evaluated |
| 04/08/1992 | CN2101248U Multifunction detector for electric appliance of automobile |
| 04/08/1992 | CN2101247U Ac-dc test pencil |
| 04/08/1992 | CN1060155A Under voltage alarm circuit for electronic sterilizing deodoriser |
| 04/07/1992 | US5103389 Frequency range of analog converter by means of external rectifier |
| 04/07/1992 | US5103165 Insulated, hand-held non-contacting voltage detection probe |
| 04/07/1992 | US5102470 Germanium-silicon alloy |
| 04/01/1992 | CN2100632U Multi-functional test pencil |
| 04/01/1992 | CN2100631U Multi-functional current or voltage measuring instrument |
| 03/25/1992 | EP0477087A1 Device for processing a signal originating from a sensor having a differentiating response |
| 03/25/1992 | CN2099982U Multifunctional power supply line detector |
| 03/25/1992 | CN2099980U Extra-fast respondent strong current measuring apparatus |
| 03/25/1992 | CN2099979U Photoelectric coupled micro-electric quantity sensor |
| 03/24/1992 | US5099357 Optical sensor |
| 03/24/1992 | US5099209 Battery voltage detecting device |
| 03/24/1992 | US5099183 Proportional-integral process controller having a comparator with a variable slope ramp generator and a constant threshold generator |
| 03/22/1992 | CA2051882A1 Device for processing the output signal of a derivative type response sensor |
| 03/19/1992 | DE4135862A1 Superconducting DC-voltage standard - comprises integrated series of Josephson tunnel-elements and microwave oscillator |
| 03/18/1992 | CN2099321U Portable multifunction signal generator/tester |
| 03/17/1992 | US5097428 Apparatus for counting |
| 03/17/1992 | US5097403 Current sensing synchronous rectifier apparatus |
| 03/17/1992 | US5097201 Voltage imaging system using electro-optics |
| 03/17/1992 | US5097200 Electron launching voltage monitor |
| 03/17/1992 | US5097147 Limited amplitude signal trigger circuit |
| 03/17/1992 | US5097146 Circuit for detecting high voltage level in mos technology |
| 03/17/1992 | CA1297531C Inductive power converter for use with variable input and output voltages |
| 03/12/1992 | DE4126740A1 Monitoring circuitry for potential level on electrical conductors - has one or more comparators with controllable hysteresis shifted by delay element |
| 03/11/1992 | WO1992004626A1 Electronic tester for assessing battery/cell capacity |
| 03/11/1992 | EP0474172A2 Telephone line monitoring apparatus and method |
| 03/11/1992 | EP0473831A1 Power supply with n separate current-limited outputs |
| 03/11/1992 | CN2098688U Mini-size and small-size electric field detector |
| 03/11/1992 | CN1059429A Overcurrent trip circuit |
| 03/11/1992 | CN1059407A Method and electrical measuring apparatus for analyzing impedance of source of actual alternating voltage |
| 03/10/1992 | US5095274 Temperature-compensated apparatus for monitoring current having controlled sensitivity to supply voltage |
| 03/10/1992 | US5095265 Circuit status indicator having liquid crystal display |
| 03/05/1992 | WO1992003742A1 Analog multiplying-averaging circuit and wattmeter circuit using the circuit |
| 03/04/1992 | EP0473436A2 Dynamic voltage integration method and circuits for implementing and applying the same |
| 03/04/1992 | EP0473428A2 Overcurrent trip circuit |
| 03/04/1992 | EP0472614A1 Supply voltage circuit with controllable output power |
| 03/03/1992 | US5093660 Acquisition method and device allowing to precisely digitize analog signals |
| 03/03/1992 | US5093657 Power distribution system |
| 03/01/1992 | CA2049120A1 Overcurrent trip circuit |
| 02/26/1992 | CN2097408U Fast voltage testing pen for vehicles, ships, household electric appliances |
| 02/19/1992 | EP0471521A2 Surround sound matrix using a peak value detecting circuit |
| 02/19/1992 | EP0471431A2 Electrostatic discharge detector |
| 02/19/1992 | EP0471399A1 Device for monitoring the supply voltage on integrated circuits |
| 02/19/1992 | CN2096765U Domestic flash signal screw-driver with voltage tester |
| 02/19/1992 | CN2096764U Simulated ac. voltmeter |
| 02/19/1992 | CN2096451U Multipurpose combined tool for repairing instrument |
| 02/18/1992 | WO1992003743A1 Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage |
| 02/18/1992 | US5089926 Current monitor using a DC isolating amplifier circuit |
| 02/12/1992 | CN2096162U Automobile electronic voltage regulator with fault position display |
| 02/12/1992 | CN2096073U Circuit tester for motor vehicle |
| 02/12/1992 | CN1058653A Automatic voltmeter with digital double-display |
| 02/11/1992 | CA1295682C Electric current measurement |
| 02/06/1992 | WO1992001992A1 Computing device for determining the mean of analysed digital signals |
| 02/05/1992 | EP0469638A2 A power detector comprising a thin film conductor |
| 02/04/1992 | CA1295367C Circuit condition monitoring system having integral test point |
| 01/29/1992 | EP0468830A2 Safety box for high-voltage-operated sign |
| 01/29/1992 | EP0468632A2 A narrow bandwidth pulsed light source and a voltage detection apparatus using it |
| 01/29/1992 | EP0468553A2 Instrumentation system and instrumentation devices adapted for use in such a system |
| 01/29/1992 | CN2094422U Multifunctional long flat nose pliers |
| 01/28/1992 | US5084633 Bidirectional current sensing for power MOSFETS |
| 01/28/1992 | CA1295011C Battery monitoring and condition indicator system for multi-battery pack |
| 01/27/1992 | CA2022067A1 Electric load indicator |
| 01/23/1992 | WO1992001231A1 An indirect current measuring circuit |
| 01/22/1992 | EP0467446A1 Method of adaptively setting decision thresholds in a receiver for multilevel digital signals |
| 01/22/1992 | CN2094067U Multipurpose electrical tester for automobiles |
| 01/22/1992 | CN2094066U Watch-type electric shock warner |
| 01/22/1992 | CN2094065U High-voltage liquid-crystal electrical tester |
| 01/15/1992 | EP0465487A1 Process and device for voltage-frequency conversion |
| 01/15/1992 | EP0414795A4 Voltage controlling and indicating device |
| 01/15/1992 | CN2093401U Electrician's detecting tool |
| 01/15/1992 | CN2093400U Optical fibre current sensor |
| 01/15/1992 | CN2093062U Pliers with test pencil function |
| 01/14/1992 | US5081412 Current conduction probe circuit |
| 01/14/1992 | US5081379 Current-sensing circuit for an ic power semiconductor device |
| 01/14/1992 | CA1294335C Cmos voltage divider circuits |
| 01/14/1992 | CA1294330C Fan operating status sensing circuit |
| 01/08/1992 | EP0465249A1 Voltage comparator with sample hold circuit |
| 01/08/1992 | EP0465038A1 Monitoring weld voltage |
| 01/08/1992 | EP0464391A1 Measuring device and method for putting it into operation |
| 01/08/1992 | CN2092761U Testing pen comprised of window circuit |
| 01/08/1992 | CN2092760U Circuit tester |
| 01/07/1992 | US5079037 Resistive films comprising resistive short fibers in insulating film forming binder |
| 01/07/1992 | CA1293994C Low temperature coefficient shunt for current measurement |
| 01/07/1992 | CA1293993C D.c. power monitor |
| 01/02/1992 | EP0463860A2 Faulted circuit detector having isolated indicator |
| 01/02/1992 | DE4113431A1 Locating extreme value in level of antenna output signal - by shifting window smaller than region in which level changes and displaying level on LED indicator |
| 01/02/1992 | DE4113430A1 Linear measuring rectifier for high frequency signals - has comparator with rectifier and DC voltage amplifier in feedback loop |
| 01/01/1992 | CN2092119U Multifunctional automatic monitor for single-phase mains |