| Patents for G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264) |
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| 08/26/1980 | US4219731 Method for detecting object picture by electron beam |
| 08/26/1980 | CA1084634A1 Method of and apparatus for current-tracing the location of faults on printed circuit boards and similar systems |
| 08/26/1980 | CA1084589A1 Tool for manually tripping a fault indicator for high voltage electric power circuits and resetting same |
| 08/20/1980 | EP0014583A1 Improvements in or relating to fault-finding apparatuses |
| 08/20/1980 | EP0014304A1 Method and apparatus for the contactless measuring of the potential on an electronic element |
| 08/20/1980 | EP0014244A1 Method and device for testing a frequency synthesizer in a HF modem |
| 08/19/1980 | US4218745 Microcomputer assisted electrical harness fabrication and testing system |
| 08/19/1980 | US4218653 Connector contact contamination probe |
| 08/19/1980 | US4218650 Apparatus for measuring semiconductor device resistance |
| 08/19/1980 | US4218649 High voltage leakage and breakdown test circuit |
| 08/19/1980 | US4218143 Lattice matching measurement device |
| 08/19/1980 | CA1084115A1 Sensor circuit |
| 08/12/1980 | US4217645 Battery monitoring system |
| 08/12/1980 | US4217621 Circuit for detecting diode shorting |
| 08/12/1980 | US4217547 Method for determining the compensation density in n-type narrow-gap semiconductors |
| 08/12/1980 | US4217536 Supply voltage monitoring device for automotive battery |
| 08/12/1980 | US4217535 Constant-voltage circuit with a diode and MOS transistors operating in the saturation region |
| 08/12/1980 | CA1083700A1 Programmable electrical apparatus containing a battery |
| 08/12/1980 | CA1083673A1 Device for checking the insulation of the leads connecting a generator to a receiver |
| 08/12/1980 | CA1083672A1 Ground fault detector |
| 08/12/1980 | CA1083669A1 Apparatus and method for electrically testing multi- core cables |
| 08/06/1980 | EP0013877A1 Process and device for testing a connector clip of a solderless electrical connection |
| 08/06/1980 | EP0013876A1 Device for contactless potential measurement |
| 08/06/1980 | EP0013860A1 Device for section testing |
| 08/06/1980 | EP0013706A1 System for automatically monitoring the charging state of the mains independent power supply and the humidity in the responder of a vehicle location system |
| 08/05/1980 | US4216539 In-circuit digital tester |
| 08/05/1980 | US4216533 Pattern generator |
| 08/05/1980 | US4216514 Protective device for brushless exciting device |
| 08/05/1980 | US4216424 Method and apparatus for testing electrolytic capacitors |
| 08/05/1980 | US4216374 Hybrid signature test method and apparatus |
| 08/05/1980 | CA1083275A1 Elevator testing system |
| 08/05/1980 | CA1083218A1 Waveform analyzer for rotating electrical circuitry |
| 07/29/1980 | US4215309 High efficiency switching circuit |
| 07/29/1980 | US4215306 Electrical testing apparatus |
| 07/23/1980 | EP0013641A1 Automatic test device for digital filters of an apparatus for the elimination of fixed echos |
| 07/23/1980 | EP0013536A1 Device for charge control of a battery in a lighting arrangement for vehicles such as bicycles, motor vehicles and the like |
| 07/23/1980 | EP0013290A1 Large scale integrated circuit wafer and method of testing same |
| 07/22/1980 | US4214311 Method and apparatus for measuring insulation resistance |
| 07/22/1980 | US4214210 Electromagnetic noise source locator |
| 07/22/1980 | US4214204 High rate, battery testing apparatus and method |
| 07/15/1980 | US4213087 Method and device for testing electrical conductor elements |
| 07/15/1980 | US4213086 Selector device for the determination of the type of electroconductivity in semiconductor wafers |
| 07/09/1980 | EP0013160A1 Method and apparatus for determining the applied voltage at which Paschen breakdown occurs in electrography |
| 07/09/1980 | EP0013104A1 Fault distance locator |
| 07/08/1980 | US4212075 Electrical component testing system for component insertion machine |
| 07/08/1980 | US4211973 Apparatus for detecting faults to be occurred or initially existing in a running electric rotary machine |
| 07/08/1980 | US4211917 Circuit board testing apparatus and method |
| 07/08/1980 | US4211488 Optical testing of a semiconductor |
| 07/01/1980 | CA1080800A1 Apparatus and method for testing electrical surge arresters |
| 06/25/1980 | EP0012721A1 High tension testing installation |
| 06/25/1980 | EP0012315A1 Method and device to watch the charged state of an accumulator |
| 06/25/1980 | EP0012185A1 Test circuit for synchronously operating clock generators |
| 06/25/1980 | EP0012137A1 Electrical conductor and short circuit locator |
| 06/17/1980 | US4208627 Alarm circuit to detect shorting of periodic signal source |
| 06/17/1980 | US4208624 Method and apparatus for investigating dielectric semiconductor materials |
| 06/17/1980 | CA1079860A1 Automatic fault-probing method and apparatus for checking electrical circuits and the like |
| 06/12/1980 | WO1980001207A1 Digital tester |
| 06/11/1980 | EP0011952A1 Method and apparatus for testing enclosed electromagnetic relays |
| 06/11/1980 | EP0011949A2 Body tissue stimulator pulse generator |
| 06/11/1980 | EP0011680A1 Malfunction detecting circuit for a safety device actuator used to protect vehicle occupants in the event of a collision |
| 06/10/1980 | US4207611 Apparatus and method for calibrated testing of a vehicle electrical system |
| 06/10/1980 | US4207610 Apparatus and method for testing and controlling manufacture of a vehicle electrical system |
| 06/10/1980 | CA1079405A1 Electronic examination of cardiac pacers |
| 06/10/1980 | CA1079387A1 Test station apparatus |
| 06/03/1980 | US4206398 Method of and apparatus for detecting ground faults in isolated power supply systems |
| 06/03/1980 | US4206020 Electrochemical process using a fluidized electrode |
| 05/28/1980 | EP0011454A1 Monitoring circuits, more particularly for monitoring lamp circuits |
| 05/28/1980 | EP0011359A1 Method and apparatus for testing electrical circuits |
| 05/28/1980 | EP0011352A1 Method of and apparatus for testing electronic circuit assemblies and the like |
| 05/27/1980 | US4205307 Device for monitoring the function of electromagnets |
| 05/27/1980 | US4205301 Error detecting system for integrated circuit |
| 05/27/1980 | US4205265 Laser beam apparatus and method for analyzing solar cells |
| 05/27/1980 | US4205264 High impedance electrical testing instrument for AC and DC voltage detection and continuity testing |
| 05/27/1980 | US4204633 Logic chip test system with path oriented decision making test pattern generator |
| 05/27/1980 | US4204425 Method of testing induction motors |
| 05/20/1980 | US4204162 Method of controlling the condition of an electric battery and apparatus for carrying out this method |
| 05/20/1980 | US4204161 Apparatus for rapidly testing electrochemical cells |
| 05/20/1980 | US4204156 Apparatus for aligning brushes of a dynamoelectric machine |
| 05/20/1980 | US4204154 Portable device for use in starting air-start units for aircraft and having cable lead testing capability |
| 05/20/1980 | US4204153 Method of determining the open circuit voltage of a battery in a closed circuit |
| 05/20/1980 | US4204152 High and low voltage measuring apparatus employing a single display and impedance matching |
| 05/20/1980 | US4204114 Method and apparatus for comparing logic functions by acquiring signals one at a time from circuit nodes |
| 05/20/1980 | US4203543 Pattern generation system |
| 05/20/1980 | CA1078017A1 Corona discharge monitor system |
| 05/20/1980 | CA1078016A1 Induction motor load monitor and control apparatus |
| 05/14/1980 | EP0010861A1 System for protecting an offshore structure |
| 05/14/1980 | EP0010841A1 Apparatus and method for locating sheath faults in underground power supply cables |
| 05/14/1980 | EP0010599A1 Shift register latch circuit operable as a D-type edge trigger and counter comprising a plurality of such latch circuits |
| 05/13/1980 | US4203134 FM Signal demodulator with defect detection |
| 05/13/1980 | US4203103 Battery deterioration indicator for an electronic desk top calculator |
| 05/13/1980 | CA1077594A1 Brush wear indicator |
| 05/13/1980 | CA1077570A1 Test pin |
| 05/13/1980 | CA1077567A1 Method of level sensitive testing a functional logic system with embedded array |
| 05/06/1980 | US4201939 Multiprobe contact monitor and control system |
| 05/06/1980 | US4201374 Substrate carrier |
| 05/06/1980 | US4201089 Temperature measuring device for transformers and reactors |
| 04/30/1980 | EP0010173A1 Semiconductor chip with improved ability for testing the large scale integrated circuits |
| 04/29/1980 | US4200836 Apparatus for measuring insulation resistance in an operating three-phase ungrounded transmission line system |
| 04/29/1980 | US4200835 Method and apparatus for measuring the insulation resistance of an operating grounded transmission line system |
| 04/22/1980 | CA1076207A1 Apparatus for electrically testing molded cord-sets during the molding operation |