| 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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| 01/12/1982 | US4310837 Electrical device termination high temperature indicator |
| 01/12/1982 | US4310802 Logical waveform generator |
| 01/12/1982 | US4310606 Battery voltage checking device |
| 01/12/1982 | CA1116236A1 Electronic ground detector for armature supplies |
| 01/06/1982 | EP0042961A2 Method and circuit arrangement for the generation of pulses of predetermined time relation within predetermined pulse intervals with high temporal resolution |
| 01/06/1982 | EP0042878A1 Device for monitoring an amplifier stage |
| 01/05/1982 | US4309695 Electronic alarm circuit |
| 01/05/1982 | US4309657 Apparatus for analyzing semiconductor memories |
| 01/05/1982 | US4309627 Detecting circuit for a power source voltage |
| 01/05/1982 | CA1115801A1 Diagnostic system for heat pump |
| 12/30/1981 | EP0042642A1 FSK modem local test system |
| 12/30/1981 | EP0009572B1 Method and device for testing sequential circuits realized by monolithic integrated semiconductor circuits |
| 12/29/1981 | CA1115366A1 Connector plug for vehicle electrical tester |
| 12/29/1981 | CA1115343A1 Method for loading batteries |
| 12/23/1981 | EP0042222A2 Programmable sequence generator for in-circuit digital tester |
| 12/22/1981 | US4307345 Circuit recloser test set |
| 12/22/1981 | US4307342 Method and apparatus for testing electronic devices |
| 12/22/1981 | US4307338 Laser alignment detector |
| 12/22/1981 | US4307335 Open thermocouple tester system |
| 12/22/1981 | US4307330 Method and device for monitoring the state of charge of a storage battery |
| 12/16/1981 | EP0041858A1 Method and apparatus for deep level transient spectroscopy scanning |
| 12/15/1981 | US4306286 Logic simulation machine |
| 12/15/1981 | US4306188 Photomultiplier tube having a photocurrent collector |
| 12/15/1981 | US4306146 High impedance transducer circuit |
| 12/10/1981 | EP0028625A4 Bidirectional integrator. |
| 12/08/1981 | US4305097 Automated opto-electronic test system for quality control of two-dimensional elements with high geometric figure density |
| 12/08/1981 | US4305076 Device for the automatic testing of digital filters in moving-target indicators |
| 12/02/1981 | EP0040768A1 Monitoring device for an LC filter circuit of an alternating current network |
| 12/02/1981 | EP0040766A1 Monitoring device for capacitor banks of a three-phase filter circuit |
| 12/02/1981 | EP0040765A1 Monitoring device for a capacitor bank of an alternating current network |
| 12/02/1981 | EP0040691A1 Apparatus for measuring semiconductor surface potential and impurity concentration |
| 12/01/1981 | US4303882 Method and apparatus for monitoring torsional vibration in the rotor of a dynamoelectric machine |
| 12/01/1981 | US4303808 Locating noise in communications systems |
| 12/01/1981 | CA1113575A1 Check circuit for synchronized clocks |
| 11/26/1981 | WO1981003404A1 Stator fault detector for automotive alternator battery charging systems |
| 11/26/1981 | WO1981003403A1 Field coil fault detector for automotive alternator battery charging systems |
| 11/26/1981 | WO1981003402A1 Ripple detector for automotive alternator battery charging systems |
| 11/26/1981 | WO1981003401A1 Fault detection and diagnostic system for automotive battery charging systems |
| 11/24/1981 | US4302725 Method for testing panel-to-funnel sealing layer of a cathode-ray tube |
| 11/24/1981 | US4302721 Non-contacting resistivity instrument with structurally related conductance and distance measuring transducers |
| 11/24/1981 | US4302714 Rechargeable battery charger system for charging testing, rejuvenation and preventative maintenance |
| 11/18/1981 | EP0039689A1 Lsi circuit logic structure including data compression circuitry |
| 11/17/1981 | US4301409 Solar cell anomaly detection method and apparatus |
| 11/17/1981 | US4301403 Electrical circuit testing |
| 11/17/1981 | US4301399 Monitoring of electrical insulation integrity |
| 11/10/1981 | US4300234 Address pattern generator for testing a memory |
| 11/10/1981 | US4300207 Multiple matrix switching system |
| 11/10/1981 | US4300094 Finish measuring method and apparatus |
| 11/10/1981 | US4300092 Phase match measuring system |
| 11/10/1981 | US4300078 Method of constructing models of rotary electrical machines to provide simultaneous similitude of electromagnetic, thermal and mechanical working conditions of the rotor |
| 11/10/1981 | US4299131 Method and apparatus for testing the clamp of a solderless electric connection |
| 11/10/1981 | CA1112104A1 Hole sensing device for spike driver |
| 11/04/1981 | EP0039122A2 Apparatus and method for testing electrical systems of a vehicle |
| 11/04/1981 | EP0038947A2 Programmable logic array |
| 11/03/1981 | US4298980 LSI Circuitry conforming to level sensitive scan design (LSSD) rules and method of testing same |
| 11/03/1981 | US4298810 Semiconductor device conduction state detection circuit |
| 11/03/1981 | CA1111912A1 High resistance ground fault detector |
| 10/28/1981 | EP0038790A1 Method and apparatus for the detection of insufficient dielectric properties of the insulation of coil windings |
| 10/28/1981 | EP0038400A1 Method and system for monitoring cables for the automatic monitoring of a communication cable network |
| 10/27/1981 | US4297639 Battery testing apparatus with overload protective means |
| 10/27/1981 | US4297626 Method of determining operating currents for stepping motor |
| 10/27/1981 | US4297567 Apparatus for receiving storing and outputting digital signal sequences |
| 10/27/1981 | US4296542 Control of small parts in a manufacturing operation |
| 10/27/1981 | CA1111498A1 Pressure switch checking device for locomotives |
| 10/27/1981 | CA1111282A1 Apparatus for monitoring phase currents and torsional vibrations of a turbine-generator |
| 10/21/1981 | EP0038259A1 Process for detecting faults of a phase in an electric energy distribution system |
| 10/21/1981 | EP0037965A2 Device for testing a digital circuit with test circuits enclosed in this circuit |
| 10/20/1981 | US4296372 Techniques for impressing a voltage with an electron beam |
| 10/20/1981 | US4296370 Method of detecting a thin insulating film over a conductor |
| 10/20/1981 | US4295704 Side probeable connector using flat cable |
| 10/20/1981 | US4295359 Calibration apparatus for CML circuit test unit |
| 10/20/1981 | CA1111124A1 Fluid level detector test switch |
| 10/15/1981 | WO1981002956A1 Fault indicating circuit for an automotive alternator battery charging system |
| 10/13/1981 | US4295220 Clock check circuits using delayed signals |
| 10/13/1981 | US4295182 Interconnection arrangements for testing microelectronic circuit chips on a wafer |
| 10/13/1981 | US4295097 Battery capacity measuring method and apparatus |
| 10/13/1981 | US4295087 Charge indicator circuit for a battery charging system |
| 10/07/1981 | EP0037385A2 Apparatus for counteracting the cathode current increase occurring during warming-up in a travelling-wave tube in response to variation in the grid-cathode distance |
| 10/06/1981 | US4293950 Test pattern generating apparatus |
| 10/06/1981 | US4293919 Level sensitive scan design (LSSD) system |
| 10/06/1981 | US4293915 Programmable electronic real-time load controller |
| 10/06/1981 | US4293813 Current measuring system |
| 10/06/1981 | US4293782 Voltage detecting circuit |
| 10/06/1981 | US4293174 Electrical circuit tester |
| 10/06/1981 | CA1110353A1 Method and apparatus for analyzing performance of electric-traction-motor powered vehicles and electrical operating components thereof |
| 09/29/1981 | US4292586 Testing of circuit arrangements |
| 09/29/1981 | US4292519 Device for contact-free potential measurements |
| 09/29/1981 | US4291989 Abnormality sensing device for gas-insulated electric apparatus |
| 09/23/1981 | EP0036069A1 Digitally controlled machine |
| 09/23/1981 | EP0036023A1 A method of estimating the insulation life of an electrical appliance incorporating a resin insulator |
| 09/22/1981 | US4291404 Automatic circuit tester with improved voltage regulator |
| 09/22/1981 | US4291386 Pseudorandom number generator |
| 09/22/1981 | US4291302 Lamp monitoring circuits |
| 09/22/1981 | US4291204 Fault locating system for electric cables and the like |
| 09/22/1981 | US4290429 Battery monitoring circuit in a cardiac pacemaker |
| 09/16/1981 | EP0035529A1 Device manufacture involving pattern delineation in thin layers |
| 09/15/1981 | US4290137 Apparatus and method of testing CML circuits |
| 09/15/1981 | US4290109 Electric monitoring method and apparatus for electric system of automotive vehicle |
| 09/15/1981 | US4290021 Battery testing method and device |
| 09/15/1981 | US4290015 Electrical validator for a printed circuit board test fixture and a method of validation thereof |