| 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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| 05/12/1981 | US4267463 Digital integrated circuit |
| 05/05/1981 | US4266191 Test probe alignment apparatus |
| 05/05/1981 | US4266184 Method and apparatus for testing insulators |
| 05/05/1981 | CA1100576A1 Testing circuit boards |
| 04/30/1981 | WO1981001210A1 Lsi circuit logic structure including data compression circuitry |
| 04/28/1981 | US4264807 Counter including two 2 bit counter segments connected in cascade each counting in Gray code |
| 04/21/1981 | US4263669 Pattern generation system |
| 04/21/1981 | US4263589 Devices for detecting the rupture of an electrical circuit element |
| 04/21/1981 | US4263545 Method of testing pulse delay time |
| 04/21/1981 | US4263491 Method for checking electric contacts of an enclosed-type switching device and an auxiliary apparatus for use with the switching device to use the method |
| 04/21/1981 | CA1099782A1 Ground fault protective apparatus of field windings |
| 04/15/1981 | EP0027078A1 Control and diagnostics apparatus for car radios |
| 04/15/1981 | EP0026824A1 Adaptes for a device for electronically testing printed circuit boards |
| 04/14/1981 | US4262248 System for servicing process instrumentation |
| 04/14/1981 | US4261206 Fault diagnostic device for winding of electric machinery and apparatus |
| 04/08/1981 | EP0026673A1 A method for measurement of temperature distribution over the surface of a sample, and a system for performing such measurement |
| 04/08/1981 | EP0026297A1 Apparatus for sensing and locating shorts between a plurality n of electrical conductors |
| 04/07/1981 | US4260985 Resistive device sensor |
| 04/07/1981 | US4260566 Strand shield defect detector |
| 04/07/1981 | CA1098984A1 Low-profile test clip adapter |
| 04/02/1981 | WO1981000915A1 Method and apparatus for testing survival radios |
| 03/31/1981 | US4259666 Apparatus for detecting degradation of characteristics of arresters |
| 03/31/1981 | US4259639 Circuit and method for detecting battery source end of life |
| 03/31/1981 | US4259636 Monitoring device for semiconductor rectifiers |
| 03/31/1981 | US4259366 Field effect transistors |
| 03/31/1981 | US4258999 Power source voltage checking circuit |
| 03/24/1981 | US4258325 Thermostat and method of testing thereof |
| 03/24/1981 | US4258323 Cathodic survey apparatus |
| 03/24/1981 | US4258313 Socket test device for testing three way lamp sockets |
| 03/24/1981 | US4258306 State of battery charge indicator circuit |
| 03/24/1981 | US4257991 Method of and a regulator for adjusting the capacity and the diameter of an electric conductor |
| 03/24/1981 | US4257825 Method of manufacturing semiconductor devices having improvements in device reliability by thermally treating selectively implanted test figures in wafers |
| 03/24/1981 | CA1098171A1 Apparatus for identifying faulty diodes in automotive alternators |
| 03/18/1981 | EP0025181A1 Circuitry for computer-assisted continuity checking actuator elements present in a control unit, their installation and their drivers |
| 03/17/1981 | US4257002 Automatic harness tester |
| 03/17/1981 | CA1097710A1 Multi-stage heat sensing cable and emergency communications system |
| 03/11/1981 | EP0024556A1 Monitoring arrangement for the insulating resistance of a series voltage circuit of an airfield's lighting system |
| 03/10/1981 | US4255792 Automated analog circuit test system |
| 03/10/1981 | US4255698 Protection of batteries |
| 03/05/1981 | WO1981000646A1 Device manufacture involving pattern delineation in thin layers |
| 03/03/1981 | US4254495 Control system including built in test equipment for wiring harness interface testing |
| 03/03/1981 | US4254374 Cable tester |
| 02/25/1981 | EP0024183A1 A method of detecting faults in the electrically conductive sheath of an electric cable |
| 02/24/1981 | US4253056 Ground fault detector for DC power supply |
| 02/24/1981 | CA1096481A1 Method and system for corona source location by acoustic signal detection |
| 02/18/1981 | EP0023972A2 A system of functional units for performing logic functions |
| 02/18/1981 | EP0023935A1 Device for continuously controlling the functioning of a display or recording instrument, method of operating same and application of the method |
| 02/17/1981 | US4251846 Apparatus for sensing short circuit faults in alternating current supply lines |
| 02/17/1981 | US4251844 Fault indicator case and mount |
| 02/17/1981 | US4251811 Battery test system, as for smoke detector alarm |
| 02/17/1981 | US4251765 Aircraft electrical system tester |
| 02/17/1981 | US4251151 Apparatus including battery check circuit |
| 02/11/1981 | EP0023696A1 Localization appliance for insulation faults |
| 02/11/1981 | EP0023574A1 Opto-electronic system for automatically testing the quality of printed-circuit boards, their intermediate products and printing tools |
| 02/10/1981 | US4250446 Combination flashlight and circuit tester |
| 02/05/1981 | WO1981000306A1 Method of estimating life of insulation for electric device using resin insulator |
| 02/04/1981 | EP0023419A2 A method and a device for testing a logic circuit |
| 02/03/1981 | USRE30502 Open lead testing system for EEG |
| 02/03/1981 | US4249246 Programmable logic array for generating EOR sums of input signals |
| 02/03/1981 | US4249130 Dwell measuring apparatus |
| 02/03/1981 | US4249126 On-line fault locator for gas-insulated conductors with plural detectors |
| 02/03/1981 | US4249125 Portable device for testing and/or temporarily correcting circuits in a vehicle electrical system |
| 02/03/1981 | US4249124 Method and apparatus for monitoring faults by means of a polygonal trigger region |
| 01/28/1981 | EP0022992A1 Surveillance apparatus for a battery of condensators in a direct current filtering circuit |
| 01/28/1981 | EP0022965A1 Device for checking the correct functioning of electronic equipment |
| 01/27/1981 | US4247817 Transmitting electrical signals with a transmission time independent of distance between transmitter and receiver |
| 01/27/1981 | US4247814 Mat testing apparatus |
| 01/27/1981 | US4247813 On-board vehicular electrical power supply system |
| 01/27/1981 | US4247812 Method of controlling the recharging of storage cells, and monitoring their state of charge |
| 01/27/1981 | US4247811 Battery sensor |
| 01/27/1981 | CA1094640A1 Multi-function electrical test apparatus |
| 01/21/1981 | EP0022450A1 Test method for DC sources like batteries, and test device therefor |
| 01/20/1981 | US4246566 Malfunction diagnosing apparatus for electronic control system for vehicles |
| 01/20/1981 | CA1094158A1 Battery discriminator circuit for smoke detector |
| 01/20/1981 | CA1094157A1 Methods of and apparatus for detecting openings in cable jackets |
| 01/13/1981 | US4245318 Circuit breaker demonstrator and distribution circuit protection coordinator apparatus |
| 01/13/1981 | US4245187 VLF Capacitor corona detection |
| 01/13/1981 | US4245181 Method and apparatus for generating an air gap flux signal for an AC machine from AC line voltage and current values |
| 01/13/1981 | CA1093705A1 Semiconductor tester |
| 01/07/1981 | EP0021916A1 Method of watching the instantaneous state of an electric circuit and especially of detecting a break in said circuit |
| 01/07/1981 | EP0021562A1 Method of detecting an electrical short |
| 01/07/1981 | EP0021560A1 A method of detecting electrical shorts |
| 01/07/1981 | EP0021404A1 Computing system for the simulation of logic operations |
| 01/07/1981 | EP0021394A1 Interelectrode impedance measuring apparatus for electrocardiography |
| 01/07/1981 | EP0020714A1 Digital tester. |
| 01/07/1981 | EP0020447A1 Circuit integrity tester |
| 01/06/1981 | US4244048 Chip and wafer configuration and testing method for large-scale-integrated circuits |
| 01/06/1981 | US4243971 Test circuit for automotive passenger restraint systems |
| 01/06/1981 | US4243934 Composite signal generator |
| 01/06/1981 | CA1093155A1 Synthetic test circuit |
| 12/30/1980 | US4242751 Automatic fault-probing method and apparatus for checking electrical circuits and the like |
| 12/30/1980 | US4242713 Triac output asymmetry detector |
| 12/30/1980 | US4242635 Apparatus and method for integrated circuit test analysis |
| 12/30/1980 | US4242633 Integrated circuit light emitting electronic malfunction checking system |
| 12/30/1980 | US4242632 Method and apparatus for testing axial-lead components |
| 12/24/1980 | WO1980002893A1 Bidirectional integrator |
| 12/23/1980 | US4241307 Module interconnection testing scheme |
| 12/23/1980 | US4241306 Test fixture having switching means for facilitating transformer turns ratio testing |
| 12/23/1980 | US4241305 Method and apparatus for locating faults in electric cables |
| 12/23/1980 | US4241304 Continuous continuity monitor for monitoring the continuity of an insulated wire conductor |