Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › 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
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)
12/1980
12/23/1980US4241259 Scanning electron microscope
12/23/1980US4241167 Electrolytic blocking contact to InP
12/23/1980US4240750 Automatic circuit board tester
12/16/1980US4240032 Transporting and orienting an article using a movable carrier inserted into an indentation in the article
12/16/1980US4240026 Detection of faults in the insulation of an electrical conductor using a liquid electrolyte
12/11/1980WO1980002748A1 Method and apparatus for measuring and displaying the distance to an occured short circuit or similar line fault on an alternating current powerline
12/10/1980EP0020047A2 Method and apparatus for fault identification in electric power transmission systems
12/10/1980EP0019884A1 Circuit arrangement for supervising the operational characteristics of an excess voltage arrester without spark gap
12/10/1980EP0019869A1 Arrangement for measuring and monitoring electrical rotor asymmetries in induction motors with squirrel cage rotors
12/09/1980US4238784 Electronic measuring system with pulsed power supply and stability sensing
12/09/1980US4238733 Corona discharge monitor system
12/09/1980US4238732 Method of qualifying diodes for a microwave power combiner
12/09/1980US4238686 Method of analyzing localized nonuniformities in luminescing materials
12/02/1980US4237415 Method and apparatus for measuring conductivity in electrical feedthrough
12/02/1980US4237379 Detecting imperfections in protective layer by coating with fluorescent dye and exposure to radiation
12/02/1980US4237198 Electrical device with bi-level battery state-of-charge indicator
12/02/1980US4236991 Electrochemical cells
11/1980
11/27/1980WO1980002599A1 Universal test fixture employing interchangeable wired personalizers
11/25/1980US4236246 Method of and apparatus for testing electronic circuit assemblies and the like
11/25/1980CA1090419A1 Fail-safe circuit for tap-changing transformer regulating system
11/18/1980US4234921 Tester for electronic engine control systems
11/18/1980US4234900 Ground fault detector
11/18/1980US4234840 Battery state-of-charge indicator
11/13/1980WO1980002492A1 Pulse motor driving apparatus for automatic testing system
11/13/1980WO1980002461A1 Automatic testing system for printed circuit boards
11/12/1980EP0018521A1 Device for the uninterrupted supply of alternating current to consumers
11/12/1980EP0018409A1 Method for producing a semi-conductor element
11/11/1980US4233560 Electrical apparatus for testing voltage, polarity and continuity
11/04/1980US4232383 Electronic timepiece battery monitoring circuit
11/04/1980US4232262 Connector contact terminal contamination probe
11/04/1980US4231372 Safety monitoring circuit for electrosurgical unit
11/04/1980US4231258 Method and apparatus for detecting foreign matters in gas sealed electric apparatus
11/04/1980CA1089031A1 Level sensitive embedded array logic system
10/1980
10/28/1980US4231104 Generating timing signals
10/28/1980US4231026 Battery discharge level detection circuit
10/28/1980US4230986 Apparatus for facilitating the servicing of printed circuit boards
10/28/1980US4230961 Magnetic flux sensor for laminated cores
10/28/1980US4229974 Petroleum and synthetic grease thermoparticulating coating
10/28/1980CA1088625A1 Arrangement for the synthetic testing of tripolar high-voltage circuit breakers
10/28/1980CA1088623A1 Device for the control of the charge and discharge of a battery
10/21/1980US4229694 Power angle relay to measure and respond to the power angle of a synchronous generator
10/21/1980US4229693 Method and apparatus for capacitance testing printed circuit boards
10/21/1980US4229691 Electrical testing of cords terminated with modular plugs
10/21/1980US4229688 Battery discharge indicator
10/21/1980US4229670 Integrated circuit having first and second internal circuits controlled by a common input terminal
10/21/1980CA1088234A1 Test circuit for a protective coupler
10/21/1980CA1088216A1 Ion-controlled diode
10/21/1980CA1088156A1 Test apparatus for primary checking of protective relays
10/21/1980CA1088154A1 Method and control device for a bank of batteries
10/15/1980EP0017608A2 Pace-maker battery condition-control circuit
10/15/1980EP0017467A1 Method of manufacturing acoustic surface wave device
10/15/1980EP0017091A1 Two-mode-shift register/counter device
10/15/1980EP0016951A1 Production of electric current flow patterns in conductors
10/14/1980US4228475 Ground monitoring system
10/14/1980US4228398 Method of testing distance relays
10/14/1980US4228394 Digital ohmmeter with electrical continuity tester
10/14/1980CA1087781A1 Organo-sulfur composition for forming thermoparticulating coating
10/14/1980CA1087742A1 Monitoring circuit
10/07/1980US4227149 Sensing probe for determining location of conductive features
10/07/1980US4227146 Cable tester for locating shorts discontinuities and reversals in multi-conductor cables
10/07/1980US4227145 Apparatus for detecting faults in electric cables
10/07/1980US4227030 Arc furnace electrode slip monitoring device
10/01/1980EP0016596A1 Semiconductor device having a monitor pattern and method of monitoring the same
10/01/1980EP0016177A1 Hybrid signature test method and apparatus
09/1980
09/30/1980US4225969 Method and apparatus for testing a frequency synthesizer in an RF modem
09/30/1980US4225958 Device comprising circuits for holding, in particular, a test data signal
09/30/1980US4225957 Testing macros embedded in LSI chips
09/30/1980US4225899 Ground detecting device
09/30/1980US4225819 Circuit board contact contamination probe
09/30/1980US4225817 Combined continuity and voltage test instrument
09/30/1980US4225792 Detector circuit
09/30/1980CA1086824A1 Telephone testing method and apparatus
09/23/1980US4224690 High speed parallel scanning means for testing or monitoring the assembly of multiwire harnesses
09/23/1980US4224612 Monitoring the condition of an insulator
09/23/1980US4224606 Fluid level detector test switch
09/23/1980US4224466 Combined data input and test circuit
09/23/1980CA1086030A1 Method of, and apparatus for, manufacturing electrical harnesses
09/17/1980EP0015579A1 Test station
09/16/1980US4223306 Device for detection of short circuits in industrial uses
09/16/1980US4223220 Method for electronically imaging the potential distribution in an electronic component and arrangement for implementing the method
09/16/1980US4222737 Burn-in trays for semiconductor circuits
09/16/1980US4222514 Digital tester
09/16/1980CA1085927A1 Combination high impedance continuity and voltage- indicating instrument
09/16/1980CA1085926A1 Circuit board testing apparatus
09/09/1980US4222047 Lamp failure detection apparatus
09/09/1980US4222005 Testing device for generator output voltage regulators
09/09/1980CA1085455A1 Static means for detecting ground insulation failure for rotary electric machines
09/03/1980EP0015226A2 Circuitry for memorizing the phase position of an alternating voltage
09/02/1980US4220951 Method and system for protecting barge
09/02/1980US4220919 Cathode ray tube display error measurement apparatus and method
09/02/1980US4220918 Radiation hardness testing for field effect devices
09/02/1980US4220917 Test circuitry for module interconnection network
09/02/1980US4220916 Method of and apparatus for determining the breakdown characteristics and size of membrane-sheathed particles such as cells
09/02/1980US4220913 Apparatus for and methods of electromagnetic surveying of elongated underground conductors
09/02/1980US4220912 Vehicle speed control circuit tester
09/02/1980US4220854 Method for the contactless measurement of the potential waveform in an electronic component and apparatus for implementing the method
09/02/1980US4220853 Method for the contactless measurement of the potential waveform in an electronic component and arrangement for implementing the method
09/02/1980CA1084996A1 Leak sensor and indicating system for vacuum circuit interrupters
08/1980
08/26/1980US4219798 Automotive on-board network electrical system with warning means to indicate trouble in the alternator of the system
08/26/1980US4219771 Four-quadrant, multiprobe-edge sensor for semiconductor wafer probing
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