Patents
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)
06/1990
06/27/1990EP0374998A1 Method and apparatus for diagnosing defects on electric or electronic casings in a motor vehicle
06/27/1990EP0374476A2 Connector for connecting flexible film circuit carrier to board or card and use thereof
06/27/1990EP0374466A1 In-line process monitors for thin film wiring
06/27/1990EP0374434A1 Electrical test fixture
06/27/1990EP0374274A1 Method for verification of VLSI-chip data
06/27/1990EP0374228A1 Control and monitoring circuit for electrical seat heaters, in particular in motor vehicles
06/27/1990CN1043394A Computerized pulse remote-detector for line failure
06/27/1990CA2006389A1 Ic socket
06/26/1990US4937826 Method and apparatus for sensing defects in integrated circuit elements
06/26/1990US4937765 Method and apparatus for estimating fault coverage
06/26/1990US4937700 Semiconductor integrated circuit with a circuit limiting an input voltage to a predetermined voltage
06/26/1990US4937698 System for foreseeing deterioration in interrupting performance of vacuum interrupter
06/26/1990US4937659 Interconnection system for integrated circuit chips
06/26/1990US4937658 Interconnection system for integrated circuit chips
06/26/1990US4937529 Electrical conductor identifying assembly
06/26/1990US4937528 Method for monitoring automotive battery status
06/26/1990US4937519 Apparatus and method for identifying conductors
06/26/1990US4937203 Providing temporary connections for high speed testing
06/26/1990CA1270962A1 Adjustable quick-mount test probe assembly
06/23/1990CA2006367A1 Method of testing connecting and/or switching devices and/or lines
06/22/1990CA2006602A1 Device for automatically ascertaining capacitance, dissipation factor and insulation resistance of a plurality of capacitors
06/21/1990DE3942165A1 Fehlererfassungseinrichtung fuer elektrische schaltungen Error detection means for electrical circuits
06/21/1990DE3942164A1 Fehlererfassungeinrichtung fuer elektrische schaltungen Error detection means for electrical circuits
06/21/1990DE3941495A1 Measurement and test arrangement of electromechanical transducer - has programmable voltage-current supply and measurement and storage devices under automatic control for testing motor or generator
06/20/1990EP0373794A2 Driver circuit for in circuit tester
06/20/1990CN2058498U Testing device for circuit fault of motor vehicle
06/20/1990CN2058496U Multifunctional safety device for electric measurement
06/20/1990CN2058495U Multipurpose test pencil
06/20/1990CN1043202A Automatic alarm for leakage danger voltage
06/20/1990CN1008504B Method for detecting and correcting failure in mounting of electronic parts on substrate and apparatus therefor
06/19/1990US4935929 Diagnostic circiut for digital systems
06/19/1990US4935839 Electrostatic discharge testing device
06/19/1990US4935699 Means to detect and locate pinching and chafing of conduits
06/19/1990US4935695 Board alignment system
06/19/1990US4935694 Probe card fixture
06/19/1990US4934677 Holder for electronic devices
06/19/1990US4934064 Alignment method in a wafer prober
06/19/1990CA2004136A1 Extraneous frequency detector
06/19/1990CA1270523A1 Phase identifier
06/14/1990WO1990006522A1 State-of-charge indications
06/14/1990WO1990006521A1 Testing of analogue circuits in semiconductor devices
06/14/1990WO1990006520A2 Electrographic process for generating an electrical image signal
06/14/1990WO1990006519A1 Apparatus and method for current sensing
06/13/1990EP0373069A1 Checking process for a completed printed-circuit board, in particular for checking the components of the circuit board, and apparatus to carry out this process
06/13/1990EP0372812A2 Method and apparatus for inspecting solder joints
06/13/1990EP0372349A1 Functional locking cabinet for a medium tension switchgear
06/13/1990EP0372226A2 Parallel pseudorandom pattern generator with varying phase shift and method for simulating such a generator
06/13/1990EP0372168A2 Defect detection using intermodulation signals
06/13/1990DE3900370C1 Synthetic circuit for testing the breaking power of high-voltage circuit breakers
06/13/1990CN1043002A Double-freq and double-fed analog thermometry technology for wire-winding asynchronous motors
06/13/1990CN1043001A Analog measurement technology of operation characteristics of asynchronous motors
06/13/1990CN1043000A Double -freq. feeding and negative-phase sequence analog thermometry technology for stators of asynchronous motors
06/12/1990US4933962 Continuity test set with voice communication
06/12/1990US4933635 In-line process monitors for thin film wiring
06/12/1990US4933628 Voltage detecting device
06/12/1990US4933552 For analyzing a sample
06/12/1990US4932246 Diagnostic fault test system and circuit
06/12/1990CA1270312A1 Appliance system
06/07/1990DE3841769C1 Circuit for ensuring the provision of starting energy in motor vehicles with internal combustion engines
06/06/1990EP0371672A1 Antistatic mask for use with electronic test apparatus
06/06/1990EP0371662A2 Remote testing of metallic loops with a trans hybrid signal
06/06/1990EP0371656A2 Sequence of events detector for one or more digital signals
06/06/1990EP0371336A2 Method and apparatus for electrostatic discharge testing of machines which repetitively execute a stored program with a plurality of program steps
06/06/1990EP0371087A1 Apparatus for inspecting wafers
06/05/1990US4931791 Shorted-coaxial-cable detector for local-area networks
06/05/1990US4931741 Branched sensor system
06/05/1990US4931738 Battery monitoring system of cell groups and display
06/05/1990US4931737 Circuit for measuring the capacity of a battery
06/05/1990US4931723 Automatic test system having a "true tester-per-pin" architecture
06/05/1990US4931722 Flexible imbedded test system for VLSI circuits
06/05/1990US4931721 Device for automatically ascertaining capacitance, dissipation factor and insulation resistance of a plurality of capacitors
06/05/1990US4931684 Digitally scanned extended electron source in vacuum
06/05/1990US4930890 Method and apparatus for detecting through-hole voids in multi-layer printed wiring board
06/05/1990US4930874 Liquid crystal display device
06/05/1990CA1270069A1 Probe card with reconfigurable circuitry
05/1990
05/31/1990WO1990005919A1 Coupling unit for monitoring high-voltage installations by means of partial discharges
05/31/1990DE3939630A1 System zur erfassung von anormalitaeten bei elektrischen schaltungen System for detecting abnormalities in electrical circuits
05/31/1990DE3916924C1 Testing electro-optical qualities of semiconductor components - combining several edge-emitting components on wafer and detecting emitted light by opto-electric transducer
05/31/1990DE3840225A1 Test structure and method for measuring the dynamic loading of transistors contained in an integrated circuit
05/31/1990DE3839790A1 Test set for determining the breakdown strength of insulation media
05/30/1990EP0370647A1 Microcomputer controlled resistance fault locator circuit
05/30/1990EP0370322A2 Method and apparatus for alignment of images
05/30/1990EP0370194A2 Reconfigurable register bit slice
05/30/1990EP0214239B1 Method and circuit for detecting a fault condition
05/30/1990CN1008218B Dynamic analytic device of semiconductor rectifying element and its analytic method
05/29/1990US4929932 Solid state relay having visual contact monitor
05/29/1990US4929931 Battery monitor
05/29/1990US4929903 Method of and apparatus for assessing insulation conditions
05/29/1990US4929902 Multiple size cable testing device
05/29/1990US4929901 DC ground fault detection
05/29/1990US4929900 Method for locating conductive faults in telephone and similar cables
05/29/1990US4929893 Wafer prober
05/29/1990US4929889 Data path chip test architecture
05/29/1990US4929888 Pin electronics device having a phase adjustment function for IC testers and phase adjustment method therefor
05/29/1990US4929887 Electrical outlet monitor
05/29/1990US4929831 Electron beam apparatus for testing infrared detectors in a cryogenically shielded environment
05/29/1990CA1269758A1 Electronic test fixture with cassette system
05/29/1990CA1269704A1 Fault diagnosis system for rotor winding of rotary electric machine
05/29/1990CA1269547A1 Remote measurement of conditions
05/23/1990EP0369921A2 Identification of defects in emitter-coupled logic circuits