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)
11/1989
11/14/1989US4881026 Prediction of degradation of cell by power storage plant with ac/dc inverter
11/14/1989US4880395 Contact on test switch
11/14/1989CA1262934A1 Device for indicating the charge status of a battery
11/14/1989CA1262885A1 Apparatus for automated testing of surface mounted components
11/09/1989EP0220280A4 Portable tester and related method for determining the primary winding to secondary winding current ratio of an in-service current transformer.
11/09/1989DE3913219A1 Integrierte halbleiterschaltung und verfahren zum testen derselben Integrated semiconductor circuit and method for testing the same
11/09/1989DE3812997A1 Method for picking out a cable and a device for carrying it out
11/09/1989DE3807147A1 Verfahren und anordnung zur messung des zeitlichen verlaufs eines periodischen signals mit hoher zeitaufloesung nach einem boxcar-aehnlichen verfahren The method and process arrangement for measuring the temporal course of a periodic signal with high time resolution according to a similar boxcar
11/08/1989EP0341117A1 Interruption and short circuit detecting appliance
11/08/1989EP0341108A1 Motor pump assembly comprising a flushed rear-bearing system combined with an electrical rotation direction detector
11/08/1989EP0341001A1 A method for fabricating large semiconductor chips
11/08/1989EP0340895A2 Improvements in logic and memory circuit testing
11/08/1989EP0340694A2 Test pattern generator
11/08/1989EP0340282A1 Two-mode driver circuit
11/08/1989CN2047390U Pocket type megohmmeter
11/08/1989CN2047389U Multi-functional electronic test pencil
11/08/1989CN2047388U Detection table for household appliances
11/08/1989CN2047387U Checker for checking the no. of plug (socket), no of its pins and no. of its connected wire
11/08/1989CN2047385U Mutli-functional vehicle and ship test pencil
11/07/1989US4879718 Scan data path coupling
11/07/1989US4879717 Testable carriers for integrated circuits
11/07/1989US4879688 In-system programmable logic device
11/07/1989US4879661 Bi-directional circuit to interface between a low current device and high current tester
11/07/1989US4879622 Circuit for monitoring a superconducting magnet winding
11/07/1989US4879476 Method and apparatus for transmitting signals
11/07/1989EP0270617A4 Programmable logic array.
11/02/1989WO1989010639A1 Static-free interrogating connector for electric components
11/02/1989WO1989008266A3 Measurement of the variation in time of a periodic signal
11/02/1989EP0340137A2 Method and apparatus for testing three state drivers
11/02/1989EP0339407A2 Procedure for operating an electrical consumer
11/02/1989EP0339286A2 Test system for acquiring, calculating and displaying representations of data sequences
11/02/1989DE3913180A1 Stoerungsanzeiger fuer elektrische nutzleitungen Stoerungsanzeiger for Electric Utility line
11/02/1989DE3816047A1 Circuit arrangement for acoustic partial-discharge detection
11/01/1989CN2047029U Test pencil with pulse generating and logical test function
11/01/1989CN2047028U Avometer capable of surveying scr
11/01/1989CN2047026U Electronic luminescence sounding test pencil
11/01/1989CN1036865A Method for charging a nickel-cadmium accumulator and simul-taneously testing its condition
11/01/1989CN1036839A Circuit freakers test device
10/1989
10/31/1989US4878209 Macro performance test
10/31/1989US4878179 Interactive diagnostic methodology and apparatus for microelectronic devices
10/31/1989US4878164 Power supply gradually developing an output voltage when switched on
10/31/1989US4878142 High resistance ground fault protection
10/31/1989US4878025 Trouble finder for testing an electrical system of a vehicle for short-circuiting
10/31/1989US4877326 Method and apparatus for optical inspection of substrates
10/31/1989CA1262566A1 Immediately testable superconductor joint
10/26/1989DE3905422A1 Device for the inductive interrogation and power-feeding of an isolated circuit with electrical load
10/26/1989DE3812433A1 Method for identifying the fault location on an electrical cable
10/26/1989DE3812432A1 Method and device for determining the fault location on an electrical line
10/26/1989DE3811854A1 Device for four-pin contacting
10/25/1989EP0338413A2 Method and apparatus for testing an airbag restraint system
10/25/1989EP0338220A2 Logic circuits of the multiplexer-type
10/25/1989EP0324012A4 Shorted-coaxial-cable detector for local-area networks.
10/25/1989CN2046637U Fault detector for digital logic circuit
10/25/1989CN2046636U Testing parts of relay protection device
10/25/1989CN2046635U Multi-function electronic megohmmeter
10/25/1989CN2046634U Electroscope for integrated circuit
10/25/1989CN2046633U Electronic wire matching instrument
10/24/1989US4876704 Logic integrated circuit for scan path system
10/24/1989US4876702 Programmable time advance
10/24/1989US4876685 Failure information processing in automatic memory tester
10/24/1989US4876661 Arithmetic logic system capable of checking carry look-ahead circuit
10/24/1989US4876632 Flashlight with battery life indicator module
10/24/1989US4876513 Dynamic state-of-charge indicator for a battery and method thereof
10/24/1989US4876501 Method and apparatus for high accuracy measurment of VLSI components
10/24/1989US4876457 Method and apparatus for differentiating a planar textured surface from a surrounding background
10/24/1989US4875859 Method and apparatus for guiding a user during setup of a signal measurement system
10/24/1989US4875409 Magnetic print hammer actuator protection circuit
10/24/1989EP0317578A4 Tri-state circuit tester.
10/24/1989CA1262470A1 Method for monitoring a heater
10/19/1989DE3807361A1 Test device for electrical apparatus
10/18/1989EP0337761A2 Semiconductor integrated circuit
10/18/1989EP0337235A1 Appliance for testing electrical protection relays during operation
10/18/1989EP0337171A1 Method for the contactless measuring of a resistor arranged in the secondary circuit of a transmitter, and device for carrying out the method
10/18/1989EP0337106A2 Embedded array access time test
10/18/1989EP0337023A1 Decompaction of stored test data in automatic test systems
10/18/1989CN2046227U Multiway electric motor fault alarm
10/18/1989CN2046226U Liquid crystal screw -driver with voltage tester
10/18/1989CN2046225U Multifunction screw-driver with voltage tester
10/18/1989CN2046224U Domestic multifunction energy-saving and anti-theft automatic protective apparatus
10/17/1989US4875210 Automatic circuit tester control system
10/17/1989US4875209 Transient and intermittent fault insertion
10/17/1989US4875133 Simulating staticelectricity discharges
10/17/1989US4875116 Transducer position control system for data transfer apparatus employing disklike record media
10/17/1989US4875006 Ultra-high-speed digital test system using electro-optic signal sampling
10/17/1989US4875005 Mechanism for turning over a test head of a wafer probing machine
10/17/1989US4875004 High speed semiconductor characterization technique
10/17/1989US4875003 Non-contact I/O signal pad scan testing of VLSI circuits
10/17/1989US4875002 Method of testing semiconductor wafers
10/17/1989US4874956 Method and apparatus for inspecting semiconductor devices for their bonding status
10/17/1989US4874907 Printed circuit board
10/17/1989US4874086 Film carrier and a method for manufacturing a semiconductor device utilizing the same
10/17/1989EP0240519A4 Testing apparatus.
10/17/1989CA1262373A1 Testing of telecommunication cables
10/12/1989DE3810432A1 Method and device for determining the dynamic convergence error in a colour picture tube
10/12/1989DE3810157A1 Monitoring of electrical devices
10/12/1989DE3809580A1 Elektronische einrichtung Electronic device
10/12/1989DE3809436A1 Method and device for detection of current and automatic prevention of missetting of the nominal current values in electric motors
10/11/1989EP0336814A1 Device and method for thermical measuring of a bipolar transistor under operation
10/11/1989EP0336656A2 Method and apparatus for defining test sequences for a signal measurement system
10/11/1989EP0336638A2 Transient and intermittent fault insertion
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