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)
03/2014
03/26/2014CN103675640A Semiconductor P and N type non-contact test sensor
03/26/2014CN103675639A VDMOS component low-temperature long-distance on-line test system
03/26/2014CN103675638A Novel universal dynamic total dose test device and implementation method thereof
03/26/2014CN103675637A Power MOSFET health state assessment and residual life prediction method
03/26/2014CN103675636A Transistor threshold-voltage testing circuit
03/26/2014CN103675635A Device for testing reverse recovery time of high-frequency and high-voltage rectifier
03/26/2014CN103675634A Method for testing IGBT (Insulated Gate Bipolar Transistor) based on LabVIEW
03/26/2014CN103675633A Semiconductor device and detection method thereof
03/26/2014CN103675632A Cathode emission testing apparatus and system for microwave vacuum electronic devices
03/26/2014CN103675631A High-voltage holding test device for insulating instrument
03/26/2014CN103675630A Capacitor partial discharge ultrasound gating circuit
03/26/2014CN103675629A Electrode critical coronal voltage predicting method on basis of characteristic quantities of electric fields
03/26/2014CN103675628A Electric vehicle high-voltage insulation monitoring and protecting system and application method thereof
03/26/2014CN103675627A Photonic positioning ultraviolet detector
03/26/2014CN103675626A Photonic positioning ultraviolet detection method
03/26/2014CN103675625A Alternating-current voltage withstand test device of converter valve with direct-current offset and test method of alternating-current voltage withstand test device
03/26/2014CN103675624A Power-frequency voltage testing device and testing method of lightning arrester
03/26/2014CN103675623A Method and system for detecting partial discharging of GIS under impulse voltage
03/26/2014CN103675622A Device and method for testing partial discharge of IGBT module
03/26/2014CN103675621A Transformer bushing insulation life prediction device and transformer bushing insulation life prediction method
03/26/2014CN103675620A Insulation test device for porcelain insulator
03/26/2014CN103675619A Switch cabinet local discharge detecting instrument based on ultrahigh frequency antenna sensor
03/26/2014CN103675618A Switchgear partial discharge inspecting instrument with printing function
03/26/2014CN103675617A Anti-interference method for high-frequency partial discharge signal detection
03/26/2014CN103675616A Online partial discharge detection signal recognition method of cable
03/26/2014CN103675615A Ultra-wideband detection device for realizing zinc oxide arrester partial discharge detection and method thereof
03/26/2014CN103675614A Spark machine structure
03/26/2014CN103675613A Transformer station DC system movable type insulation supervision instrument
03/26/2014CN103675612A Sulfur hexafluoride electrical equipment integrated detector and application method thereof
03/26/2014CN103675611A Collection point positioning method and system in partial discharge detection for tubular insulating bus
03/26/2014CN103675610A Method for extracting characteristic factors in online local discharge detection
03/26/2014CN103675609A Power line patrol equipment and system
03/26/2014CN103675608A Computing method for cross circuit ungrounded fault points of parallel circuits
03/26/2014CN103675607A Lightning shielding failure and back flashover recognizing method of overhead power transmission line
03/26/2014CN103675606A Bridge type direct-current fault monitoring alarm
03/26/2014CN103675605A Small-current earth fault line selection method based on fault signal transient state correlation analysis
03/26/2014CN103675604A Breaking point and fault automatic detection and alarm system for communication cable
03/26/2014CN103675603A Insulator breakdown indicator
03/26/2014CN103675602A Method for discriminating lightning flashover and non-flashover of power transmission lines
03/26/2014CN103675601A Method for rapidly positioning power transmission line fault point through querying positive and negative accumulated spans
03/26/2014CN103675600A A power distribution network fault diagnosis system based on topology knowledge and a method
03/26/2014CN103675599A A fault wave-record-data-based frequency domain fault distance measurement method for a high-voltage direct current grounding electrode line.
03/26/2014CN103675598A Grid fault diagnosis result display method of linkage video monitoring system
03/26/2014CN103675597A Method of testing a fuse
03/26/2014CN103675596A Wire breakage detection circuit and temperature acquisition circuit
03/26/2014CN103675595A Short circuit detecting method for inner-layer circuit and outer-layer circuit of circuit board
03/26/2014CN103675594A Fault detection instrument of power source circuit
03/26/2014CN103675593A Electrification testing system and method for zinc oxide arrester in armored cabinet
03/26/2014CN103675592A Battery pack voltage sampling line detection circuit
03/26/2014CN103675591A Multipoint insulation fault detection circuit of power battery output bus
03/26/2014CN103675590A Non-contact electric leakage detector
03/26/2014CN103675589A Switch magnetic resistance motor power converter short-circuit fault bus current diagnosis method
03/26/2014CN103675588A Printed circuit element polarity machine vision detection method and device
03/26/2014CN103675587A Magnetic leakage field measuring type dry-type reactor on-line monitoring device and method
03/26/2014CN103675586A Testing method and system for long-distance multi-core cable
03/26/2014CN103675585A Electronic apparatus and method of controlling the same
03/26/2014CN103675584A A circuit board black pore conductivity test method
03/26/2014CN103675583A A single-side printed circuit board open circuit and short circuit testing apparatus
03/26/2014CN103675582A Method for the detection of shorted turns on salient poles of rotors of electric rotating machines
03/26/2014CN103675581A Electrical connection component and detection method thereof
03/26/2014CN103675580A Battery short circuit testing device
03/26/2014CN103675579A Remote-signaling acquisition circuit with DC grounding automatic wire-selecting function
03/26/2014CN103675578A Multifunctional portable circuit check instrument
03/26/2014CN103675577A IO reverse leakage detection realizing method and circuit in integrated circuit
03/26/2014CN103675576A Chip connection test system and method based on boundary scan
03/26/2014CN103675575A System and method for testing tested board card through single short dot group
03/26/2014CN103675574A Device and method for detecting pantograph of monorail vehicle
03/26/2014CN103675573A Quick positioning and digital display device of multiloop line faults and method thereof
03/26/2014CN103675572A Electric leakage detector
03/26/2014CN103675571A Main transformer secondary side short circuit indicator of electric locomotive
03/26/2014CN103675570A Three-phase detector of distribution line
03/26/2014CN103675569A Earth fault detection device and system for overhead line
03/26/2014CN103675568A Test fixture for RS422 interface loop
03/26/2014CN103675567A Short circuit detection method and short circuit detection circuit for 380V power transformation busbar
03/26/2014CN103675566A Circuit for detecting continuity of cable
03/26/2014CN103675565A Method for measuring power frequency parameters of superhigh/extrahigh-voltage alternating-current (direct-current) power transmission circuit
03/26/2014CN103675564A Direct-current short-time supply interruption and supply voltage leap simulation test device
03/26/2014CN103675563A Energy-saving multifunctional power test system
03/26/2014CN103675562A Method and device for detecting islanding effect
03/26/2014CN103675561A Automatic mouse testing device, cycle delivery mechanism and method thereof
03/26/2014CN103675560A Online identifying method for detuning of direct current side filter of high-voltage direct current transmission system
03/26/2014CN103675559A Simulative debugging platform special for frequency converter of building hoist
03/26/2014CN103675558A Performance test device for motor controller major loop of electric vehicle
03/26/2014CN103675557A Microprocessor-based relay protection testing device
03/26/2014CN103675556A Electric wire load test device
03/26/2014CN103675555A Power parameter measuring device based on visible light communication
03/26/2014CN103675554A Standby power source automatic switching device tester
03/26/2014CN103675553A Infrared remote controller performance tester
03/26/2014CN103675552A Testing system and method for interference resistance of cab signaling equipment
03/26/2014CN103675551A Multipoint random failure simulation method based on super-capacitors
03/26/2014CN103675550A General performance test load box for car radio cassette player
03/26/2014CN103675549A Semiconductor P and N type non-contact test device
03/26/2014CN103675548A Pulse charging and discharging performance testing device for non-solid electrolyte tantalum capacitor
03/26/2014CN103675547A Data transmission device
03/26/2014CN103675546A Single event effect detecting device of image sensor
03/26/2014CN103675545A Silicon carbide rod test machine
03/26/2014CN103675544A Power system fault signal detection and waveform identification method based on optimization algorithm
03/26/2014CN103675543A Monitoring system of circuit loading
03/26/2014CN103675542A Automatic detection system of electric changeover valve of refrigerator
03/26/2014CN103675541A Auxiliary device for RFID reader-writer aging tests
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