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)
03/2013
03/27/2013CN102998586A Power system fault indicator
03/27/2013CN102998585A Zero line and live line detection module
03/27/2013CN102998584A Network interface tester
03/27/2013CN102998583A Method for judging line breaking of neutral line of voltage circuit
03/27/2013CN102998582A Detection method of distributing line phase short circuit fault and single phase grounding fault
03/27/2013CN102998581A Detecting device for resettable fuses of lead-acid batteries
03/27/2013CN102998580A Method for detecting connection state of security system video connectors
03/27/2013CN102998579A Voice prompt detector of parking lot management system
03/27/2013CN102998578A Method for detecting videos in intelligent home system
03/27/2013CN102998577A System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid
03/27/2013CN102998576A Connector connection checking circuit and method, display device and manufacturing method thereof
03/27/2013CN102998575A Electric leakage sensing apparatus
03/27/2013CN102998574A Resolver failure detecting system for driving engine of vehicle
03/27/2013CN102998573A Electric arc fault protector inspection device
03/27/2013CN102998572A Playback device and method for recording power qualities
03/27/2013CN102998571A Real time digital simulator (RTDS) testing method of fault current limiter
03/27/2013CN102998570A Device and method for testing temperature rising characteristics of nonlinear resistors of generator de-excitation systems
03/27/2013CN102998569A Portable detector for power amplifier faults
03/27/2013CN102998568A Performance testing method and testing device of inverter circuit
03/27/2013CN102998567A Intelligent power equipment
03/27/2013CN102998566A Test device for high temperature superconduction current leading wire
03/27/2013CN102998565A Assembly line integrated device for electronic product tests
03/27/2013CN102998564A Full power trial method for inhibiting zero sequence direct-current component
03/27/2013CN102998563A Inspection device of isolator
03/27/2013CN102998562A Power quality monitoring system based on International Electrotechnical Commission (IEC) 61850 communication protocol
03/27/2013CN102998561A Device and system for detecting line loss
03/27/2013CN102998560A Method for mutually testing high-speed analog to digital converter (ADC) interface and general purpose input/output (GPIO) interface
03/27/2013CN102998559A Island detection method and device and electric system
03/27/2013CN102998558A Test device for mouse
03/27/2013CN102998557A Onboard unit in ETC (electronic toll collection) system, and system and method for testing onboard unit
03/27/2013CN102998556A Device and method for super-fast transient overvoltage simulation of metal oxide voltage limiter
03/27/2013CN102998555A Comprehensive automatic telemetry information tester of substation
03/27/2013CN102998554A ARM-based (Advanced RISC Machines-based) power quality detection device
03/27/2013CN102998553A Method and device for determining test sets of operating parameter values for an electronic component
03/27/2013CN102998552A Evaluation board
03/27/2013CN102998551A SD (secure digital) card plug in-out detector
03/27/2013CN102998550A Plugging detection machine for network connector plugs
03/27/2013CN102998549A H-bridge based single-phase low voltage ride-through test bed
03/27/2013CN102998548A Fast testing method and testing device for voltage transformer excitation characteristics
03/27/2013CN102998547A Method and system for monitoring base station antenna element and integrated monitoring device
03/27/2013CN102998546A Alternating current line emulator
03/27/2013CN102998545A Online transformer winding work state monitoring method
03/27/2013CN102998544A Method for diagnosing operating state of windings in short-circuiting of transformer
03/27/2013CN102998543A Method and device for evaluation of unit regulation performance
03/27/2013CN102998542A Mobile intelligent high-voltage testing system
03/27/2013CN102998541A Automatic connecting line measurement method and automatic connecting line measurement device
03/27/2013CN102998510A Voice prompt detection method for park management system
03/27/2013CN102998488A Motor performance testing device with high-strength equivalent weight support
03/27/2013CN102998420A Online monitoring device for gas in transformer oil
03/27/2013CN102998135A Cordless electric iron plugging testing machine
03/27/2013CN102998072A Sway testing device
03/27/2013CN102997990A Power transmission line audible noise and radio disturbance long-time measurement system and method
03/27/2013CN102354869B Electricity leakage protection plug with alarm device
03/27/2013CN102288891B Method for extracting parameters of solar cell
03/27/2013CN102193071B Fault monitoring circuit for state of positive-negative power supply of extension set
03/27/2013CN102183709B Method of determining fault point of power grid and severity of fault
03/27/2013CN102176157B Mutual inductance type real-time on-line diagnosis and repair system for reliability of long-distance multi-node train line and use method thereof
03/27/2013CN102159960B Testing device and interdomain synchronization method
03/27/2013CN102156240B Regional electric network failure diagnosis method based on five-layer and three-region cause and effect rule network
03/27/2013CN102142386B Device processor
03/27/2013CN102141590B Method for electrical detection on wire harnesses of different sizes and universal test fixture
03/27/2013CN102130650B Method for testing and adjusting single-phase capacitor motor
03/27/2013CN102121967B Diagnostor for predicting operation state of three-phase rotating electromechanical equipment in time
03/27/2013CN102095946B General electrical testing device for packaging structures
03/27/2013CN102081145B Functional verification platform of battery management system
03/27/2013CN102081144B Device and system for monitoring and alarming faults of storage battery
03/27/2013CN102053106B Defect detection method
03/27/2013CN102045042B Frequency signal generating method for testing of semiconductor element
03/27/2013CN102035223B Output power tracking control method and device
03/27/2013CN102033184B Voltage distribution wireless measurement system of lightning arrester
03/27/2013CN102004220B Method and system for testing chips
03/27/2013CN102004217B Circuit structure capable of reducing influence of test and testing method thereof
03/27/2013CN101943741B Apparatus for testing integrated circuit
03/27/2013CN101937030B 基板检查方法 Substrate inspection method
03/27/2013CN101866792B Test assembly for a circuit breaker
03/27/2013CN101858945B Laboratory icing simulating test method of optical power ground wires (OPGWs)
03/27/2013CN101839951B Test method of radio frequency generator and equipment thereof
03/27/2013CN101815952B Tempering chamber for tempering electronic components in particular IC's
03/27/2013CN101806858B Mounted component inspection apparatus, component mounting machine comprising the mounted component inspection apparatus, and mounted component inspection method
03/27/2013CN101800490B Photoelectric cell device and malfunction determining method
03/27/2013CN101782620B Circuit query machine of mine safety monitoring system
03/27/2013CN101779136B Apparatus and method for sensing battery cell voltage using isolation capacitor
03/27/2013CN101777936B Surge immunity test method of high-speed signal wire
03/27/2013CN101776732B DC converter valve minimum triggering angle running test method
03/27/2013CN101776729B Portable automatic test fixture
03/27/2013CN101681392B Constrained random simulation coverage closure guided by a cover property
03/27/2013CN101680931B Temperature monitor for bus structure flex connector
03/27/2013CN101578526B Integrated time and/or capacitance measurement system, method and apparatus
03/27/2013CN101546917B Composite solar battery charger for displaying power supplying efficiency in real time
03/27/2013CN101501515B Obtaining test data for a device
03/27/2013CN101493490B Terminal port insertion detection circuit
03/27/2013CN101441247B Automatic device for circuit breaker short circuit combining and separating tests
03/27/2013CN101387687B Drive unit for an inspection vehicle and also inspection vehicle with such a drive unit
03/27/2013CN101366162B Electronic overload relay for mains-fed induction motors
03/27/2013CN101344578B Method and device for diagnosis of output parameter of DC machine
03/27/2013CN101262194B A motor parameter marking method for mixed dynamic motor
03/27/2013CN101029919B Compressed logic sample storage
03/26/2013US8407657 Flexible test fixture
03/26/2013US8407642 Leak current calculation apparatus and method for calculating leak current
03/26/2013US8407544 Method and apparatus for AC scan testing with distributed capture and shift logic