Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
10/2012
10/09/2012US8285503 Balanced two-conductor time domain reflectometer
10/09/2012US8285495 Corrosion inspection and monitoring system
10/09/2012US8284108 Method of measuring radiation characteristic of antenna
10/09/2012US8283933 Systems and methods for built in self test jitter measurement
10/09/2012US8283932 Noise measurement system in power stabilization network, variable filter applied to the same, and method for measuring noise in power stabilization network
10/09/2012US8283809 Detecting device for detecting an operating mode of a system and detecting method thereof
10/04/2012WO2012132904A1 Electric field measuring device
10/04/2012WO2012130894A1 Method and apparatus for free-space radio signal measurement
10/04/2012WO2012129850A1 Method for reconstructing outer mode field of multiple input multiple output antenna channels
10/04/2012US20120253721 Determining characteristics of ultrashort pulses
10/04/2012US20120249381 Radio frequency printed circuit board
10/04/2012DE102011015917A1 Verfahren zur Freiraum-Funksignalmessung sowie Freiraum-Funksignalmesseineinrichtung hierzu Method for free-space radio signal measurement and space-Funksignalmesseineinrichtung this
10/03/2012CN202471846U Capacitor discharge tooling with indication
10/03/2012CN202471842U Piezoelectric material property automatic test system
10/03/2012CN202471841U Current source setting time detecting circuit
10/03/2012CN202471840U Electrostatic detection platform used for grounding-free equipment with non-metallic shell
10/03/2012CN202471828U Voltage sampling circuit suitable for dual-power automatic transfer switch and controller
10/03/2012CN102711291A 3G (The 3rd generation telecommunication) wireless routing device with electromagnetic radiation detection function
10/03/2012CN102707160A Electromagnetic environment automated testing device for aviational radio navigation station and method thereof
10/03/2012CN102707159A Radiated emission testing and calibrating method used in pre-compatible laboratory
10/03/2012CN102707158A Method for testing molten drops of vacuum consumable electrode arc furnace based on saturable reactor stabilized current supply
10/03/2012CN102707157A Single-frequency impulse signal parameter estimating method based on power spectrum
10/03/2012CN101828131B Noise-radio-wave automatic separation/detection device
10/03/2012CN101629978B Method and circuit for realizing real-time monitoring for duty ratio
10/02/2012US8280690 Signal processing method and unit for a dimension-gauging system
10/02/2012US8279104 Radio wave absorber, electromagnetic field measurement system and radiated immunity system
09/2012
09/27/2012WO2012129430A2 High dynamic range rf power monitor
09/27/2012WO2012126272A1 Full-view lightning event observation system and method
09/27/2012US20120242349 Capacitance detecting device
09/27/2012US20120242325 Gel Probe Photocurrent Measurement Device and Methods of Use Thereof
09/26/2012CN202453429U Phase verification instrument
09/26/2012CN202453428U Audible and visual alarming device for open phase of dry-type transformer
09/26/2012CN202453427U Regional environment electromagnetic radiation level monitoring system
09/26/2012CN102692568A Antenna beamwidth calibration method and device with sun as signal source
09/26/2012CN101777755B High-voltage capacitor imbalance protecting method for high-voltage DC transmission system
09/20/2012US20120239328 Waveform analyzer and waveform analysis method
09/19/2012EP2499505A1 Device and method for controlling energy
09/19/2012CN202443074U Magnetic shielding testing coil
09/19/2012CN202443073U Dual-probe system for calibrating field uniformity of transient electromagnetic field
09/19/2012CN202443072U Electromagnetic radiation monitoring device
09/19/2012CN202443060U Simple AC commercial power state indication circuit
09/19/2012CN102684554A Method for detecting system transient characteristic waves for shared network control on photovoltaic micro-grid
09/19/2012CN102683146A Four-dimensional electronic shadow imaging device
09/19/2012CN102681724A System and method for background noise measurement and frequency selection in touch panel sensor
09/19/2012CN102680808A Digitized gapless phase noise measurement method based on group phase characteristic processing
09/19/2012CN102680807A Optical fiber digitized remote phase-checking system and phase-checking method thereof
09/19/2012CN102680806A Detection method and detection device for three-phase alternating-current phase sequence
09/19/2012CN102680805A Wireless digital electric field strength monitoring sensor
09/19/2012CN102680804A Lightning electric field change signal measuring system and method
09/19/2012CN102680803A Real-time monitoring microwave dicke radiometer based on reference load temperature
09/19/2012CN102680802A Compact range generation device
09/19/2012CN102680801A Method and device for measuring electromagnetic property of super material unit structure
09/19/2012CN102680800A Three-dimensional scanning system for magnetic fields
09/19/2012CN102680536A Vacuum self-electricity-consumption arc furnace molten drop test method based on a silicon-controlled power supply
09/19/2012CN101839949B High frequency circuit radiation electromagnetic inference analysis method
09/19/2012CN101501508B System for measuring the radiation pattern of a transmission antenna
09/18/2012US8271222 Sampling apparatus and sampling method
09/18/2012US8271219 Deterministic component model identifying apparatus, identifying method, program, recording medium, test system and electronic device
09/13/2012US20120229168 Noise reduction circuit and semiconductor device provided with noise reduction circuit
09/13/2012US20120229121 System and method for detecting surface perturbations
09/12/2012CN202433454U Frequency converter load testing platform with electric energy feedback function
09/12/2012CN102667506A Measuring phase noise in radio frequency, microwave or millimeter signals based on photonic delay
09/12/2012CN102662111A Piezoelectric coefficient detection method
09/12/2012CN102657391A Maternity dress with radiation protection and intelligent alarming functions
09/12/2012CA2770908A1 Power line proximity monitoring system and method
09/11/2012US8264233 Magnetoresistive electrostatic discharge (ESD) detector
09/07/2012WO2012117147A1 Over-the-air test
09/06/2012DE102010045363B4 Elektrostatischer Halbleitersensor Electrostatic semiconductor sensor
09/05/2012EP2494720A1 Over-the-air test
09/05/2012CN202424125U Phase sequence regulator for three-phase power supply
09/05/2012CN202421353U Power distribution network failure detection system
09/05/2012CN202421349U Electric field strength detection circuit
09/05/2012CN202421348U Antenna far-field pattern spectrometer multi-point frequency-sweeping measuring system
09/05/2012CN202421347U Electromagnetic field detection module
09/05/2012CN202421346U Anti-radiation detection and alarm device
09/05/2012CN202421345U Portable microwave energy detection device
09/05/2012CN102654537A Alternating current-direct current space charge measuring system and method capable of improving pulsed electro-acoustic method
09/05/2012CN101881799B Grounding net distribution detector
08/2012
08/30/2012WO2012114291A1 A system for measuring electrical charge
08/30/2012WO2012113585A1 Method and device for measuring the phase noise spectrum of a pulsed sinusoidal signal
08/30/2012US20120218002 System and method for on-chip jitter and duty cycle measurement
08/30/2012US20120217980 Test device and test method for measuring a phase noise of a test signal
08/30/2012US20120217979 Electromagnetic generating device for testing electromagnetic compatibility
08/30/2012US20120217978 Background noise measurement and frequency selection in touch panel sensor systems
08/29/2012EP2493156A1 Mobile device with proximity sensor
08/29/2012EP2492700A1 Test system and method of testing battery pack
08/29/2012EP2491410A1 Electrical appliance which can be supplied by an ac power network and fault detection method
08/29/2012CN202404162U Inverse piezoelectric coefficient device for measuring piezoelectric material based on symmetrical metal waveguide
08/29/2012CN202404161U Antenna far field testing system
08/29/2012CN101887082B Three-phase power input phase-loss detection circuit
08/29/2012CN101213462B Electric field/magnetic field sensor and method for fabricating them
08/28/2012US8254848 Monitoring system for distributed antenna systems
08/23/2012WO2012110418A1 Method and system for measuring electrical quantity in electrical network
08/23/2012US20120212211 Polyphase power distribution and monitoring apparatus
08/23/2012DE102011004572A1 Verfahren und Vorrichtung zur Messung des Phasenrausch-Spektrums eines gepulsten Sinussignals Method and apparatus for measuring phase noise spectrum of a pulsed sinusoidal signal
08/22/2012EP2490031A1 Method and system for measuring an electrical quantity in an electrical network
08/22/2012EP2488882A2 Electromagnetic field detection systems
08/22/2012CN202393848U Remote online monitoring device for high-voltage electrostatic oil smoke purifying equipment
08/22/2012CN202393839U Circuit jointly used for synchronous default phase detection of control power supply and three-phase power supply
08/22/2012CN202393838U 高压脉冲采集器 High-voltage pulse acquisition
1 ... 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ... 120