Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
04/2011
04/06/2011CN101493486B Apparatus and method for diagnosing electromagnetic interference
04/06/2011CN101419247B Ground ion flow density measurement system for AC/DC parallel powerline and measurement method thereof
04/06/2011CN101349720B High pressure overhead power line power frequency electric field shielding analysis method
04/06/2011CN101345410B Design method for judging out-of-step separation based on application compensating impedance principle
04/06/2011CN101345409B Design method for judging out-of-step separation based on in-place active/idle work variable quantity
04/06/2011CN101038313B Method for measuring RARTUT specific absorption rate in MAT
04/05/2011US7920975 Methods of detecting anomalies in ambient alternating current fields
04/05/2011US7919991 Comparator circuit
03/2011
03/31/2011WO2011038166A2 Measuring phase noise in radio frequency, microwave or millimeter signals based on photonic delay
03/31/2011US20110077884 Internal coaxial cable connector integrated circuit and method of use thereof
03/31/2011US20110074385 Semiconductor integrated circuit
03/31/2011US20110073447 Radiant Energy Imager Using Null Switching
03/31/2011CA2772941A1 Measuring phase noise in radio frequency, microwave or millimeter signals based on photonic delay
03/30/2011EP2300837A2 Rf shielded enclosure for automated testing
03/30/2011CN201780650U High-voltage transmission line alarm of wagon drill
03/30/2011CN201780354U Evaluating instrument for monitoring on-line state of electrical cable by utilizing ultraviolet method
03/30/2011CN1963477B Method and apparatus for non-contact serial measurement of uniformity of n index of superconducting line/ strip steel rolled stock
03/30/2011CN101995520A Antenna testing device and antenna testing method
03/30/2011CN101458283B Experimental bench for diagnosing radiation EMI mechanism and radiation EMI mechanism simple diagnostic method
03/30/2011CN101344547B Capacitance imaging sensor with asymmetric combined electrode structure
03/30/2011CN101191806B Apparatus and method for testing automobile electromagnetic sensitivity
03/29/2011US7917320 Digital signal processing in optical systems used for ranging applications
03/29/2011US7917175 Device and method for remotely measuring and monitoring antenna system using mobile terminal
03/29/2011US7915897 Foil-leaf electrometer for static field detection with permanently separating leaves
03/24/2011WO2010141210A4 Method and system for chopped antenna impedance measurements with an rfid radio
03/24/2011WO2010026274A8 Multiple-input, multiple-output analyser
03/24/2011DE102009029447A1 Vorrichtung und Verfahren zur Erfassung von elektromagnetischer THz-Strahlung Apparatus and method for detecting electromagnetic radiation THz-
03/23/2011CN201773155U Portable electromagnetic radiation strength display device
03/23/2011CN201773154U Feed type microwave radiodetector adopting coaxial structure
03/23/2011CN201773141U LCD induction type high-voltage electrified display device
03/23/2011CN101988938A Antenna test system, test method and test tool
03/23/2011CN101287993B Lightning detection
03/17/2011WO2011031186A1 Fiber-optic detector for detecting threats of verbal information leaks
03/17/2011WO2011030796A1 Electromagnetic field sensor, and receiver
03/17/2011WO2011029464A1 Fault detection in energy supply networks having an unearthed or resonant-earthed star point
03/17/2011DE102009033827B3 Unloading device for contactless dismantling of electrostatic loads on isolating materials, comprises electrode, which is attached on positive and negative high voltage source
03/16/2011EP2295992A1 Device to detect and measure static electric charge
03/16/2011CN201766343U Integrated three-phase high-tension current transformer with voltage signal acquiring function
03/16/2011CN201765284U Test tool for detecting shielding performance of material
03/16/2011CN201765278U Online checking and measuring instrument for detecting TA variable ratio at low tension side and high-tension metering device
03/16/2011CN201765277U Judging device for motor phase failure
03/16/2011CN201765267U Induction voltage and induction current tester for transmission line
03/16/2011CN101582683B Method and device for outputting signal and measuring dutyfactor
03/16/2011CN101458282B High-frequency circuit spacing electromagnetic radiation characteristic analyzing and predicting method
03/10/2011WO2011028678A1 Advance manufacturing monitoring and diagnostic tool
03/10/2011WO2011027984A2 Sensor for measuring electrical characteristics
03/10/2011WO2011027581A1 Circuit for detecting static electricity
03/10/2011WO2010132541A3 Electromagnetic detection apparatus and methods
03/10/2011DE112009001121T5 Verfahren zur Messsung einer abgestrahlten Leistung, Koppler zur Messung einer abgestrahlten Leistung, und Vorrichtung zur Messung einer abgestrahlten Leistung A process for Messsung radiated power, coupler for measuring a radiated power, and apparatus for measuring a radiated power
03/09/2011CN201757766U Portable radio monitor
03/09/2011CN101180547B 离子控制传感器 Ion control sensor
03/08/2011US7904266 Method and apparatus for calculating the separation time of arcing contacts of a high-volume switchgear
03/08/2011US7904265 Circuits and methods for calibrating a delay element
03/08/2011US7902835 Transmission line driving circuit
03/08/2011US7902831 Methods of performing electrostatic discharge testing on a payment card
03/03/2011WO2011023933A1 Hybrid reflectometer system (hrs)
03/03/2011US20110050515 Calculating antenna performance
03/03/2011US20110050206 Method for verifying the bandwidth and phase of a digital power control system
03/03/2011DE102010030450A1 Rauscherfassungsverfahren, Rauscherfassungsvorrichtung, Simulationsverfahren, Simulationsvorrichtung und Kommunikationssystem Noise detection method, noise detection device simulation method, simulation apparatus and communication system
03/03/2011CA2771815A1 Hybrid reflectometer system (hrs)
03/02/2011EP2290392A1 Enhanced impulse response measurement of an FM radar transmitter pulse
03/02/2011EP2290382A1 Scalable self-calibrating and configuring radio frequency head for a wireless communication system
03/02/2011CN201754167U Handheld nuclear phase instrument for digital transformer substation
03/02/2011CN101982786A Simulation device of leaking coaxial cable and simulation method thereof
03/01/2011US7899638 Estimating bit error rate performance of signals
02/2011
02/24/2011WO2011022197A1 Method and apparatus for detecting and locating leakage of digital signals
02/24/2011WO2011020272A1 Method and system of total radiated sensitivity testing for multi-antenna system
02/24/2011US20110043418 Radiated power measurement method, radiated power measurement coupler and radiated power measurement apparatus
02/24/2011US20110043221 Method and Device for Dynamic Adjustment of Network Operating Voltage
02/24/2011US20110043220 Method and apparatus for power sequence timing to mitigate supply resonance in power distribution network
02/23/2011EP2286255A1 Test configuration for the impulse voltage test of electric high-voltage components
02/23/2011EP2286252A2 Sensor cable for electromagnetic surveying
02/23/2011EP1756598B1 Electric potential measuring instrument and image forming apparatus
02/22/2011US7895006 System and method for determining signal-to-noise ratio (SNR), signal-to-noise and distortion ratio (SINAD) and total harmonic distortion (THD)
02/22/2011US7893682 For testability technique for phase detectors used in digital feedback delay locked loops
02/22/2011US7893404 Electromagnetic wave sensor, imaging element and imaging device
02/22/2011CA2271445C Measurement procedure for aurally correct quality assessment of audio signals
02/17/2011WO2011018206A1 Antenna characterisation in a waveguide
02/17/2011US20110040507 Method of, apparatus for, and program for inspecting stack body
02/17/2011US20110037667 Antenna Arrangement and Test Method
02/17/2011US20110037666 Device and method for detecting defects within the insulation of an insulated conductor
02/17/2011DE202010006708U1 Gerät für die Drehfeldrichtungsanzeige eines elektrischen Drehspannungssystems Device for phase sequence indicator of an electric three-phase system
02/17/2011DE102009039198B3 Terahertz radiation receiver for measuring radiation efficiency of terahertz radiations, has end element arranged such that partial radiations fall at end element and partially reflect back at terahertz detector
02/17/2011CA2769881A1 Antenna characterisation in a waveguide
02/16/2011CN101978278A Device and method for determining at least one value associated with the electromagnetic radiation of an object being tested
02/16/2011CN101976994A Conversion circuit, method and system for detecting phase sequence of three-phase power supply, and motor
02/16/2011CN101975894A 4D (Four Dimensional) thunder collecting method of sensor network
02/16/2011CN101082639B Standard pulse generator capable of simulating pulse measurement meter used by user
02/10/2011US20110035190 Method and system for real-time signal classification
02/10/2011US20110035169 Jitter calculating device, jitter calculating method and jitter calculating program
02/10/2011US20110032162 Antenna testing device and antenna testing method using the same
02/09/2011EP1709453B1 Method to forecast the electrical conductivity of anodes for aluminum production before baking
02/09/2011CN201740824U Device for calibrating phase sequence of bus bar in central high-voltage switchgear
02/09/2011CN201740823U Phase failure alarm annunciator
02/09/2011CN201740822U Phase-loss display
02/09/2011CN201740821U Mobile phone terminal radiation measurement device
02/09/2011CN201740820U Displacement device for electromagnetic wave interference test
02/09/2011CN101968517A Mutual inductor measuring system and method for realizing uniform mutual inductance quantity vertical gradient
02/09/2011CN101968516A Electromagnetic radiation detection device
02/09/2011CN101968515A Fast detection device of transformer core loss and turns of coils and detection method thereof
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