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