Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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04/17/2013 | CN202886478U Large-current and direct-current resistor tester |
04/17/2013 | CN202886477U Conductivity monitoring wireless conveyer |
04/17/2013 | CN202886476U Apparatus for testing the single-phase short-circuit impedance of transformer |
04/17/2013 | CN202886475U Direct current resistance measuring meter of three-phase inductive coil |
04/17/2013 | CN202886474U Insulated resistance tester |
04/17/2013 | CN202886473U 750-kV insulator detector for line hot-line work |
04/17/2013 | CN202879643U Walking device of electrical insulator detector for hot-line work of 750 kV circuit |
04/17/2013 | CN103051326A Interface circuit of micro electro mechanical system conductivity sensor |
04/17/2013 | CN103048613A Systems and methods for monitoring electrical contacts |
04/17/2013 | CN103048579A Monitoring device for insulation between direct-current buses and between buses and ground |
04/17/2013 | CN103048550A Test system and test data calibration method of S-parameter of surface mount microwave device |
04/17/2013 | CN103048549A Dielectric loss testing method and device of 500kV current transformer |
04/17/2013 | CN103048548A Corona loss testing system and method of molded wire |
04/17/2013 | CN103048547A Parameter designing method for smoothing reactor used for flexible direct-current power transmission |
04/17/2013 | CN103048546A Input circuit for measuring liquid electricity conductivity |
04/17/2013 | CN103048545A Device for determining the insulation resistance of a high-voltage battery system |
04/17/2013 | CN103048544A Insulation resistance monitoring method of photovoltaic power generation system |
04/17/2013 | CN103048543A Method and system for use with a vehicle battery |
04/17/2013 | CN103048542A Device and system for measuring current calibration resistor |
04/17/2013 | CN103048541A Testing method for conductivity change in service process of grounding material |
04/17/2013 | CN103048538A Method for testing collective frequency of radio frequency card and tester for realizing method |
04/17/2013 | CN103048515A Voltage tester having alternatively attachable or separable probes |
04/17/2013 | CN103048514A Voltage tester having alternatively attachable or separable probes |
04/17/2013 | CN102324808B Hollow cup motor commutator polishing and coil resistance measurement all-in-one machine |
04/17/2013 | CN102279318B Online detection system of insulating resistance to ground of photovoltaic grid-connected inverter |
04/17/2013 | CN102279317B Online detection method of insulating resistance to ground of photovoltaic grid-connected inverter |
04/17/2013 | CN102262185B Test circuit for water resistance of instant heating-type electric water heater |
04/17/2013 | CN102135571B Anti-interference measurement method for zero sequence impedance of super-high-voltage/ultrahigh-voltage multi-loop power transmission line |
04/17/2013 | CN101995197B Interlocked digital display remote control exploder |
04/17/2013 | CN101923114B Resistance phasing method for medium-voltage distribution line looped network |
04/17/2013 | CN101806865B Detection device of internal resistance of cell |
04/17/2013 | CN101680922B Impedance measurement of a power line |
04/16/2013 | US8423851 Measured device and test system utilizing the same |
04/16/2013 | US8421487 Method for extending the diagnostic capability of current regulators |
04/16/2013 | US8421486 Oil-degradation detecting apparatus |
04/16/2013 | US8421485 Detection device and detection system using the same |
04/16/2013 | US8421484 Dielectric spectroscopy assays for screening of ion channel ligands |
04/16/2013 | US8421483 Touch and force sensing for input devices |
04/16/2013 | US8421482 Anti-pinching device |
04/16/2013 | US8421481 Detection and mitigation of particle contaminants in MEMS devices |
04/16/2013 | US8421480 Multidirectional switch member and electronic device having same |
04/16/2013 | US8421479 Pulsed echo propagation device and method for measuring a parameter |
04/16/2013 | US8421477 Resistance variation detection circuit, semiconductor device and resistance variation detection method |
04/16/2013 | US8421438 Apparatus and method for diffusion sensing |
04/16/2013 | US8421437 Array column integrator |
04/11/2013 | WO2013052657A1 Conductivity measurement of fluids |
04/11/2013 | WO2013050572A1 Resistivity meter capable of evaluating the resistivity of a floor using galvanic and electrostatic electric measurement methods |
04/11/2013 | US20130089463 Turbine blade erosion sensor |
04/11/2013 | US20130088248 Determination of series resistance of an array of capacitive elements |
04/11/2013 | US20130088247 Readout apparatus and readout method for sensor array |
04/11/2013 | US20130088246 Microcontroller with Optimized ADC Controller |
04/11/2013 | US20130088245 Capacitive Inspection Of EUV Photomasks |
04/11/2013 | US20130088244 Variable capacitance sensors and methods of making the same |
04/11/2013 | US20130088243 Position sensing head with redundancy |
04/11/2013 | US20130088242 Microcontroller with Sequencer Driven Analog-to-Digital Converter |
04/11/2013 | DE102011115124A1 Measuring device for testing operation of Quartz crystal oscillator used in computer system, compares characteristic size of quartz crystal oscillator with previously measured reference value of reference crystal oscillator |
04/11/2013 | DE102011084219A1 Verfahren und Vorrichtung zur Ermittlung eines Isolationswiderstands in geerdeten IT-Systemen A method and apparatus for determining an insulation resistance in grounded IT systems |
04/11/2013 | DE102011054319A1 Vorrichtung zur Messung einer Normalkraft An apparatus for measuring a normal force |
04/11/2013 | CA2851273A1 Conductivity measurement of fluids |
04/10/2013 | EP2579052A1 Method for measuring resistance value of conversion resistance of current mode analog /digital converter |
04/10/2013 | CN202870255U Molded case circuit breaker mechanical life and loop resistance detection device |
04/10/2013 | CN202870254U Test device specially used for module type circuit breaker |
04/10/2013 | CN202870185U PTC thermistor comprehensive parameter testing device |
04/10/2013 | CN202870179U LCR measuring instrument |
04/10/2013 | CN202870178U Contactless conductivity detector |
04/10/2013 | CN202870177U Detection device |
04/10/2013 | CN202870176U Direct-current grounding resistor detection device |
04/10/2013 | CN202870175U Novel grounding resistance tester |
04/10/2013 | CN202870174U Low energy consumption circuit for detecting insulating resistance of DC bus |
04/10/2013 | CN202870173U High-frequency impedance tester |
04/10/2013 | CN202870172U Control switch contact resistance detector |
04/10/2013 | CN202870171U Measuring device of brush resistivity |
04/10/2013 | CN202870170U Open type Kelvin bridge experimental instrument |
04/10/2013 | CN202870169U Anti-high induced voltage interference actual measurement device for power frequency parameters of high voltage transmission line |
04/10/2013 | CN103038962A Wire stripper |
04/10/2013 | CN103033764A Adjustable integrated device for battery code scanning and testing |
04/10/2013 | CN103033729A Insulation detection circuit and detection method used for battery box |
04/10/2013 | CN103033706A Method utilizing isothermy relaxation current method for evaluating insulated overhead conductor |
04/10/2013 | CN103033689A Direct current insulation monitoring device and method capable of compensating deviation of voltage to earth of positive pole and negative pole |
04/10/2013 | CN103033688A Oven-controlled crystal oscillator inflection point resistance testing system |
04/10/2013 | CN103033687A Cable connection fastening tester and test method thereof |
04/10/2013 | CN103033686A Method for insulation fault monitoring with dynamic response characteristic |
04/10/2013 | CN103033565A Acoustical emitting and resistivity joint monitoring device and monitoring method of fracture process of rock specimen |
04/10/2013 | CN102163738B Method for automatically detecting voltage and internal resistance of battery and spraying code |
04/10/2013 | CN102116801B Circuit and device for measuring protective conductor |
04/10/2013 | CN102053226B Device and method for testing internal resistance of battery |
04/10/2013 | CN102004930B Micro-capacitance measurement-based radio health monitoring system with shape memory alloy (SMA) composite structure |
04/10/2013 | CN101991415B Electromagnetic sensors for tissue characterization |
04/10/2013 | CN101963641B Conductor bundle detection system |
04/09/2013 | US8415962 Transmission line based electric fence with intrusion location ability |
04/09/2013 | US8415961 Measuring sheet resistance and other properties of a semiconductor |
04/09/2013 | US8415960 Capacitance sensing apparatus |
04/09/2013 | US8415959 Single layer transcapacitive sensing |
04/09/2013 | US8415958 Single layer capacitive image sensing |
04/09/2013 | US8415957 Capacitance measurement circuit and method |
04/09/2013 | CA2433493C Low cost, on-line corrosion monitor and smart corrosion probe |
04/04/2013 | WO2013048939A1 Transmitter monitoring and calibration system |
04/04/2013 | WO2013048545A1 Sensor patterns with reduced noise coupling |
04/04/2013 | WO2013048062A2 Method for removing noise through switching of scanning direction in capacitance type touch panel |
04/04/2013 | WO2013016750A8 Method and device for detecting a deterioration in the state of an insulation in an operating electric machine |