G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom

Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
12/2002
12/04/2002	CN2524371Y Detector for chip tester
12/04/2002	CN2524370Y Detector for chip tester
11/2002
11/28/2002	WO2002094090A2 Transformer-isolated alternating current power supply
11/28/2002	US20020177962 Apparatus for automatically measuring the resistivity of semiconductor boules by using the method of four probes
11/28/2002	US20020175878 Tunable matching circuit
11/28/2002	US20020175863 Ferroelectric antenna and method for tuning same
11/28/2002	US20020175693 Material property detection system and method
11/28/2002	US20020175692 Method and circuit for detecting movements through micro-electric-mechanical sensors, compensating parasitic capacitances and spurious movements
11/28/2002	US20020175688 Method and an apparatus for measuring the ratio of the amplification factor of a signal level normalizer
11/27/2002	EP1259831A1 Control system simulation, testing, and operator training
11/26/2002	US6486685 Remote resistivity measurement
11/21/2002	WO2001027605A9 Highly time resolved impedance spectroscopy
11/21/2002	US20020171454 Impedance detection circuit, impedance detector and method of impedance detection
11/21/2002	US20020171440 Method of regulating resistance value in sensor circuit
11/21/2002	DE10119697A1 Electrical measurement and testing device for three phase electrical equipment, especially for measuring earth conductor and insulation resistance and earth current under operating conditions using the differential current method
11/20/2002	EP1257811A2 Method for isolating a proportion of a fluid mixture
11/20/2002	CN2521623Y Multifunctional electrostatic conduction earthing resistance detecting instrument
11/20/2002	CN1094596C Palm-top digital capacitance/dielectric loss, inductance/quality factor parameter measurer
11/19/2002	US6483318 Electric circuit providing selectable short circuit for instrumentation applications
11/19/2002	CA2215164C In-situ oil analyzer and methods using same, particularly for continuous on-board analysis of diesel engine lubrication systems
11/14/2002	WO2002091006A1 Method for measuring fuse resistance in a fuse array
11/14/2002	WO2002091003A1 Contact control
11/14/2002	WO2002090962A1 Integrated thin film liquid conductivity sensor
11/14/2002	WO2002090928A2 Apparatus for automatically measuring the resistivity of semiconductor boules using the method of four probes
11/14/2002	US20020167454 Tunable dipole antenna
11/14/2002	US20020167451 Tunable waveguide antenna
11/14/2002	US20020167447 Tunable monopole antenna
11/14/2002	US20020167323 Method for measuring fuse resistance in a fuse array
11/14/2002	US20020167322 Integrated thin film liquid conductivity sensor
11/14/2002	US20020167304 Test board de-embedding method to improve RF measurements accuracy on an automatic testing equipment for IC wafers
11/14/2002	US20020167303 Non-contact voltage measurement method and device, and detection probe
11/14/2002	US20020166388 Method and apparatus for pressure sensing
11/14/2002	DE10119080A1 Widerstandsmessung Resistance measurement
11/12/2002	US6480010 Method of inspecting piezoelectric ceramic device
11/12/2002	CA2255321C Method and device for discrete-time reactance measurement
11/12/2002	CA2145274C Circuit for meausuring source resistance of a sensor
11/07/2002	WO2002088627A1 Measurements of coating on metal
11/07/2002	US20020164511 Cooling device for fuel cell system and control method thereof
11/07/2002	US20020163475 Tunable slot antenna
11/07/2002	US20020163400 Tunable ferro-electric multiplexer
11/07/2002	DE10118299A1 Operational testing of capacitors, such as those used to supply power for a limited time when power is cut, by measuring current and voltage across the capacitor during a charging phase and comparison with theoretical values
11/06/2002	CN1378080A Capacitive chromatographic imaging capacitance measuring system
11/05/2002	US6476630 Method for testing signal paths between an integrated circuit wafer and a wafer tester
10/2002
10/31/2002	WO2002087082A1 Tunable matching circuit
10/31/2002	WO2002087016A1 Ferroelectric antenna and method for tuning same
10/31/2002	US20020158717 Tunable ferro-electric filter
10/31/2002	US20020158658 Method for automated measurement of the ohmic rotor resistance of an asynchronous mechine
10/31/2002	US20020158639 Laminate with an inside layer circuit used for multilayer printed circuit board for a high frequency circuit ,and method and device for measuring circuit impedance of the laminate with inside layer circuit
10/30/2002	EP1252528A1 Capacitance monitoring systems
10/30/2002	CN2519286Y Device for on line measuring distribution net zero sequence capacity valve
10/30/2002	CN1377305A Four electrical contact testing machine for miniature inductors and process of using
10/29/2002	US6472886 Method of calculating parasitic capacitance between electrodes of integrated circuits
10/29/2002	US6472885 Method and apparatus for measuring and characterizing the frequency dependent electrical properties of dielectric materials
10/29/2002	US6472881 Liquid metal ion source and method for measuring flow impedance of liquid metal ion source
10/24/2002	WO2002084858A1 Tunable voltage-controlled temperature-compensated crystal oscillator
10/24/2002	WO2002084857A1 Tunable voltage controlled oscillator
10/24/2002	WO2002084798A1 Inverted-f ferroelectric antenna
10/24/2002	WO2002084781A1 Tunable multiplexer
10/24/2002	WO2002084778A2 Tunable phase shifter and applications for same
10/24/2002	WO2002084686A1 Band switchable filter
10/24/2002	WO2002084685A1 Tunable ferro-electric filter
10/24/2002	WO2002084684A2 Tunable planar capacitor
10/24/2002	WO2002084310A1 Low-loss tunable ferro-electric device and method of characterization
10/24/2002	WO2002006842A3 Circuit for determining the internal resistance of a linear lambda probe
10/24/2002	US20020153909 Nano-drive for high resolution positioning and for positioning of a multi-point probe
10/24/2002	US20020153901 Method and apparatus for in-circuit impedance measurement
10/24/2002	US20020153880 Digital eddy current proximity system: apparatus and method
10/23/2002	EP1251357A1 Resistance measurement
10/23/2002	EP0776479B1 System for monitoring an ungrounded power distribution system
10/22/2002	US6469513 Automated stationary/portable test system for applying a current signal to a dielectric material being tested
10/17/2002	US20020151291 Antenna interface unit
10/17/2002	US20020151279 Tunable low noise amplifier
10/17/2002	US20020149893 Protection relay
10/17/2002	US20020149535 Tunable antenna matching circuit
10/17/2002	US20020149533 Tunable horn antenna
10/17/2002	US20020149526 Inverted-F ferroelectric antenna
10/17/2002	US20020149448 Low-loss tunable ferro-electric device and method of characterization
10/17/2002	US20020149444 Tunable planar capacitor
10/17/2002	US20020149443 Tunable voltage controlled oscillator
10/17/2002	US20020149439 Tunable isolator
10/17/2002	US20020149434 Tunable voltage-controlled temperature-compensated crystal oscillator
10/17/2002	US20020149428 Tunable power amplifier matching circuit
10/17/2002	US20020148624 Device for assisting in the measurement of the earth resistance
10/16/2002	EP1249706A2 Non-contact voltage measurement method and device, and related detection probe
10/16/2002	CN1374727A 保护继电装置 Protective relay devices
10/15/2002	US6466839 Fast CD and MD control in a sheetmaking machine
10/15/2002	US6466520 Built-in AC self test using pulse generators
10/10/2002	DE10116388A1 Calibration method for vectorial network analyzer uses calibration circuits each provided by line element and symmetrical reciprocal obstacle network
10/09/2002	EP1247269A1 Method and apparatus for active isolation in inductive loop detectors
10/09/2002	EP1247111A2 A digital eddy current proximity system: apparatus and method
10/09/2002	EP1247110A1 Single ended measurement method and system for determining subscriber loop make up
10/09/2002	CN1373889A Ratio method for measurement of MR read head resistance
10/09/2002	CN1092415C Diagnostic circuit for testing capacity of electric capacitor
10/08/2002	US6462538 Eddy current detection type thin film electrical resistance meter
10/03/2002	WO1999005533A3 System for measuring the alternating current equivalent series resistance of a conductor
10/03/2002	US20020140440 Digital measurement circuit and system using a grounded capacitive sensor
10/03/2002	US20020140438 Capacitance measurement
10/03/2002	US20020140432 Capacitance rejecting ground fault protecting apparatus and method
10/02/2002	EP1244921A1 Time domain reflectometer display method
10/02/2002	CN2514353Y Measurer for grounding resistance of grounded counterpoise

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