Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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03/19/2002 | US6359449 Single coil conductance measuring apparatus |
03/14/2002 | US20020030550 Tuning method for filters having multiple coupled resonators |
03/14/2002 | US20020030504 Method for measuring surface leakage current of sample |
03/12/2002 | US6356852 Multi-port programmable tester |
03/12/2002 | US6356514 Built-in self test method for measuring clock to out delays |
03/12/2002 | US6356163 Tuning method for filters having multiple coupled resonators |
03/12/2002 | US6356085 Method and apparatus for converting capacitance to voltage |
03/07/2002 | WO2002018957A2 A device to audibly express impedance differences |
03/07/2002 | US20020027191 Apparatus for sensing position of electrostatic XY-stage through time-division multiplexing |
03/07/2002 | DE10115732A1 Determination of network transmission and reflection characteristics or scatter coefficients using a vector network analyzer in which reciprocal values for a multi-gate network are inferred rather than measured directly |
03/07/2002 | CA2420628A1 A device to audibly express impedance measurement |
03/06/2002 | EP1184671A1 Power detector using FET transistor |
03/06/2002 | EP1183530A2 An automated stationary/portable test system for dielectrics |
03/06/2002 | EP1101122B1 Quasi-hemispherical fabry-perot resonator and method for operating the same |
03/06/2002 | EP0990164B1 Method and device for monitoring a cable |
03/06/2002 | CN1339114A Multi-port device analysis apparatus and method and calibration method thereof |
03/05/2002 | US6353337 Load capacitance measuring circuit and output buffer adaptive to wide range of load capacitance |
03/05/2002 | US6353327 Circuit board misalignment detection apparatus and method |
03/05/2002 | US6351884 Process for manufacturing printed circuit boards and process for connecting wires thereto |
02/28/2002 | WO2001079868A3 System for measuring signal path resistance for an integrated circuit tester interconnect structure |
02/28/2002 | US20020024357 Power detector using FET transistor |
02/28/2002 | US20020024349 Sample assembly for thermoelectric analyzer |
02/28/2002 | US20020024346 Method of inspecting piezoelectric ceramic device |
02/28/2002 | US20020024345 Sensor for the capacitive measurement of film with thickness |
02/28/2002 | DE10034060A1 Internal resistance measurement circuit for linear lambda sensor, employs principle of synchronous demodulation |
02/27/2002 | EP1182423A1 Sensor for measuring capacitively the tickness of sheets |
02/27/2002 | EP1181562A2 Scattering parameter calibration system and method |
02/26/2002 | US6349670 Plasma treatment equipment |
02/24/2002 | CA2355459A1 Sensor for the capacitive measurement of film with thicknesses |
02/24/2002 | CA2353429A1 Power detector using fet transistor |
02/21/2002 | WO2002014882A1 Method and device for measuring a line attenuation |
02/21/2002 | WO2001081937A3 Electronic circuit device with a short circuit switch and method of testing such a device |
02/21/2002 | CA2419079A1 Method and device for measuring a line attenuation |
02/20/2002 | EP0995083B1 Capacitative level detector with optimized electrode geometry |
02/20/2002 | EP0944817B1 Method and apparatus for electronic compensation of erroneous readings caused by resonance in a capacitive pressure transducer |
02/19/2002 | US6348809 Microscopic capacitance measurement system and probing system |
02/19/2002 | US6348804 Vector network analyzer |
02/14/2002 | DE10037432A1 Monitoring of a capacitor bushing to detect faults, by comparison of the quotient of electrical measurements with a characterizing value, with any deviation indicating a fault, the invention being independent of operating voltage |
02/12/2002 | US6347382 Multi-port device analysis apparatus and method |
02/12/2002 | US6346807 Digital eddy current proximity system: apparatus and method |
02/07/2002 | WO2002010781A1 Electrical resistance monitoring device |
02/06/2002 | EP1178302A2 Capacitance type moisture sensor and method of producing the same |
02/05/2002 | CA2102513C Method and apparatus for transmitting electromagnetic signals into the earth from a capacitor |
01/31/2002 | US20020012213 Digital distance relay |
01/31/2002 | US20020011861 Circuit board misalignment detection apparatus and method |
01/31/2002 | US20020011857 Test coupon in printed wiring board |
01/30/2002 | EP1175629A1 A method and apparatus for determining the resistivity of a formation through which a cased well passes |
01/30/2002 | EP0998677B1 System for measuring the alternating current |
01/30/2002 | CN1078710C Process for producing signals identifying faulty loops in polyphase electrical power supply |
01/29/2002 | US6343140 Method and apparatus for shooting using biometric recognition |
01/24/2002 | WO2002007419A2 Tdr lan cables attenuation measurement |
01/24/2002 | WO2002006842A2 Circuit for determining the internal resistance of a linear lambda probe |
01/24/2002 | US20020008543 Load capacitance measuring circuit and output buffer adaptive to wide range of load capacitance |
01/23/2002 | EP1174871A1 Apparatus for electrostatically sensing the position of an xy-stage through time-division multiplexing |
01/16/2002 | EP1172647A1 Apparatus for measuring conductivity |
01/16/2002 | EP1171247A1 Four electrical contact testing machine for miniature inductors and process of using |
01/10/2002 | DE10030602A1 Verfahren und Vorrichtung zur Bestimmung des Feuchtegehalts in Mehrkomponentengemischen Method and apparatus for determining the moisture content in multicomponent mixtures |
01/10/2002 | DE10030389A1 Circuit arrangement for constant monitoring of the capacitance of a vehicle airbag ignition capacitor to ensure that it remains above a threshold capacitance required to trigger the airbag primer fuse |
01/09/2002 | EP1169651A1 Method for determining the permeability of a magnetic material by coaxial line perturbation |
01/09/2002 | CN2470835Y Capacitor and impedance apparatus relevant to decimal value and multiple values |
01/09/2002 | CN1330439A Digital Distance relay |
01/09/2002 | CN1330268A Capacity type humidity sensor and producing method thereof |
01/08/2002 | US6337602 Method and apparatus for active isolation in inductive loop detectors |
01/03/2002 | US20020000825 Method for screening multi-layer ceramic electronic component |
01/03/2002 | US20020000813 Capacitance type moisture sensor and method of producing the same |
01/03/2002 | DE10027507C1 Schaltungsanordnung zur Erfassung von Kapazitätsänderungen Circuit arrangement for detecting changes in capacitance |
01/02/2002 | EP1168558A2 Digital distance relay |
01/02/2002 | EP1166275A1 Device for weighting the cell resistances in a magnetoresistive memory |
01/02/2002 | EP1166135A1 Circuit arrangement for measuring the resistances of a pressure-sensitive resistance mat |
01/02/2002 | CN1329255A Chargeable cell test loop contact resistance monitoring method |
01/01/2002 | US6335642 Impedance-to-voltage converter |
12/27/2001 | WO2001069272A3 Device and method for monitoring a capacitor bushing |
12/27/2001 | US20010054904 Monitoring resistor element and measuring method of relative preciseness of resistor elements |
12/27/2001 | US20010054894 Apparatus and method for obtaining increased sensitivity, selectivity and dynamic range in property measurement using magnetometers |
12/25/2001 | US6333680 Method and system for characterizing coupling capacitance between integrated circuit interconnects |
12/20/2001 | WO2001096886A1 Method and device for inspecting the mechanical fastening of a component to a base body |
12/20/2001 | US20010052777 Diagnostic circuit for measuring the resistance and the leakage current of at least one firing cap of a motor vehicle occupant protection system, and a motor vehicle occupant protection system including the diagnostic circuit |
12/20/2001 | DE10107441A1 Determining characteristics of frequency translation devices by extracting expressions from reflection responses including variations in sum and difference signal components |
12/19/2001 | EP1164380A2 Circuit for detecting changes in capacitance |
12/19/2001 | EP0963250B1 Improvements in thermal cycler for pcr |
12/18/2001 | US6331780 Static capacitance-to-voltage converter and converting method |
12/13/2001 | US20010050648 Apparatus and method for determining return loss of an electrical device |
12/13/2001 | US20010050565 Multi-point probe |
12/13/2001 | US20010050563 Structure of a memory cell |
12/12/2001 | EP1162470A1 Insulation controller testing apparater for electrical networks |
12/12/2001 | CN1326544A Capacitive measuring device |
12/11/2001 | US6329824 Method of measuring resonant frequency of a resonator and coupling degree of two resonators |
12/11/2001 | US6329805 Method for network analyzation and apparatus |
12/05/2001 | EP1159715A2 Proximity sensor |
12/05/2001 | EP0792113B1 Hair-care appliance with hair-moistness measurement by measuring the resistance of the hair |
12/05/2001 | CN2463839Y Charged intelligent detector for high tension transmission line insulator |
12/05/2001 | CN1325551A Method and apparatus for measuring complex impedance of cells and batteries |
12/04/2001 | US6327545 Method and apparatus for board model correction |
12/04/2001 | US6326929 Method and device for the measurement of antenna impedance |
12/04/2001 | US6326795 Capacitance detection system and method |
11/29/2001 | WO2001090765A1 A circuit for measuring absolute spread in capacitors implemented in planary technology |
11/29/2001 | WO2001090764A1 Method and apparatus for in-circuit impedance measurement |
11/29/2001 | WO2000068758A3 An automated stationary/portable test system for dielectrics |
11/29/2001 | WO2000046605A3 Scattering parameter calibration system and method |
11/29/2001 | US20010045840 Electronic circuit device with a short circuit switch and method of testing such a device |