Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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10/12/2004 | US6803772 Inductance measuring method |
10/07/2004 | WO2004038429A3 Frequency domain reflectometry system for baselining and mapping of wires and cables |
10/07/2004 | US20040199350 System and method for determining measurement errors of a testing device |
10/07/2004 | US20040196121 Band switchable filter |
10/07/2004 | DE202004012075U1 Test device for checking earth connections in aircraft power units uses a voltage drop measured by voltage test equipment via an earth connection through which a current flows |
10/06/2004 | EP1465286A1 Method and apparatus for measuring complex dielectric constant of dielectric |
10/06/2004 | EP1464967A2 Potential fixing device and potential fixing method |
10/06/2004 | EP1464114A1 Method and apparatus for determining system response characteristics |
10/06/2004 | CN1534303A Method and apparatus for measuring complex dielectric constant of dielectric |
10/05/2004 | US6801044 Universal electromagnetic resonance system for detecting and measuring local non-uniformities in metal and non-metal objects |
10/05/2004 | US6801043 Time domain reflectometry based transmitter equalization |
09/30/2004 | WO2004083875A1 Wave detection device, method, program, and recording medium |
09/30/2004 | WO2004083874A1 Power detectors for measuring power coupling |
09/30/2004 | WO2004083813A2 Method and apparatus for measuring concentration of a chemical component in a gas mixture |
09/30/2004 | WO2004083812A2 Method and apparatus for detection of contaminants in a fluid |
09/30/2004 | WO2004075247A3 Electronic components comprising adjustable-capacitance micro-electro-mechanical capacitors |
09/30/2004 | WO2004059292A3 Probes for measurements of complex dielectric permittivity of porous and other materials and methods of use thereof |
09/30/2004 | US20040193382 Method and apparatus for calibrating a multiport test system for measurement of a DUT |
09/30/2004 | US20040189330 Circuit and method for detecting insulation faults |
09/30/2004 | US20040189328 Hybrid gap measurement circuit |
09/30/2004 | US20040189326 Vector-detecting apparatus and impedance measuring apparatus |
09/30/2004 | US20040189323 Disconnection detecting circuit for sensor apparatus |
09/30/2004 | DE19852775B4 Verfahren zur Sortierprüfung von Varistoren A method for screening inspection of varistors |
09/29/2004 | EP1461625A2 Resistance circuit stabilization and pulse duration control systems for electroporation instruments |
09/29/2004 | CN2645188Y High-current low-resistance box |
09/29/2004 | CN1168998C Method and apparatus for determing the resistivity of a formation through which a cased well passes |
09/29/2004 | CN1168994C Microwave automatic measuring device |
09/29/2004 | CN1168989C Check terminal for testing electronic chip element, checking method and verifying attachment thereof |
09/28/2004 | US6799133 Test mode control circuit for reconfiguring a device pin of an integrated circuit chip |
09/28/2004 | US6798222 Migration measuring method and measuring apparatus |
09/28/2004 | US6798221 Method, apparatus and article to test fuel cells |
09/28/2004 | US6798218 Circuit for measuring absolute spread in capacitors implemented in planary technology |
09/28/2004 | US6798215 System and method for measuring moisture content in a conductive environment |
09/28/2004 | US6798194 Method for measuring a gap between a proximity probe and a conductive target material |
09/28/2004 | CA2134165C Compact and portable device for measuring the reflection factor of a structure exposed to a microwave emission |
09/23/2004 | WO2004081590A1 Micropower apparatus for low impedance measurements |
09/23/2004 | US20040183560 Method and integrated circuit for capacitor measurement with digital readout |
09/23/2004 | US20040183554 Reduction of positional errors in a four point probe resistance measurement |
09/23/2004 | US20040183553 Three-dimensional characterization using a one-dimensional electrode array |
09/23/2004 | US20040183550 System for manufacturing a modularly structured apparatus for determining a physical process quantity, and standardized components |
09/23/2004 | US20040183542 Method for correcting measurement error and electronic component characteristic measurement apparatus |
09/23/2004 | US20040183521 Power detectors for measuring power coupling |
09/22/2004 | CN1167955C AC method for measuring insulation resistance |
09/21/2004 | US6795783 Method of and apparatus for accurate resistance measurement with a programmable current source |
09/21/2004 | US6794857 Apparatus and method for measuring a phase delay characteristic |
09/16/2004 | US20040178810 Sensor apparatus |
09/16/2004 | US20040178806 Micropower apparatus for low impedance measurements |
09/16/2004 | US20040178804 Method and apparatus for detection of contaminants in a fluid |
09/16/2004 | US20040178803 Method and apparatus for measuring concentration of a chemical component in a gas mixture |
09/16/2004 | US20040178427 A-C:H ISFET device, manufacturing method, and testing methods and apparatus thereof |
09/15/2004 | CN1529175A Method for measuring contact impedance between plane display and crystal sheet and its structure thereof |
09/15/2004 | CN1528629A Track circuit primary parameter high-precision rapid ground measuring method and measuring apparatus thereof |
09/14/2004 | US6792379 Data-based control of integrated circuits |
09/14/2004 | US6791343 Modeling miller effect in static timing analysis |
09/14/2004 | US6791340 Device for the comparison of two resistors, and integrated resistor compensation system incorporating this device |
09/14/2004 | US6791338 Gated nanoscale switch having channel of molecular wires |
09/14/2004 | US6791335 Sample assembly for thermoelectric analyzer |
09/09/2004 | US20040176923 Testing of a frequency converter device |
09/09/2004 | US20040176918 Method for digitally measuring electrical impedance |
09/09/2004 | US20040174220 Tunable power amplifier matching circuit |
09/09/2004 | US20040174172 Method of correcting measurement error and electronic component characteristic measurement apparatus |
09/09/2004 | DE10307972A1 Earth connection method for recognizing and locating earth connections with low and high impedance measures frequencies different from a mains frequency |
09/09/2004 | DE10303409A1 Verfahren und Schaltungsanordnung zur Bestimmung eines elektrischen Messwerts für ein Widerstandselement, vorzugsweise zur Bestimmung eines elektrischen Stroms durch das Widerstandselement Method and circuit arrangement for determining an electrical measurement value of a resistance element, preferably for the determination of an electric current through the resistive element |
09/08/2004 | EP1455197A2 Calibration method and apparatus |
09/08/2004 | EP1455181A1 Non-destructive testing of composite conductor rails |
09/08/2004 | EP1131641B1 Charge transfer capacitance measurement circuit |
09/08/2004 | CN2639897Y Digital D.C. bridge |
09/08/2004 | CN1165773C Impedance detection apparatus and method |
09/07/2004 | US6789236 Integrated circuit device characterization |
09/07/2004 | US6788076 Apparatus for determining doping concentration of a semiconductor wafer |
09/07/2004 | US6788044 Frequency change measuring device |
09/02/2004 | WO2004075247A2 Electronic components comprising adjustable-capacitance micro-electro-mechanical capacitors |
09/02/2004 | WO2004074781A2 Method and apparatus for measuring dry density and water content of soil |
09/02/2004 | DE10225058B4 Verfahren zur selektiven Erfassung von Erdschlusswischern in Drehstromnetzen Process for the selective detection of Erdschlusswischern in three-phase systems |
09/01/2004 | EP1452867A1 DNA specific capacity affinity sensor |
09/01/2004 | EP1451596A1 Method for detecting the operability of a number of identical zener diodes that are connected in parallel to one another and to a solenoid |
09/01/2004 | EP1451566A2 Particle impedance sensor |
08/31/2004 | US6785625 Characterizing multi-port cascaded networks |
08/31/2004 | US6784854 Dielectric detection through conductive metal |
08/31/2004 | US6784685 Testing vias and contacts in an integrated circuit |
08/26/2004 | WO2004072665A1 Circuit check device, circuit check method, resistance measurement device, and resistance measurement method |
08/26/2004 | WO2004072618A2 Improved microwave spectrometer |
08/26/2004 | US20040167730 Method of calculating effective power relating to capacitor, method of measuring effective power consumed by capacitor, capacitor selection method, calculation apparatus for calculating effective power relating to capacitor, and recording medium storing the calculation program therefor |
08/26/2004 | US20040164771 Differential capacitance sense amplifier |
08/26/2004 | US20040164751 Digital potentiometer device |
08/26/2004 | US20040164750 Digital time domain reflectometry moisture sensor |
08/26/2004 | US20040164749 Systems and methods for classifying vehicles |
08/26/2004 | US20040164748 Variable impedance test probe |
08/26/2004 | CA2515810A1 Improved microwave spectrometer |
08/25/2004 | CN1524276A Tunable ferro-electric filter |
08/25/2004 | CN1523363A Method of testing transmission line characteristic impedance |
08/25/2004 | CN1163758C Method for testing earthing resistance |
08/24/2004 | US6781388 Liquid property sensor |
08/24/2004 | US6781386 Method and device for measuring a line attenuation |
08/19/2004 | WO2004070401A1 Method and circuit arrangement for determining an electric measurement value for a resistance element, preferably for determining an electric current that flows through said resistance element |
08/19/2004 | WO2004070374A1 Apparatus and method for measuring an oxygen concentration of a gas |
08/19/2004 | US20040162691 Digital group delay compensator |
08/19/2004 | US20040162689 Multiport network analyzer calibration employing reciprocity of a device |
08/19/2004 | US20040160231 Capacitance measurement system |
08/19/2004 | US20040160230 Method, apparatus, and article of manufacture for characterizing a device and predicting electrical behavior of the device in a circuit |