Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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12/16/2008 | US7466145 Voltage measuring apparatus and power measuring apparatus |
12/16/2008 | US7466144 Microwave measurement system for piston displacement |
12/16/2008 | US7466143 Clearance measurement systems and methods of operation |
12/16/2008 | US7466142 Anechoic chamber for direct observation of the electromagnetic behavior of a tool |
12/16/2008 | US7466141 Phase measurement device, method, program, and recording medium |
12/16/2008 | US7466126 Universal sensor probe with adjustable members configured to fit between a plurality of slot openings of varying widths |
12/16/2008 | US7466119 Sensor circuit for detection of an abnormal offset voltage |
12/16/2008 | US7465170 Extended input/output card capacity computer system |
12/11/2008 | WO2008150398A1 Multilayer conductivity sensor4 |
12/11/2008 | US20080303538 Measuring Electrical Impedance at Various Frequencies |
12/11/2008 | US20080303536 Electronic Circuit with Capacitive Switching Ability |
12/11/2008 | US20080303535 Multi-pin cv measurement |
12/11/2008 | US20080303534 Method and Apparatus For Measuring the Water Conductivity and Water Volume Fraction of a Multiphase Mixture Containing Water |
12/11/2008 | US20080303533 Cable testing device and testing method thereof |
12/11/2008 | DE10250523B4 Verfahren zur Erfassung der Kapazität bzw. einer Kapazitätsänderung eines kapazitiven Schaltungs- oder Bauelementes A method for detecting the capacitance or a change in capacitance of a capacitive circuit element or component |
12/11/2008 | DE102007025744A1 Method for analysis, particularly for network analysis of device under test, involves producing reference signal, which possess period with oscillator |
12/11/2008 | DE102007025743A1 Measuring object analysis e.g. network analysis, method for e.g. network analyzer, involves determining wave frequencies of object based on measuring signal, and modulating reference signal with preset temporal phase characteristics |
12/11/2008 | DE102007025578A1 Device under test analyzing i.e. network analyzing, method for measuring wave frequency i.e. S-parameter, involves forming reference signal by repetition of arbitrary time limitation signals e.g. chirp signal, in specified range |
12/10/2008 | EP1999453A2 Metal loss rate sensor and measurement using a mechanical oscillator |
12/10/2008 | EP1782079B1 Calibration standard |
12/10/2008 | EP1247111B1 A digital eddy current proximity system: apparatus and method |
12/10/2008 | CN201163765Y Capacitance induction type touch press key |
12/10/2008 | CN201163764Y Capacitance induction type touch press key based on MCU |
12/10/2008 | CN201163290Y Vehicle electric signal test device |
12/10/2008 | CN101320825A Debugging method of cavity band-pass filter |
12/10/2008 | CN100442061C Method for toolmatching and troubleshooting a plasma processing system |
12/09/2008 | US7463047 Increase productivity at wafer test using probe retest data analysis |
12/09/2008 | US7463040 Multifunctional conducting polymer structures |
12/09/2008 | US7463039 Probe for electrical measurement methods, especially eddy current measurements |
12/04/2008 | WO2008147694A1 Capacitive measurements with fast recovery current return |
12/04/2008 | WO2008147517A1 Device protection using temperature compensation |
12/04/2008 | WO2008145783A1 Capacitance-to-frequency converter circuit for capacitive transducers |
12/04/2008 | WO2007075887A3 Micropower voltage-independent capacitance measuring method and circuit |
12/04/2008 | US20080297179 Multilayer manufacturing for conductivity sensor |
12/04/2008 | US20080297177 Method for servicing an apparatus for capacitive ascertaining and/or monitoring of a process variable |
12/04/2008 | US20080297176 Capacitive Sensor and Method for Manufacturing the Same |
12/04/2008 | US20080297175 Apparatus and method for measuring capacitance to ground of conductor |
12/04/2008 | US20080297174 Capacitive sensing devices |
12/04/2008 | US20080297173 System and method for measuring conductivity of fluid |
12/04/2008 | US20080297171 Transceiver system that estimates a voltage standing wave ratio |
12/04/2008 | US20080297170 Dynamic inductance measurement of electric motor |
12/04/2008 | US20080296208 Reverse Osmosis Filtration Devices with Rfid Tag-Powered Flow and Conductivity Meters |
12/04/2008 | US20080295407 Luggage Compartment Actuation |
12/04/2008 | DE102005029271B4 Verfahren und Einrichtung zur Bestimmung des Leckwiderstands von zumindest einer Ader einer mehrere Adern aufweisenden Teilnehmeranschlussleitung in einem Kommunikationsnetz Method and apparatus for determining the leakage resistance comprising at least one wire of a multiple wires subscriber line in a communications network |
12/03/2008 | EP1756597A4 Device for determining composition of a fluid mixture |
12/03/2008 | CN201159757Y Universal testing device capable of detecting accurate resistor |
12/03/2008 | CN101315404A Automatic test system of electromagnetic interference power filter |
12/03/2008 | CN101315399A Dielectric loss performance monitoring method in drying process course of capacitor type heavy insulation product |
12/03/2008 | CN101315398A Capacitance value measuring apparatus and method |
12/03/2008 | CN101315362A Fabric specific resistance instrument and fabric resistor and fabric specific resistance measurement method |
12/03/2008 | CN100439932C Multifunctional grounded monitoring system |
12/03/2008 | CN100439928C Network analyzer, network analyzing method, program, and recording medium |
12/03/2008 | CN100439927C Indirect measuring method for electric network capacitance current |
12/02/2008 | US7459920 Method of and apparatus for non-destructively measuring moisture content of dried objects |
12/02/2008 | US7459919 Device for checking light-metal parts |
12/02/2008 | US7459918 Impedance measurement system with incorporated internal measurement drift compensation networks |
12/02/2008 | US7459917 Measuring method for electromagnetic field intensity and apparatus therefor, measuring method for electromagnetic field intensity distribution and apparatus therefor, measuring method for current and voltage distributions and apparatus therefor |
12/02/2008 | US7459916 Electromagnetic shielding defect monitoring system and method for using the same |
12/02/2008 | US7459915 Electric circuit and test apparatus for outputting a recovered clock input signal |
12/02/2008 | US7459913 Methods for the determination of film continuity and growth modes in thin dielectric films |
12/02/2008 | US7459897 Terminator circuit, test apparatus, test head, and communication device |
11/27/2008 | WO2008142447A1 Improvements relating to the testing of an earth connection |
11/27/2008 | US20080294365 Eliminating Inline Positional Errors for Four-Point Resistance Measurement |
11/27/2008 | US20080294359 Method and device for testing communication circuits |
11/27/2008 | US20080294358 Impedance-estimation methods, modeling methods, articles of manufacture, impedance-modeling devices, and estimated-impedance monitoring systems |
11/27/2008 | US20080290881 Wafer edge detection and capacitive probe therefor |
11/27/2008 | US20080290880 Network Analyzer Comprising a Switchable Measuring Bridge |
11/26/2008 | EP1994537A2 Adaptive temperature controller |
11/26/2008 | EP1384312B1 Tunable voltage controlled oscillator |
11/26/2008 | CN201156079Y Single slice battery essential resistance and voltage on-line testing system for fuel cell pile |
11/26/2008 | CN201156069Y Empty circuit board testing device |
11/26/2008 | CN201156064Y Channel extending apparatus |
11/26/2008 | CN201156062Y Capacitor and inductor test apparatus |
11/26/2008 | CN201156061Y Counter strike preventing mechanical megameter |
11/26/2008 | CN201156060Y Insulation detector of motor |
11/26/2008 | CN201156059Y Insulating resistor automatic detection recording apparatus |
11/26/2008 | CN100437017C Measurements using tunnelling current between elongate conductors |
11/25/2008 | US7457717 System for trouble shooting and verifying operation of spare assets |
11/25/2008 | US7456638 MEMS based conductivity-temperature-depth sensor for harsh oceanic environment |
11/25/2008 | US7456637 Measurement alignment system to determine alignment between chips |
11/25/2008 | CA2390774C Resonant antennas |
11/20/2008 | WO2008141061A1 Resistivity sense bias circuits and methods of operating the same |
11/20/2008 | WO2008139016A1 Impedimetric sensor and applications thereof |
11/20/2008 | US20080288195 System and method for automation of hardware signal characterization and signal integrity verification |
11/20/2008 | US20080285040 Electrical Detection of Plasmon Resonances |
11/20/2008 | US20080284451 Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance |
11/20/2008 | US20080284409 Signal Recognition Method With a Low-Cost Microcontroller |
11/20/2008 | US20080284350 Bulb type detector for dimmer circuit and inventive resistance and short circuit detection |
11/20/2008 | DE102007023189A1 Schaltungsanordnung zur Stromregelung einer Ventilspule Circuit arrangement for power control of a valve spool |
11/19/2008 | CN201152862Y Biological microgranule dielectric characteristic test chip |
11/19/2008 | CN101308176A On-line measurement electrochemical capacitor circuit |
11/18/2008 | US7454300 Extracting high frequency impedance in a circuit design using broadband representations |
11/18/2008 | US7453271 Apparatus and method for sensing water within a fuel-water separator assembly |
11/18/2008 | US7453270 Methods and systems for detecting a capacitance using sigma-delta measurement techniques |
11/18/2008 | US7453269 Magnetic MEMS sensor device |
11/18/2008 | US7453268 Input power protected ratiometric output sensor circuit |
11/13/2008 | WO2008137980A1 Production testing of a capacitive touch sensing device |
11/13/2008 | WO2008136928A2 Capacitive relay takeoff swimming platform sensor system |
11/13/2008 | WO2008135952A1 Active discharge of electrode |
11/13/2008 | WO2008135183A1 Device for checking the attachment of a circuit board on a carrier |