Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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03/04/2004 | DE10154511B4 Netzwerkanalysator und Verfahren zur Vektorcharakterisierung von Frequenzumsetzungsvorrichtungen Network analyzer and method for vector characterization of frequency conversion devices |
03/04/2004 | CA2833510A1 Methods for transmitting a waveform having a controllable attenuation and propagation velocity |
03/04/2004 | CA2496322A1 Methods for transmitting a waveform having a controllable attenuation and propagation velocity |
03/03/2004 | EP1393403A2 Tunable phase shifter and applications for same |
03/03/2004 | EP1393087A1 Method for measuring fuse resistance in a fuse array |
03/02/2004 | US6701265 Calibration for vector network analyzer |
03/02/2004 | US6700392 Digital measurement circuit and system using a grounded capacitive sensor |
02/26/2004 | WO2004017025A1 System for the production of a modular structure for the determination of a physical process variable and standardised components |
02/26/2004 | WO2003052429A3 Method and apparatus for in-circuit impedance measurement |
02/26/2004 | US20040036488 Self-balanced active current bridge for measuring the impedance of an external device |
02/26/2004 | US20040036484 Liquid detection sensor, liquid detection apparatus and liquid detection system |
02/26/2004 | US20040036483 Liquid-medium immersed MEMs devices |
02/25/2004 | EP1390730A1 Integrated thin film liquid conductivity sensor |
02/25/2004 | EP1389946A2 Transformer-isolated alternating current power supply |
02/25/2004 | CN2604689Y Wide-range megohmmeter |
02/24/2004 | US6697749 Correction method of measurement errors, quality checking method for electronic components, and characteristic measuring system of electronic components |
02/24/2004 | US6696846 Self-balanced active current bridge for measuring the impedance of an external device |
02/24/2004 | CA2177903C Soil penetrometer |
02/19/2004 | WO2004015431A2 Stepped sine wave frequency response measurement system |
02/19/2004 | US20040034486 Stepped sine wave frequency response measurement system |
02/19/2004 | DE10235221A1 Network analyzer calibration method in which a port group is formed, calibrated and successively expanded with two port calibrations and transmission measurements in both directions |
02/18/2004 | CN1475782A Capacitance mechanics quantity sensor and its mfg. method and detector containing sensor |
02/17/2004 | US6693444 Circuit design for liquid property sensor |
02/12/2004 | US20040027140 Method & apparatus for testing an electrical component |
02/12/2004 | US20040025574 Method and device for the determination of at least one parameter of a mixture of a support, water and gas |
02/11/2004 | EP1388015A1 Contact control |
02/11/2004 | CN2603400Y Automatic remote controller for electrostatic grounding |
02/10/2004 | US6691050 Data acquisition instrument architecture with flexible data acquisition, processing and display |
02/10/2004 | US6690722 Method for characterizing frequency translation devices |
02/10/2004 | US6690568 Fluid dielectric variable capacitor |
02/10/2004 | US6690251 Tunable ferro-electric filter |
02/10/2004 | US6690186 Methods and structures for electronic probing arrays |
02/10/2004 | US6690183 Resistance measurement |
02/10/2004 | US6690177 Frequency selective improvement of the directivity of a return loss bridge |
02/10/2004 | US6690176 Low-loss tunable ferro-electric device and method of characterization |
02/10/2004 | US6688119 Methods and apparatus for increasing appliance measuring system accuracy |
02/05/2004 | WO2004011951A1 Capacitor transient response analysis program, recording medium thereof, transient response analysis method, and simulator |
02/05/2004 | US20040024551 Method in an integrated circuit (IC) manufacturing process for identifying and redirecting IC's mis-processed during their manufacture |
02/05/2004 | DE4304061B4 Schaltungsanordnung zur Auswertung von Meßreaktanzen Circuit arrangement for evaluating Meßreaktanzen |
02/05/2004 | DE10333559A1 Kapazitiver Sensor für eine dynamische Größe, Verfahren zur Herstellung eines kapazitiven Sensors für eine dynamische Größe und Detektor mit einem kapazitiven Sensor für eine dynamische Größe Capacitive sensor for dynamic size, method of manufacturing a capacitive sensor for dynamic size and detector with a capacitive sensor dynamic quantity |
02/05/2004 | DE10232294A1 Determining electromagnetic losses in collectorless electrical machine with number of coil windings involves deriving losses from measured current in winding, applied voltage between two time points |
02/04/2004 | EP1386173A1 Capacitance measuring circuit |
02/04/2004 | CN1473378A Electric resistance measuring connector and measuring device and measuring method for circuit board electric resistance |
02/04/2004 | CN1472520A Electrostatic capancitance sensor |
02/04/2004 | CN1472519A Electrostatic capacitance sensor |
02/03/2004 | US6687631 Laplace transform impedance spectrometer and its measurement method |
02/03/2004 | US6686749 Multiple frequency grain moisture sensor for combines |
01/29/2004 | US20040019442 Film thickness measuring method, relative dielectric constant measuring method, film thickness measuring apparatus, and relative dielectric constant measuring apparatus |
01/29/2004 | US20040017209 Capacitive dynamic quantity sensor, method for manufacturing capacitive dynamic quantity sensor, and detector including capacitive dynamic quantity sensor |
01/29/2004 | DE10318221A1 System und Verfahren zum Messen von essentiellen Leistungsverstärkungsfunktionen System and method for measuring power amplification essential functions |
01/28/2004 | EP1384312A1 Tunable voltage controlled oscillator |
01/28/2004 | EP1384286A1 Inverted-f ferroelectric antenna |
01/28/2004 | EP1384285A1 Ferroelectric antenna and method for tuning same |
01/28/2004 | CN1136459C Method and apparatus for detecting out-of-step in electric power system |
01/28/2004 | CN1136458C DC system earthing-point detecting method |
01/27/2004 | US6683471 Power detector using FET transistor |
01/27/2004 | US6683464 Stabilized conductivity sensing system |
01/27/2004 | US6683462 Apparatus for and method of measuring capacitance with high accuracy |
01/22/2004 | WO2004008160A1 Method of determining the impedance of an electrochemical system |
01/22/2004 | US20040015306 Method of and apparatus for accurate resistance measurement with a programmable current source |
01/22/2004 | US20040012399 Circuit design for liquid property sensor |
01/22/2004 | US20040012383 Electric resistance measuring connector and measuring device and measuring method for circuit board electric resistance |
01/21/2004 | EP1382083A1 Tunable multiplexer |
01/21/2004 | CN2600820Y Internal resistance of source measuring instrument |
01/21/2004 | CN1135394C Super high frequency reflectometer and its method and microwave oven equiped with the same |
01/20/2004 | US6680617 Apertured probes for localized measurements of a material's complex permittivity and fabrication method |
01/15/2004 | WO2004006169A1 Capacitive circuit array for fingerprint sensing |
01/15/2004 | WO2004005947A1 Time-frequency domain reflectometry apparatus and method |
01/15/2004 | WO2004005943A2 Frequency domain reflectometry system for testing wires and cables utilizing in-situ connectors, passive connectivity, cable fray detection, and live wires testing |
01/15/2004 | US20040010384 System and method for measuring essential power amplification functions |
01/15/2004 | US20040008042 Direct, low frequency capacitance measurement for scanning capacitance microscopy |
01/15/2004 | US20040008039 Capacitance type sensor |
01/15/2004 | US20040008038 Capacitance type sensor |
01/15/2004 | US20040008037 Capacity measuring device and capacity measuring method |
01/15/2004 | US20040008033 Apparatus for determining doping concentration of a semiconductor wafer |
01/15/2004 | US20040007045 Device for determining the internal resistance of a linear oxygen probe |
01/14/2004 | EP1380106A1 Tunable matching circuit |
01/14/2004 | CN1467807A Capacitance measurement method |
01/14/2004 | CN1135028C Method for measuring standing wave ratio in mobile communication system |
01/14/2004 | CN1134670C Method and device for measuring standing-wave ratio |
01/13/2004 | US6677768 Orientation sensor especially suitable for use in an underground boring device |
01/13/2004 | US6677764 System for protecting electronic test equipment from charged capacitors |
01/13/2004 | US6677762 Method for determining the permeability of a magnetic material by coaxial line perturbation |
01/13/2004 | US6677744 System for measuring signal path resistance for an integrated circuit tester interconnect structure |
01/13/2004 | US6675633 Method for seal testing capacitive sensors |
01/08/2004 | US20040004487 Fuel sensor |
01/08/2004 | US20040004484 System and method for quantitative measurements of a material's complex permittivity with use of near-field microwave probes |
01/08/2004 | DE10225058A1 Verfahren und Vorrichtung zur selektiven Erfassung von Erdschlusswischern in Drehstromnetzen Method and apparatus for selective detection of Erdschlusswischern in three-phase systems |
01/08/2004 | DE10225042A1 Integrierter Schaltkreis und Verfahren zur Herstellung desselben Integrated circuit and method of manufacturing the same |
01/07/2004 | EP1377994A1 Tunable ferro-electric filter |
01/07/2004 | EP1377839A1 Low-loss tunable ferro-electric device and method of characterization |
01/07/2004 | CN1466689A Measurement of fuel cell impedance |
01/07/2004 | CN1465986A Method for testing single phase grounding current of electric power network |
01/07/2004 | CN1465981A Electric bridge for experiment |
01/07/2004 | CN1133878C Isofrequency measuring method for earth resistance and apparatus thereof |
01/06/2004 | US6674295 Impedance measuring apparatus for electronic component |
01/02/2004 | EP1376142A1 Method and apparatus for testing an electrical component |
01/02/2004 | EP1373030A1 Occupant sensor |
01/01/2004 | US20040002831 Method for verifying cross-sections |
01/01/2004 | US20040000917 System and method for measuring a capacitance associated with an integrated circuit |