Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
11/2004
11/24/2004CN2658753Y Grounding electrode device used for measuring resistance to ground
11/24/2004CN1177218C Inspection method of piezoelectric ceramic device
11/24/2004CN1176633C Resin lid for bioelectrical impedance measurer
11/23/2004US6823276 System and method for determining measurement errors of a testing device
11/23/2004US6822473 Determination of permeability of layer material within interconnect
11/23/2004US6822438 Apparatus for measuring parasitic capacitance and inductance of I/O leads on electrical component using a network analyzer
11/18/2004WO2004100513A1 Method and arrangement for loop test of a disturbed line
11/18/2004WO2004100512A1 Method and arrangement for signal loop test
11/18/2004WO2004100363A2 Magnetic field response sensor for conductive media
11/18/2004WO2004099711A1 Method and arrangement for estimation of line properties
11/18/2004WO2003090353A3 Improved method and apparatus for tracking a resonant frequency
11/18/2004US20040227527 Method and relative test structure for measuring the coupling capacitance between two interconnect lines
11/18/2004US20040227526 Thickness detecting sensor
11/18/2004US20040227524 Method and system for measuring thickness of thin films with automatic stabilization of measurement accuracy
11/17/2004EP1077367B1 Capacitive force gauge
11/17/2004CN1547036A Ferroelectric thin film material dielectric performance multi-frequency automatic testing method and device
11/16/2004US6819194 Tunable voltage-controlled temperature-compensated crystal oscillator
11/16/2004US6819124 Detection of electromigration in integrated circuits
11/16/2004US6819122 Method for measuring a gap between a proximity probe and a conductive target material
11/11/2004US20040222804 Electrical component and method of manufacturing the same
11/11/2004US20040222802 Capacitive fingerprint sensor against ESD damage and contamination interference and a method for manufacturing the same
11/11/2004US20040222800 Enhanced isolation level between sampling channels in a vector network analyzer
11/11/2004DE202004010286U1 Measuring device for characterizing planar high-frequency substrate materials handles relative permittivities and dielectric losses
11/11/2004DE19606526B4 Verfahren zur Bestimmung des Widerstandswertes einer Widerstandsanordnung A method for determining the resistance value of a resistor arrangement
11/11/2004DE10064183B4 Verfahren zum Untersuchen eines piezoelektrischen Keramikelements A method of inspecting a piezoelectric ceramic element
11/10/2004EP1475642A1 Method and arrangement for measuring the coupling capacitance between two interconnect lines
11/10/2004EP1474697A1 Capacitance sensors with asynchronous ring oscillator circuit and capacitance
11/10/2004EP1474669A1 Method for determining the electrical resistance of an electrical supply lead to sensor elements, and a sensor arrangement
11/10/2004CN1545620A Regularization model for electrical resistance mapping
11/10/2004CN1544959A Resistance tomography data acquisition system based on bipolar pulse current drive
11/10/2004CN1175267C Capacity type humidity sensor and garbage processing method thereof
11/09/2004US6816797 System and method for measuring fuel cell voltage and high frequency resistance
11/09/2004US6816796 Resistance measuring circuit
11/09/2004US6816714 Antenna interface unit
11/09/2004US6815976 Apparatus and method for inspecting array substrate
11/09/2004US6815964 Test board de-embedding method to improve RF measurements accuracy on an automatic testing equipment for IC wafers
11/09/2004US6815959 Systems and methods for measuring properties of conductive layers
11/09/2004US6815958 Method and apparatus for measuring thickness of thin films with improved accuracy
11/09/2004US6815657 Reading apparatus
11/04/2004US20040220759 Leakage current or resistance measurement method, and monitoring apparatus and monitoring system of the same
11/04/2004US20040217766 Apparatus and methods for measuring resistance of conductive layers
11/04/2004DE4304060B4 Schaltungsanordnung zur Auswertung von Meßreaktanzen Circuit arrangement for evaluating Meßreaktanzen
11/04/2004DE202004013305U1 Kalibrierstandard Calibration
11/04/2004DE10061106B4 Verfahren und Vorrichtung zur Überprüfung elektrischer Materialeigenschaften Method and apparatus for checking electrical material properties
11/03/2004EP1473572A1 Apparatus and methods for measuring the resistance of conductive layers
11/03/2004EP1259831A4 Control system simulation, testing, and operator training
11/03/2004CN2653520Y Microwave ceramic medium pole resonant method detection clamp
11/03/2004CN1543305A Method for correcting measurement error and electronic component characteristic measurement apparatus
11/03/2004CN1542458A Method for testing internal capacitance of integrated circuit using bridge circuit
11/03/2004CN1542457A Method for testing internal capacitance of integrated circuit using CR circuit
11/03/2004CN1174512C Membrane electrode assembly with integral sensor and method for operating fuel battery
11/03/2004CN1174244C Square capacitance chromatographic imaging sensor
11/02/2004US6813589 Method and apparatus for determining system response characteristics
11/02/2004US6813578 Process for measuring CMOS device performance from hot carrier luminescence
11/02/2004US6812716 Method and apparatus for testing an electrical component
11/02/2004US6812715 Circuit and method for detecting load impedance
11/02/2004US6812714 Apparatus for collecting signal measurement data at signal ports of an RF and microwave device-under-test, under different impedance load conditions
11/02/2004US6812692 Inspection terminal for inspecting electronic chip component, and inspection method and inspection apparatus using the same
10/2004
10/28/2004US20040212377 Method for measuring resistivity of semiconductor wafer
10/28/2004US20040212374 Current-to-voltage converting apparatus and impedance measuring apparatus
10/28/2004DE10348027A1 Testsonde mit variabler Impedanz Test probe with variable impedance
10/28/2004DE10316901A1 Kontrollsystem und Kontrollverfahren zum Überprüfen der Funktion von LCD-Anzeigen Control system and control method for checking the function of LCD displays
10/28/2004DE10308029B3 Electrical component resistance value determination method e.g. for current measuring shunt resistance, using measuring bridge containing reference resistance in series with component and known resistances
10/28/2004DE10256064B4 Verfahren und Vorrichtung zur Bestimmung des Wassergehalts und der Leitfähigkeit in Böden und Schüttgütern Method and apparatus for determining the water content and the conductivity in soils and solids
10/28/2004DE102004012277A1 Sensorvorrichtung Sensor device
10/27/2004EP1471360A2 Capacitance detection electrode and method of manufacturing the same
10/27/2004EP1386173B1 Capacitance measuring circuit
10/27/2004CN2651763Y Bipolar pulse current excited resistor chromatographic image data collecting system
10/27/2004CN1541444A Electronic device and method of testing and of mfg.
10/27/2004CN1540463A Computer controller in drinking water device capable of testing conductivity of water
10/27/2004CN1173168C Stray field probe
10/26/2004US6809533 Quantitative imaging of dielectric permittivity and tunability
10/26/2004US6809531 Digital potentiometer device
10/26/2004US6809527 Method of measuring a characteristic of a capacitive type of sensor, a sensor characteristic measuring apparatus, a capacitive type of sensor apparatus, and an ic chip for measuring a sensor characteristic
10/26/2004US6809524 Testing of conducting paths using a high speed I/O test package
10/26/2004US6809507 Implantable sensor electrodes and electronic circuitry
10/26/2004US6808590 Method and apparatus of arrayed sensors for metrological control
10/21/2004WO2004090852A1 Control system and control method for checking the function of liquid crystal displays
10/21/2004US20040207426 Active prematching tuner system
10/21/2004US20040207412 Capacitance measurement circuit
10/21/2004US20040206455 Method and apparatus of arrayed, clustered or coupled eddy current sensor configuration for measuring conductive film properties
10/21/2004DE102004015528A1 Unterbrechungserfassungsschaltung für eine Sensorvorrichtung Interruption detecting circuit for a sensor device
10/21/2004CA2521737A1 Control system and control method for checking the function of liquid crystal displays
10/20/2004EP1469416A2 Electrostatic capacitance detection device
10/20/2004CN2650140Y Electronic integrating mega-ohm meter
10/20/2004CN1538184A Method of fast measuring direct current resistance of power transformer using excitation vibration
10/20/2004CN1538143A Electrosatatic capacity detector
10/20/2004CN1537770A Vehicle testing method for rail circuit leckage resistamce and its testing equipment
10/14/2004US20040204877 Apparatus for and method of calculating electromagnetic field intensity, and computer program product
10/14/2004US20040201386 Methods for determining inductance and resistance of an inductor
10/14/2004US20040201385 Method and apparatus for measuring dry density and water content of soil
10/14/2004US20040201383 Balanced device characterization including test system calibration
10/14/2004US20040201378 Electrical property evaluation apparatus
10/13/2004EP1244921B1 Time domain reflectometer display method
10/13/2004CN1537343A Tuning multiplexer
10/12/2004US6804810 Resistance and capacitance estimation
10/12/2004US6803859 Method and apparatus for active isolation in inductive loop detectors
10/12/2004US6803794 Differential capacitance sense amplifier
10/12/2004US6803776 Current-comparator-based four-terminal resistance bridge for power frequencies
10/12/2004US6803773 Method and circuit for detecting a change in inductance