Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
05/2006
05/11/2006US20060099726 Capacitance detection type sensor and manufacturing method thereof
05/11/2006US20060097741 Method of and apparatus for testing for integrated circuit contact defects
05/11/2006US20060097735 Electrostatic capacitance detection device
05/11/2006US20060097734 Proximity detector comprising capacitive sensor
05/11/2006US20060097733 System and method for capacitive measuring
05/11/2006US20060097732 Position and electromagnetic field sensor
05/11/2006US20060097731 Accurate and efficient sensing method for bi-directional signals
05/11/2006US20060097730 Time-frequency domain reflectometry apparatus and method
05/10/2006EP1655569A1 Procedure for determining the wall thickness of a metal pipe
05/10/2006EP1597600A4 Improved microwave spectrometer
05/10/2006EP0970387B1 Static capacitance-to-voltage converter and converting method
05/10/2006CN1255961C Multi-port device analyse device and method and correcting method for the device
05/10/2006CN1255688C High sensitivity liquid dielectric constant measuring probe
05/09/2006US7043402 On-line oil condition sensor system for rotating and reciprocating machinery
05/09/2006US7043393 System and method for online specification of measurement hardware
05/09/2006US7043388 System and apparatus for testing packaged devices and related methods
05/09/2006US7042380 Digital potentiometer with resistor binary weighting decoding
05/09/2006US7042242 Built-in self test technique for programmable impedance drivers for RapidChip and ASIC drivers
05/09/2006US7042235 Method for the detection of leaks in components conducting liquids and device for executing the method
05/09/2006US7042234 Soil matric potential and salinity measurement apparatus and method of use
05/09/2006US7042233 Harmonic rejection tuner
05/09/2006US7042232 Cable and substrate compensating custom resistor
05/09/2006US7042230 Multi-parameter sensing system
05/09/2006US7042207 Inductive measurement system and method
05/09/2006US7040168 Apparatus for determining physical parameters in an object using simultaneous microwave and ultrasound radiation and measurement
05/09/2006US7040145 Method and apparatus for measuring dry density and water content of soil
05/04/2006WO2006046218A1 System for diagnosing impedances having accurate current source and accurate voltage level-shift
05/04/2006WO2005091893A3 System for high dynamic range analysis in flow cytometry
05/04/2006US20060092022 Method and apparatus for detecting charge and proximity
05/04/2006US20060091896 Method and apparatus for measuring coil current
05/04/2006US20060091895 Method for determining the wall thickness of a metal tube
05/04/2006US20060091894 Ultra-wide band pulse dispersion spectrometry method and apparatus providing multi-component composition analysis
05/04/2006US20060091893 Process for the relative locating of two electrical appliances
05/04/2006US20060091892 Method of determining the impedance of an electrochemical system
05/04/2006DE202006002692U1 Device for measuring impedance of electrical system has electrical conductors, load and measuring points whereby load to be measured is not at position near to measuring points and additional conductors can also be used
05/04/2006DE202005019740U1 Oscillator arrangement for measuring capacitance change, has reference oscillator oscillating to develop frequency and pulse width modulated signal, and ESD-prevention circuit with small self-capacitance against electrical zero point switch
05/04/2006DE102004052977A1 Method of diagnosis to determine changes in a capacitor for energy storage in vehicles due to aging based on measurement of several age dependent parameters
05/04/2006DE102004000035A1 Diagnosis method of determining aging state of capacitor involves measuring aging-dependent parameters through different discharge processes, each parameter being associated with value of component of equivalent diagram of capacitor
05/03/2006EP1653771A1 Detection apparatus and method of physical variable
05/03/2006EP0970386B1 Impedance-to-voltage converter
05/03/2006CN2777776Y Cable power indicator
05/03/2006CN2777561Y Charging mechanism for capacitor classifier
05/03/2006CN2777560Y Live measurer for testing insulated resistor of electrical appliance
05/03/2006CN1766660A Capacitance measuring arrangement, method, and program
05/03/2006CN1766659A Zero automatic detection method of positive and negative busbar insulating detection sensor
05/02/2006US7038473 Method and apparatus for measuring a fluid level and a motor vehicle provided with such apparatus
05/02/2006US7038472 Methods and systems for measuring internal dimensions of microscale structures
05/02/2006US7038471 Connector for measuring electric resistance, apparatus and method for measuring electric resistance of circuit board
05/02/2006US7038470 Parallel-plate capacitive element for monitoring environmental parameters in concrete
05/02/2006US7038469 Method of determining localized electron tunneling in a capacitive structure
05/02/2006US7038468 Method and a test setup for measuring large-signal S-parameters that include the coefficients relating to the conjugate of the incident waves
05/02/2006US7038467 Resonant network fluid level sensor assembly
04/2006
04/27/2006WO2005119276A3 Method for predicting lithology and porosity from seismic reflection data
04/27/2006US20060087329 Voltage measurement device
04/27/2006US20060087328 Amplitude varying driver circuit and test apparatus
04/27/2006US20060087327 Probe device and display substrate testing apparatus using same
04/27/2006US20060087326 Resistive sensing element circuit
04/27/2006US20060087325 Apparatus for making high-sensitivity measurements of various parameters, and sensors particularly useful in such apparatus
04/27/2006US20060087324 E-field mapping
04/26/2006EP1649297A1 High frequency circuit analyser
04/26/2006CN2775669Y Spring electrode resistance measurer
04/26/2006CN1763551A Method for measuring internal resistance of storage battery
04/26/2006CN1253722C Ferroelectric thin film material dielectric performance multi-frequency automatic testing method and device
04/26/2006CN1253721C Device for measuring impulse current of non-linear metal oxide resistor disc
04/25/2006US7036058 Semiconductor device having integrally sealed integrated circuit chips arranged for improved testing
04/25/2006US7035783 Program and method calculating resistance of a conductor in consideration of a skin effect
04/25/2006US7034629 High frequency, high reflection pre-matching tuners with variable zero initialization
04/25/2006US7034554 Method and apparatus for measuring impedance across pressure joints in a power distribution system
04/25/2006US7034553 Direct resistance measurement corrosion probe
04/25/2006US7034552 Operator sensing circuit for disabling motor of power equipment
04/25/2006US7034551 Electrostatic capacitance detection circuit and microphone device
04/25/2006US7034550 Ferromagnetic resonance measurement
04/25/2006US7034549 Device to detect and measure the concentration and characterization of airborne conductive or dielectric particles
04/25/2006US7034548 Balanced device characterization including test system calibration
04/25/2006US7034546 Method and apparatus for measuring insertion loss of a conductor
04/25/2006US7034519 High frequency measurement for current-in-plane-tunneling
04/25/2006US7032448 Capacitive humidity sensor
04/20/2006WO2006040403A1 Sensor and method for measuring a variable affecting a capacitive component
04/20/2006WO2005051169A3 Electrophysiological approaches to assess resection and tumor ablation margins and responses to drug therapy
04/20/2006DE19618897B4 Schaltungsanordnung zur Bestimmung des Isolationswiderstandes einer Akkumulatorenbatterie Circuit arrangement for determining the insulation resistance of a battery of accumulators
04/19/2006CN2773698Y Insulating resistance tester of 30 loop thin-membrane capacitor
04/19/2006CN1761882A Wave detection device, method, program, and recording medium
04/19/2006CN1252966C Network testing instrument
04/19/2006CN1252482C Method for testing internal capacitance of integrated circuit using CR circuit
04/19/2006CN1252481C Device, method and system for measurable parameter of circuit monitoring
04/19/2006CN1252463C Method and apapratus for nondestructive measurement and mapping of sheet materials
04/18/2006US7031868 Method and apparatus for performing testing of interconnections
04/18/2006US7031856 Automatic wire dielectric analyzer
04/18/2006US7031855 Current sense resistor circuit with averaging Kelvin sense features
04/18/2006US7030631 Method and apparatus for monitoring and determining the moisture content of a substance in a container
04/18/2006US7030630 Moisture sensor with capacitive moisture measuring element and method of determining air humidity
04/18/2006US7030629 In line fluid quality sensor
04/18/2006US7030628 Method and device for evaluating charge potential
04/18/2006US7030627 Wideband complex radio frequency impedance measurement
04/18/2006US7030626 High-frequency oscillation type proximity sensor
04/18/2006US7030625 Method and apparatus for performing a minimum connection multiport through-reflect-line calibration and measurement
04/18/2006US7030622 Bonding configuration structure for facilitating electrical testing in a bonding process and a testing method using the same
04/18/2006US7028529 Apparatus and methods for testing acoustic probes and systems
04/13/2006US20060080059 Apparatus for collecting information
04/13/2006US20060077072 Encoding techniques for a capacitance-based sensor