Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
05/2005
05/26/2005US20050110499 High-sensitivity measuring instrument
05/25/2005EP1533621A1 Method for matching an adaptive hybrid to a line
05/25/2005EP1532458A1 Direct, low frequency capacitance measurement for scanning capacitance microscopy
05/25/2005CN2702317Y Resistance instrument scaling method calibration circuit
05/25/2005CN1619318A Measuring method of electroconductirity of water
05/25/2005CN1203311C Method of measuring solution electrooconductivity
05/25/2005CN1203307C Complex microwave dielecric constant measuring method for ceramic with high dielectric constant and low loss
05/24/2005US6897673 Method and integrated circuit for capacitor measurement with digital readout
05/24/2005US6897661 Method and apparatus for detection of contaminants in a fluid
05/24/2005US6897660 Position sensor based on measuring capacitance
05/24/2005CA2118322C Apparatus for non-destructive testing of dielectric/magnetic materials
05/19/2005WO2005045450A1 Noncontact conductivity measuring instrument
05/19/2005WO2005045411A2 Method for determining the humidity and density of a dielectric material
05/19/2005WO2005001414A3 Method and apparatus for formulating and controlling chemical concentrations in a solution
05/19/2005US20050107972 Obtaining calibration parameters for a three-port device under test
05/19/2005US20050104607 Electrochemical impedance measurement system and method for use thereof
05/19/2005US20050104606 Systems and methods for measuring tear film osmolarity
05/19/2005US20050104605 Sensor and electrode extraction structure and method
05/19/2005US20050104604 Process and a circuit arrangement for evaluating a measuring capacitance
05/19/2005US20050104602 Method and apparatus for implementing automated electronic package transmission line characteristic impedance verification
05/19/2005US20050104579 Determining gaps between a proximity probe and a conductive target material
05/19/2005DE10392352T5 Meßschaltung mit kapazitivem Brückensensor Measuring circuit with capacitive sensor bridge
05/17/2005US6895343 System and method for measuring essential power amplification functions
05/17/2005US6894520 Semiconductor device and capacitance measurement method
05/17/2005US6894513 Multipoint plane measurement probe and methods of characterization and manufacturing using same
05/17/2005US6894507 Capacitance type sensor
05/17/2005US6894233 Systems and methods for classifying vehicles
05/12/2005WO2005043176A2 Probe testing structure
05/12/2005US20050099251 Circuit for detecting capacitance change in variable capacitance
05/12/2005US20050099198 Arrangement and method for testing a capacitance array in an integrated circuit
05/11/2005EP1529198A1 System for the production of a modular structure for the determination of a physical process variable and standardised components
05/11/2005CN1614433A Equipotential connecting resistance measuring equipment
05/11/2005CN1614432A Equipotential connecting resistance measuring system
05/11/2005CN1614431A Equipotential connecting resistance measuring equipment with recording function
05/11/2005CN1614427A Position regulator for pickup and non-contacted electric resistance rate determiner
05/10/2005US6891383 Soot detector for engine oil
05/10/2005US6891382 Three-dimensional characterization using a one-dimensional electrode array
05/10/2005US6891380 System and method for measuring characteristics of materials with the use of a composite sensor
05/10/2005US6891359 Circuitry and methodology to establish correlation between gate dielectric test site reliability and product gate reliability
05/10/2005US6889565 Fingerprint sensors using membrane switch arrays
05/06/2005WO2005040780A1 Apparatus and method for measuring resistivity of a liquid
05/05/2005US20050096860 Using vector network analyzer for aligning of time domain data
05/05/2005US20050095998 Tunable matching circuit
05/05/2005US20050093555 Method of measuring relative dielectric constant of dielectric substance of powders, cavity resonator used in the same, and application apparatus
05/05/2005US20050093554 System and method for determining S-parameters using a load
05/04/2005EP1528618A1 Method of measuring relative dielectric constant of dielectric substance of powders, cavity resonator used in the same, and application apparatus
05/04/2005EP1527348A1 Time-frequency domain reflectometry apparatus and method
05/04/2005DE202005001756U1 Mikrowellensensor zur Messung einer dielektrischen Eigenschaft eines Produkts Microwave sensor for measuring a dielectric property of a product
05/04/2005DE10119080B4 Verfahren und Schaltanordnung zur Widerstandsmessung Method and circuit arrangement for resistance measurement
05/04/2005CN2697660Y Tester for circuit board on-line investigating instrument
04/2005
04/28/2005US20050091015 Method and apparatus for modeling a uniform transmission line
04/28/2005US20050090212 Tracking generator with internal vector modulation source
04/28/2005US20050088191 Probe testing structure
04/28/2005US20050088186 Structure for measurement of capacitance of ultra-thin dielectrics
04/28/2005US20050088183 Methods for determining inductance and resistance of an inductor
04/28/2005US20050088182 Permittivity Monitor uses Ultra Wide Band Transmission
04/28/2005US20050088166 Automated testing of frequency converter device
04/27/2005CN2695965Y High stable electrochemical investigating analyzing combined circuit device
04/26/2005US6885341 Inverted-F ferroelectric antenna
04/26/2005US6885263 Tunable ferro-electric filter
04/21/2005WO2005036096A2 Measuring vector components of an electric field
04/21/2005US20050086038 Method and system for determining transistor degradation mechanisms
04/21/2005US20050086033 Extracting semiconductor device model parameters
04/21/2005US20050085200 Antenna interface unit
04/21/2005US20050083070 Method for detecting the operability of a number of identical zener diodes that are connected in parallel to one another and to a solenoid
04/21/2005US20050083066 Open-circuit detecting circuit
04/21/2005US20050083046 Method and circuit for detecting a change in inductance
04/20/2005EP1523784A2 Integrated circuit and method for manufacturing same
04/20/2005CN2694289Y High tension battery alternating current internal resistance tester
04/20/2005CN2694285Y Lighting cable conductor anti-theft monitoring device in lighting monitoring system
04/19/2005US6882950 Building and testing complex computer products with contract manufacturers without supplying proprietary information
04/19/2005US6882161 Method of measuring dielectric constant of PCB for RIMM
04/19/2005US6882160 Methods and computer program products for full N-port vector network analyzer calibrations
04/14/2005WO2005034359A1 Multi-phase measurement system with synchronized sigma delta converters
04/14/2005US20050077915 Method for measuring nm-scale tip-sample capacitance
04/14/2005US20050077911 Electrostatic capacitance detection device
04/14/2005DE10342472A1 Integrated circuit capacitance field testing arrangement, has means for cyclically charging and discharging capacitors and means for measuring the cycling frequency
04/13/2005EP1522850A2 Method and procedure for the determination of the resistance anisotropy in samples of layered rock
04/13/2005CN2692681Y Resistor measuring circuit for exchange mode
04/13/2005CN1605876A Direct current resistance comparison measurement method and measuring instrument
04/12/2005US6879918 Method and apparatus for measuring the transmission loss of a cable
04/12/2005US6879178 Measuring current on a die
04/12/2005US6879167 Noncontact measuring system for electrical conductivity
04/07/2005WO2005031375A1 Method and measuring device for determining the capacitanceof a capacitive electrical component connected to an integrated circuit
04/07/2005US20050075076 Method and apparatus for measuring impedance of electrical component under high interference conditions
04/07/2005US20050073325 Method and circuit arrangement for offset correction of a measurement bridge
04/07/2005US20050073324 Capacitance detector circuit, capacitance detection method, and fingerprint sensor using the same
04/07/2005US20050073323 Measuring method and apparatus of thin film thickness
04/07/2005US20050073322 Sensor system for measurement of one or more vector components of an electric field
04/07/2005US20050073321 Method and apparatus for determining the moisture content of a material
04/07/2005US20050073320 State detecting method and insulation resistance fall detector
04/07/2005US20050073317 Insulation resistance drop detector and method of detecting state thereof
04/07/2005US20050073302 Integrated sensor system for measuring electric and/or magnetic field vector components
04/07/2005DE10131675B4 Schaltungsanordnung und Verfahren zur Ermittlung einer Zeitkonstante eines Speicherkondensators einer Speicherzelle eines Halbleiterspeichers Circuit arrangement and method for determining a time constant of a storage capacitor of a memory cell of a semiconductor memory
04/06/2005EP1521203A2 Capacitance detector circuit, capacitance detector method and fingerprint sensor using the same
04/06/2005EP1521090A2 Capacitance detection apparatus
04/06/2005CN1603846A Capacitance detector circuit, capacitance detection method, and fingerprint sensor using the same
04/06/2005CN1195987C Circuit and method for measuring in-circuit resistance and current
04/05/2005US6876940 Measuring constraint parameters at different combinations of circuit parameters
04/05/2005US6876936 Measurement of inductance using a digital storage oscilloscope under real-time operating environments