Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
04/2005
04/05/2005US6876212 Methods and structures for electronic probing arrays
04/05/2005US6876207 System and method for testing devices
04/05/2005US6876206 Automatic jack tester
03/2005
03/31/2005WO2005029102A1 Error factor acquisition device, method, program, and recording medium
03/31/2005US20050068050 Device for detecting a crack on a turbine blade of an aircraft engine
03/31/2005US20050068045 Capacitance detection apparatus
03/31/2005US20050068042 Electronic non-contacting linear position measuring system
03/31/2005DE10157529B4 Verfahren zur Bestimmung von Widerstands- und/oder Kapazitätswerten A method for determining the resistance and / or capacitance values
03/30/2005CN2689246Y Circuit alarming devices
03/30/2005CN1601285A Novel micromhmmeter
03/29/2005US6873922 Transient response analysis program of capacitor, recording medium, method of analysis, and simulator
03/29/2005US6873277 Multi-phase measurement system with synchronized sigma delta converters
03/29/2005US6873162 System and method for determining a dielectric property associated with a substrate
03/29/2005US6873159 Device and method for monitoring a capacitor bushing
03/24/2005WO2005026750A2 A measuring circuit and a method for determining a characteristic of the impedance of a complex impedance element for facilitating characterisation of the impedance thereof
03/24/2005WO2005010537B1 Power transfer measurement circuit for wireless systems
03/24/2005WO2004113935A3 Test fixture for impedance measurements
03/24/2005US20050065788 Hybrid speech coding and system
03/24/2005US20050065787 Hybrid speech coding and system
03/24/2005US20050065786 Hybrid speech coding and system
03/24/2005US20050065782 Hybrid speech coding and system
03/24/2005US20050065747 Mixed-signal core design for concurrent testing of mixed-signal, analog, and digital components
03/24/2005US20050062628 Multi-phase measurement system with synchronized sigma delta converters
03/24/2005US20050062487 Method for the detection of leaks in components conducting liquids and device for executing the method
03/24/2005US20050062486 Multifunctional conducting polymer structures
03/24/2005US20050062485 Capacitance detection apparatus, driving method for the same, fingerprint sensor, and biometric authentication apparatus
03/24/2005DE10329093B4 Induktivitätsmessverfahren Induktivitätsmessverfahren
03/23/2005EP1451596B1 Method for detecting the operability of a number of identical zener diodes that are connected in parallel to one another and to a solenoid
03/23/2005EP1021987B1 Body fat meter
03/23/2005CN2687684Y Digital capacitive-inductance measuring instrument
03/23/2005CN1598603A Device and method for testing capacitor array in integrated circuit
03/23/2005CN1598602A Equipment for continuous automatic measuring resistance of conducting material
03/23/2005CN1598601A Superconducting state monitoring system of superconducting current limiter
03/22/2005US6870386 Method and apparatus for measuring sheet resistance
03/22/2005US6870375 System and method for measuring a capacitance associated with an integrated circuit
03/22/2005US6870374 Process for identifying abnormalities in power transformers
03/22/2005US6868713 Device for determining the internal resistance of a linear oxygen probe
03/17/2005WO2004109527B1 A network analyzing method and a network analyzing apparatus
03/17/2005US20050060109 Measuring circuit and a method for determining a characteristic of the impedance of a complex impedance element for facilitating characterization of the impedance thereof
03/17/2005US20050057322 Apparatus and method for combining electrical signals
03/17/2005US20050057267 Soot detector for engine oil
03/17/2005US20050056539 Implantable sensor electrodes and electronic circuitry
03/17/2005DE10004628B4 Vorrichtung und Verfahren zur Analyse von Mehrkanalbauteilen sowie zugehöriges Kalibrierungsverfahren Apparatus and method for the analysis of multi-channel members and associated calibration method
03/16/2005EP1515147A1 Method and apparatus for determining the group delay caused by a device under test
03/16/2005CN1595182A Track circuit primary parameter measuring method
03/16/2005CN1595132A Two-phase fluid mesh capacitance tomography method
03/16/2005CN1193226C Electric conductivity measuring apparatus
03/15/2005US6868357 Frequency domain reflectometry system for testing wires and cables utilizing in-situ connectors, passive connectivity, cable fray detection, and live wire testing
03/15/2005US6867744 Tunable horn antenna
03/15/2005US6867605 Circuit for determining the internal resistance of a linear lambda probe
03/15/2005US6867601 Capacitance type sensor
03/15/2005US6867059 A-C:H ISFET device manufacturing method, and testing methods and apparatus thereof
03/10/2005WO2005022171A2 Method and apparatus for measuring impedance of electrical component under high interference conditions
03/10/2005US20050054911 Current density impedance imaging (CDII)
03/10/2005US20050052190 Digital time domain reflectometer sytem
03/10/2005US20050052187 Method and apparatus for measuring a parameter of a vehicle electrical system
03/09/2005EP1512022A1 Material segregation, density, and moisture analyzing apparatus and method
03/09/2005CN1192240C Equipment and method for testing antenna by switch
03/08/2005US6864691 Circuit arrangement for detecting the capacitance or capacitance change of a capacitive circuit element or component
03/08/2005US6864690 Apparatus for precision measurement of microwave material properties as functions of temperature and frequency
03/08/2005US6864673 Method and circuit arrangement for measuring earth leakages in intrinsically safe current feeds
03/04/2005CA2480430A1 Current density impedance imaging (cdii)
03/03/2005US20050046428 Capacitive probe assembly with flex circuit
03/03/2005US20050046427 Apparatus and method for improving microwave coupling to a resonant cavity
03/03/2005US20050046409 Systems and methods for performing RF power measurements
03/03/2005DE10336679A1 Leak detection method in which cladding arranged around liquid containing pipelines or components contains embedded electrodes permitting leak detection by measuring resistance or capacitance changes
03/03/2005DE10206521B4 Vorrichtung und Verfahren zur Messung von Potenzialen im Erdreich Apparatus and method for measuring potentials in the ground
03/03/2005DE102004034879A1 Verfahren und Vorrichtung zum Messen einer zu testenden Vorrichtung unter Verwendung einer verbesserten Durchgangs-Reflexions-Leitungs-Messkalibierung Method and apparatus for measuring a device under test using an improved passage-reflection line Messkalibierung
03/02/2005EP1125242A4 Method and system for biometric recognition based on electric and/or magnetic properties
03/02/2005CN2682425Y Null-type bridge circuit for grounded polling instrument
03/02/2005CN1588796A Quick filtering method for resistor live measuring
03/01/2005US6861985 Ferroelectric antenna and method for tuning same
03/01/2005US6861852 Method for measuring a gap between a proximity probe and a conductive target material
03/01/2005US6861849 Capacity measuring device and capacity measuring method
03/01/2005US6861846 Distortion measurements with a vector network analyzer
03/01/2005US6859990 Characteristics evaluation method of intermediate layer circuit
02/2005
02/24/2005WO2005017937A2 Sensor array for measuring plasma characteristics in plasma processing enviroments
02/24/2005US20050043908 Circuits and methods for characterizing random variations in device characteristics in semiconductor integrated circuits
02/24/2005US20050040835 Method and apparatus for measuring impedance across pressure joints in a power distribution system
02/24/2005US20050040833 Capacitance measuring circuit, capacitance measuring instrument, and microphone device
02/24/2005US20050040831 Filter calibration and applications thereof
02/24/2005US20050040488 a-C:H ISFET device, manufacturing method, and testing methods and apparatus thereof
02/24/2005US20050040487 a-C:H ISFET device, manufacturing method, and testing methods and apparatus thereof
02/24/2005DE10333154A1 Verfahren und Schaltungsanordnung zum Auswerten einer Messkapazität Method and circuit for evaluating a measuring capacity
02/24/2005DE10331628A1 Potentiometerdiagnose Potentiometerdiagnose
02/23/2005EP1508811A2 Method and apparatus for measuring impedance
02/23/2005EP1395840B1 Fault detection system and method
02/23/2005CN2681145Y Automatic detection device for toroidal piezoresistor parameter
02/23/2005CN2681144Y Conductance/voltage converter based on bipolar pulse current excitation
02/23/2005CN1584611A High resolution liquid conductance measuring method and apparatus thereof
02/23/2005CN1584610A Grounded resistance measuring apparatus
02/23/2005CN1584609A Method and apparatus for measuring impedance across pressure joints in a power distribution system
02/23/2005CN1584608A Method and structure for measuring glass baseplate and driving IC flowing rate
02/22/2005US6859104 Tunable power amplifier matching circuit
02/22/2005CA2096683C Method of and apparatus for automated sensor diagnosis through quantitative measurement of one of sensor-to-earth conductance or loop resistance
02/19/2005CA2477606A1 Method and apparatus for measuring impedance across pressure joints in a power distribution system
02/17/2005WO2005015246A1 Capacitance determining circuit and capacitance determining method
02/17/2005US20050036271 Sensor capacity sensing apparatus and sensor capacity sensing method
02/17/2005US20050035774 System for measuring signal path resistance for an integrated circuit tester interconnect structure
02/17/2005US20050035771 Impedance measuring circuit, it's method, and capacitance measuring circuit