Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
08/2000
08/22/2000US6107811 Coupon monitor for cathodic protection system
08/17/2000WO2000048010A1 Measuring method for a capacitive measuring system
08/17/2000WO2000048009A1 Apparatus and method for determining return loss of an electrical device
08/16/2000EP0902895A4 Interferometric signal processing apparatus
08/15/2000US6104200 Apparatus and methods for generating unambiguous large amplitude timing makers in time domain reflectometry systems for measuring propagation velocities of RF pulses to determine material liquid contents moisture
08/15/2000CA2194956C Capacitive measuring device with mosfet
08/10/2000WO2000046612A1 Multi-port device analysis apparatus and method and calibration method thereof
08/10/2000WO2000046605A2 Scattering parameter calibration system and method
08/09/2000EP1025447A1 Handheld vector network analyzer (vna) operating at a high frequency by mixing lo and rf signals having offset odd harmonics
08/09/2000CN2391204Y Automatic shifting phase anti-interference dielectric loss measuring instrument
08/09/2000CN2391203Y Rotary eddy current detecting probe
08/08/2000US6101374 Radio communication apparatus having two antennas controlled by standing wave ratio
08/03/2000WO2000045450A2 Integral sensors for monitoring a fuel cell membrane and methods of monitoring
08/02/2000CN1055160C Dielectric loss measuring method and equipment for high voltage electric equipment
08/01/2000US6097194 Method and apparatus for obtaining transfer characteristics of a device under test
08/01/2000US6097193 Vehicle starting battery cold-cranking AMPS meter and method
08/01/2000CA2188146C System for the remote measuring of the protection ground
07/2000
07/26/2000EP1022570A2 Failsafe monitoring system for potentiometers
07/26/2000EP1021987A1 Body fat meter
07/25/2000US6094491 Capacitive touch detection
07/22/2000CA2296939A1 Failsafe monitoring system for potentiometers
07/20/2000DE19901750A1 Phase noise measurement unit uses feedback to cancel unit contribution to phase noise
07/20/2000DE19852086C1 Verfahren zur Korrektur der frequenz- und längenabhängigen Leitungsdämpfung bei FDR-Messungen an Hochfrequenzkabeln Method for correcting the frequency and length-dependent line attenuation in FDR measurements on high-frequency cables
07/19/2000EP0664888B1 Circuit for measuring source resistance of a sensor
07/18/2000US6091080 Evaluation method for wirings of semiconductor device
07/12/2000EP1018637A1 Apparatus and method for detecting change in the resistance of a connector in a sensor circuit
07/12/2000EP1018025A1 Capacitance measurement of a dielectric medium
07/12/2000EP0850419B1 Near-field resistivity microscope
07/11/2000US6087865 Programmable frequency divider
07/06/2000WO2000038959A1 Occupant detection system
07/06/2000WO2000038958A1 Occupant sensor
07/06/2000WO2000038957A1 Occupant detection system
07/06/2000WO2000038956A1 Occupant sensor
07/06/2000WO2000038955A1 Occupant detection system
07/06/2000CA2292144A1 Apparatus and method for detecting electrical resistance change in connectors to a remote mounted sensor
07/05/2000EP0733201B1 System for measuring properties of materials
07/04/2000CA2159134C Spread spectrum code pulse position modulated receiver having delay spread compensation
06/2000
06/29/2000DE19908360A1 Verfahren zum Betreiben eines Wirbelstromsensors und Wirbelstromsensor A method of operating an eddy current sensor and eddy current sensor
06/28/2000EP1014575A1 Method and tuner for seeking and setting a resonance frequency
06/27/2000US6081125 Network analyzer
06/27/2000US6080278 Fast CD and MD control in a sheetmaking machine
06/21/2000EP1010249A1 Direct sensor interface (dsi) module
06/21/2000CN1257208A Network dirct-to-ground capacitance and current measuring instrument
06/20/2000US6078182 Resistance measuring meter with voltage multiplier
06/15/2000WO2000035092A1 Method and device for measuring the damping of a lc-oscillating circuit
06/15/2000WO2000035090A1 Multilevel current generator with digital control and system for testing the endurance of a component equipped with same
06/15/2000WO2000034796A1 Scanning single electron transistor microscope for imaging ambient temperature objects
06/14/2000EP1008364A1 Self-testing grounding device
06/14/2000CN2383078Y Hook earthed ohmmeter
06/14/2000CN1256758A Impedance-to-voltage converter and converting method
06/14/2000CN1256757A Capacitance detection system and method
06/14/2000CN1256756A Impedance detection apparatus and method
06/13/2000US6075464 Dynamic and non-contact measurement of displacement or of permittivity by use of a capacitive sensor
06/13/2000US6075448 Apparatus and method for testing an electrical circuit
06/13/2000US6073488 Capacitive liquid level sensor with integrated pollutant film detection
06/08/2000WO2000033242A1 Component used as a sensor and production method
06/08/2000DE19856408A1 Capacitive sensor system for contactless keyboards. sensor arrangements, sensor surfaces and/or contact sensitive display systems operable through electrically non-conducting material based on variable time constants or delay times
06/07/2000CN2382025Y Resistor measuring instrument
06/07/2000CN1255975A Resistance-voltage converter
06/07/2000CN1255974A Static capacitance-to-voltage converter and converting method
06/06/2000US6073083 Arrangement for determining the internal resistance of a lambda probe
06/06/2000US6072309 Paper stock zeta potential measurement and control
06/02/2000WO2000031553A1 Charge transfer capacitance measurement circuit
05/2000
05/31/2000DE19957327A1 Positioning device for setting measurement device for positions regulation of machine-part has moving device of first end in opposition to that on second end in same level and crosswise to direction of distance-alteration of two ends
05/31/2000DE19914488C1 Cell resistance evaluation device for magnetoresistive memory
05/31/2000CN2380925Y Apparatus for measuring resistance of sensor
05/30/2000US6069849 Method and system for measuring signal propagation delays using the duty cycle of a ring oscillator
05/25/2000WO2000029862A1 Method for correcting frequency- and length-dependent line attenuation for fdr-measurements carried out on high-frequency cables
05/25/2000DE19852591A1 Verfahren zur Prüfung einer Erdverbindung A method for testing an earth connection
05/23/2000US6067507 Method in an integrated circuit (IC) manufacturing process for identifying and redirecting IC's mis-processd during their manufacture
05/23/2000US6066955 Orientation sensor especially suitable for use in an underground boring device
05/23/2000US6066953 Architecture for RF signal automatic test equipment
05/17/2000EP1001270A2 Method for testing a ground connection
05/17/2000EP1000363A1 Spreading resistance profiling system
05/17/2000EP1000362A1 Method for determining very low capacities and sensor designed therefor
05/17/2000EP1000348A1 Device and method for carrying out a contactless measurement of the conductivity of a liquid situated in a flow channel
05/17/2000CN2378714Y Expanded phase demodulating capacitor grid transducer
05/16/2000US6065137 Network analyzer measurement method using adaptive signal processing
05/16/2000US6064313 Alternating current circuit and outlet tester
05/16/2000US6064212 Method for determining the transmission characteristics of an electric line
05/11/2000WO2000027173A1 Test coupon for printed wiring board
05/11/2000WO2000026848A1 Method and apparatus for shooting using biometric recognition
05/11/2000WO2000026661A1 Sensor arrangement for detecting the physical properties of liquids
05/11/2000DE19850799A1 Sensoranordnung zur Ermittlung physikalischer Eigenschaften von Flüssigkeiten Sensor assembly to determine the physical properties of liquids
05/11/2000DE19850290A1 Circuit for linear capacitive measurement circuit, e.g. for distance or level sensor, has comparator which compares output of rectifier with reference voltage
05/11/2000DE19849580A1 Measuring available effective power or source reflection factor at reference impedance of signal generator involves measuring three or more load reflection factors and respective effective powers delivered by signal generator
05/10/2000EP0998874A2 An impedance measuring device and a health management device using the same
05/10/2000EP0998677A2 System for measuring the alternating current equivalent series resistance of a conductor
05/10/2000CN1252908A Data communication terminal and method of adjusting a power signal generated therefrom
05/10/2000CN1052306C Field transmitter built-in test equipment
05/10/2000CN1052150C Apparatus for ascertaining complex dielectric constant of tobacco
05/09/2000US6060888 Error correction method for reflection measurements of reciprocal devices in vector network analyzers
05/04/2000WO2000025098A2 Capacitive measuring device
05/04/2000DE19823836C2 Vorrichtung und Verfahren zum berührungsfreien Messen der Leitfähigkeit einer in einem Strömungskanal befindlichen Flüssigkeit Apparatus and method for contactless measurement of the conductivity of a liquid contained in a flow channel
05/04/2000CA2347988A1 Capacitive measuring device
05/03/2000CN1052112C Wafer release method and apparatus
04/2000
04/26/2000EP0995125A1 Microwave reflectometer and method, and microwave oven equipped therewith
04/26/2000EP0995083A1 Capacitative level detector with optimized electrode geometry
04/25/2000US6054867 Method for stabilizing feedback loop of impedance measuring apparatus
04/25/2000US6054865 Multiple function electrical safety compliance analyzer