Patents
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
06/1996
06/05/1996EP0493528B1 Vernier voltage-to-digital converter
06/05/1996CN1124060A Sensor for articles on an end effector
06/04/1996US5524281 Apparatus and method for measuring the phase and magnitude of microwave signals
06/04/1996US5523693 Balanced signal source
05/1996
05/30/1996WO1996016337A1 A measuring line for a coaxial conductor for determining energy throughflow and standing wave ratios
05/30/1996WO1996016330A1 Method and system for unobtrusively measuring physical properties in electrochemical processes
05/29/1996EP0714031A1 Method for contact diagnosis for electrical installations
05/29/1996CN2228236Y DC systems insulation fault in-line monitoring alarm and fault locating device
05/29/1996CN2228234Y Carbon-stick resistance tester
05/28/1996US5521510 Process for monitoring for organic impurities in water
05/28/1996US5521496 Detection circuits for position sensors
05/21/1996US5519820 Waveform display apparatus for easily realizing high-definition waveform observation
05/21/1996US5519328 Compensation for dielectric absorption effect
05/21/1996US5519325 Measuring apparatus for a passive element value using a current vector
05/21/1996US5519323 For measuring the electric conductivity of liquids
05/15/1996DE19512947C1 Contacting device for HF and LF measurements on multi-pair, symmetrical data cables
05/08/1996EP0710848A1 Procedure for measuring the voltage decay and the electron mobility of a material
05/08/1996CN2226772Y Conducting static electricity safety monitor for moving oil tank
05/07/1996US5514978 Stator turn fault detector for AC motor
05/07/1996US5514969 Impedance measurement in a high-voltage power system
05/07/1996US5514964 System for monitoring a dual voltage ungrounded system for leakage currents
05/01/1996EP0709686A2 Apparatus for measuring an RF parameter
05/01/1996EP0709650A2 Container inspection apparatus for determining the wall thickness of non-round containers and associated method
04/1996
04/24/1996CN2225690Y Sensor for conductivity
04/23/1996US5510717 Differential conductivity recirculation monitor
04/23/1996US5510716 Differential conductivity recirculation monitor
04/18/1996WO1996011410A1 Moisture detection meter
04/18/1996DE4444409C1 Coil inductance measuring device
04/17/1996EP0707217A2 Battery-fed utility meter with selectable measuring characteristic
04/17/1996EP0419562B1 Charge balanced feedback transmitter
04/17/1996CN1120672A Insulation state measurement method, insulation state judgement apparatus, and dispersion type power generating system using the same
04/17/1996CN1120661A Device for measurring position of cable wire in cable cover
04/16/1996US5508700 Capacitance sensitive switch and switch array
04/16/1996US5508621 Four-terminal ohmmeter apparatus
04/16/1996US5508620 Method and device for determining ground faults on the conductors of an electrical machine
04/16/1996US5508610 Electrical conductivity tester and methods thereof for accurately measuring time-varying and steady state conductivity using phase shift detection
04/16/1996US5508607 Electronic test instrument for component test
04/11/1996DE4443937A1 Metal or alloy prodn. process to give quality castings
04/11/1996DE19500077C1 Microwave measuring system for surface impedance measurements
04/10/1996EP0706209A2 Sheet resistance measurement
04/10/1996EP0706059A1 Calibrating procedure for a network analyzer using the 15-term principle
04/10/1996EP0706055A2 Method for calibrating a network analyzer according to the 7-term principle
04/10/1996EP0706045A1 Device for monitoring deposits in a pipe or vessel
04/09/1996US5507010 Arrangement for measuring at frequencies actually used for signalling, the condition of a receiving antenna positioned apart from other base station equipment at a base station of a radio system
04/09/1996US5506509 Circuit and method of measuring squib resistance
04/09/1996US5506497 Process and device for microwave surface resistance determination
04/04/1996WO1996010188A1 Method and device for measuring impedance in alternating current networks and method and device for preventing the formation of separate networks
04/04/1996DE19527033A1 Vorrichtung zum Messen des Temperaturkoeffizienten eines dielektrischen Resonators An apparatus for measuring the temperature coefficient of a dielectric resonator
04/02/1996US5504430 Method and apparatus of conductivity measurement
03/1996
03/28/1996WO1996009516A1 Sensor arrangement and method of detecting measured values using said sensor arrangement
03/28/1996DE4433772A1 Sensoranordnung und Verfahren zur Meßwerterfassung mit der Sensoranordnung Sensor system and method for data acquisition with the sensor array
03/27/1996EP0703459A1 Capacitor type acceleration sensor
03/27/1996EP0512025B1 Electrodeless conductivity sensor with inflatable surface
03/27/1996CN1119339A In situ monitoring technique and apparatus for chemical/mechanical planarization endpoint detection
03/26/1996US5502394 Compact, portable device for measuring the reflection coefficient of a structure exposed to microwave radiation
03/26/1996US5502392 Methods for the measurement of the frequency dependent complex propagation matrix, impedance matrix and admittance matrix of coupled transmission lines
03/20/1996CN2222926Y Capacitance and current measuring device for small earthing system
03/19/1996US5500599 Method and apparatus for the measurement of the dielectric constant of sample materials
03/19/1996US5499544 Capacitively coupled ohmic resistance position sensor
03/14/1996DE19533135A1 Load measurement in ferromagnetic element
03/12/1996US5499023 Method of and apparatus for automated sensor diagnosis through quantitative measurement of one of sensor-to-earth conductance or loop resistance
03/12/1996US5498969 Device for the vector measurement of ultra-high frequency signals of the same angular frequency of the six port junction type
03/12/1996US5498965 Driving point reference plane time domain reflectometry method for measuring characteristic impedance
03/12/1996US5498914 Capacitive sensor circuit
03/05/1996US5497098 Microwave sensor for identifying the surface properties of a workpiece and associated method
03/05/1996US5497095 Apparatus for inspecting electric component for inverter circuit
02/1996
02/29/1996WO1996006361A1 Capacitive measuring device with mosfet
02/28/1996EP0698780A1 Differential capacitance detector
02/28/1996EP0477379B1 Waveform display apparatus for easily realizing high-definition waveform observation
02/27/1996US5495178 Method and apparatus for measuring film thickness
02/27/1996US5495176 Ceramics cell for measuring electrical conductivity of liquid solution
02/27/1996US5495173 Method and apparatus for characterizing a differential circuit
02/27/1996US5495170 Time varying electrical conductivity tester using frequency discrimination and power detector and methods thereof
02/22/1996WO1996005516A1 System for monitoring a dual voltage ungrounded system
02/22/1996DE4429048A1 Multi-filament cable characteristics evaluation method
02/21/1996EP0697581A1 Flow sensor apparatus
02/21/1996EP0697113A1 Sensor for articles on an end effector
02/21/1996CN1117196A Inorganic thin film humidity-sensitive element with high performance and its producing method
02/21/1996CN1117136A Detecting and analysing method and apparatus for reliability of semiconductor laser
02/15/1996WO1996004563A1 Method of and apparatus for determining a response characteristic
02/15/1996DE4418176A1 Instrumentation meter with linear or digital measurement value signal output
02/15/1996DE19528972A1 Kabeldämpfungssimulator mit einem passiven Netzwerk für serielle digitale Signalquellen Cable loss simulator with a passive network for serial digital signal sources
02/14/1996EP0696742A2 Direct digital synthesis component test
02/13/1996US5491424 System for measuring contamination resistance
02/13/1996US5491421 Sheet thickness measuring apparatus which measures sheet thickness based on calculated capacity and resistence values of the sheet
02/12/1996CA2149848A1 Direct digital synthesis component test
02/08/1996DE19504271C1 Impedance measuring system for AS network
02/07/1996CN1116308A Power transmission line hot-line measuring method and device
02/06/1996US5489849 High accuracy calibration-free electrical parameter measurements using differential measurement with respect to immersion depth
02/01/1996DE19525430A1 Schaltungsnetzwerk-Meßeinrichtung und Kalibrierungsverfahren Circuit network-measuring device and calibration procedures
01/1996
01/31/1996EP0694786A1 Surface resistivity measuring probe
01/30/1996US5488310 Return-loss detection for serial digital source
01/24/1996CN1030800C Method and electrical measuring apparatus for analyzing impedance of source of actual alternating voltage
01/24/1996CN1030795C Dynamic and non-contact measurement of displacement or of permittivity by use of capacitive sensor
01/23/1996US5487014 Low cost automated system for evaluating the electrical characteristics of ferroelectric materials
01/18/1996WO1996001433A1 Characterizing a differential circuit
01/17/1996EP0692092A1 Apparatus for measuring the surface resistance and electric resistivity of a homogeneous resistive material at high temperature
01/11/1996WO1996000907A1 Shield integrity monitor
01/11/1996DE4421906A1 Measurement of resistance of resistance sensor in moisture sensor automatically activating vehicle windscreen wipers
01/09/1996US5483414 Electrical impedance detector for measurement of physical quantities, in particular of temperature