| Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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| 11/16/1993 | US5262729 Method of measuring characteristics of electronic parts |
| 11/16/1993 | CA1324410C Tomographic flow imaging system |
| 11/10/1993 | EP0568889A2 Process for calibrating a network analyser |
| 11/10/1993 | CN2146003Y Self-stabilizing D.C-D.C conversion milli-ohmmeter and million-ohmmeter |
| 11/10/1993 | CN1022711C Location sighting device of capacity type in gride shape |
| 11/09/1993 | US5260668 Semiconductor surface resistivity probe with semiconductor temperature control |
| 11/09/1993 | US5260667 Method and apparatus for determining the percentage water condent of oil in water emulsion by specific admittance measurement |
| 11/09/1993 | US5260663 Methods and circuits for measuring the conductivity of solutions |
| 11/04/1993 | DE4313705A1 Network analyser calibration using calibration standards for two-gate e.g. horn antenna network - performing first measurement of transmission and reflection characteristics with reflection-free strip line between network gates and performing three further calibrations using disturbances e.g. capacitance in line. |
| 11/03/1993 | EP0568198A2 Integrated circuit for physiological signal measurement |
| 11/03/1993 | EP0528924B1 Method and apparatus for bleaching textile webs |
| 10/28/1993 | WO1993021667A1 Directional coupler for vswr measurement |
| 10/28/1993 | WO1993021608A1 Method and apparatus for testing coins |
| 10/28/1993 | WO1993021537A1 Impedance measurement of lightning conductor earthing system |
| 10/28/1993 | WO1993021516A1 Meter and method for in situ measurement of the electromagnetic properties of various process materials using cutoff frequency characterization and analysis |
| 10/27/1993 | EP0457868B1 Arrangement for processing sensor signals |
| 10/27/1993 | CN1077800A Time constant detecting circuit and time constant adjusting circuit |
| 10/20/1993 | EP0216941B1 Apparatus for analysing two-channel transmission/reflection characteristics |
| 10/13/1993 | CN2143784Y Device for measuring loop resistance by using pulse constant current source |
| 10/12/1993 | US5252925 Detector assembly for an electromagnetic induction-type conductivity meter |
| 10/11/1993 | CA2065811A1 Method and apparatus for measuring dielectric properties of materials |
| 10/06/1993 | EP0564428A1 Electrical impedance detector for measurement of physical quantities, in particular of temperature, and process for manufacture of the said detector |
| 10/06/1993 | EP0564164A1 Capacitive proximity sensors |
| 10/06/1993 | CN1077023A Electrical impedance detector for measurement of physical quantities, in particular of temperature, and process for manufacture of said detector |
| 10/04/1993 | CA2065130A1 Method and means for sensing a change in a capacitance by a computer |
| 09/30/1993 | WO1993019379A1 Apparatus and method for measuring ground to earth impedance |
| 09/30/1993 | DE4210164A1 Remote state measurement, e.g. of complex impedance temp., pressure or humidity sensor - analysing voltages across sensor and series circuit contg. sensor and other components and forming quotient or difference of stored complex amplitude and phase of frequency components |
| 09/28/1993 | US5248955 Circuit arragement for compensation for the influence of temperature on coil quality |
| 09/22/1993 | EP0561054A1 Apparatus and procedure for measuring the time-constant of an electrical displacement transducer |
| 09/22/1993 | EP0560894A1 Apparatus and method for determining the linear position of a hydraulic cylinder. |
| 09/16/1993 | WO1993018413A1 Process and circuitry for measuring the capacity of a capacitor according to the reflectometric method |
| 09/16/1993 | DE4208272A1 Verfahren zur messung der kapazitaet eines kondensators nach der reflektometermethode und schalteinrichtung dazu Method for measuring the capacitance of a capacitor after reflektometermethode and switch means to |
| 09/16/1993 | DE4204369A1 Verfahren zur qualitaetsbestimmung eines einzelnen supraleitenden filmes und vorrichtung zur durchfuehrung dieses verfahrens Method for determining the quality of a single superconducting filmes and apparatus for performing this method |
| 09/15/1993 | EP0560400A2 Airbag restraint system and method to test such a system |
| 09/15/1993 | CN1022137C Wireless loss monitoring method for low-voltage circuits |
| 09/14/1993 | US5245295 Method of detecting a variation in stray capacitance by use of a pll circuit |
| 09/08/1993 | EP0558972A2 Differential dielectric analyzer |
| 09/08/1993 | EP0558736A1 Rotatable capacitance sensor |
| 09/08/1993 | EP0558488A1 Method and apparatus for testing a proctective barrier material for pinholes and tear strength |
| 09/08/1993 | CN2141899Y Powder mass resistivity measurer |
| 09/08/1993 | CN1076067A Near-end communications line characteristic measuring systems |
| 09/08/1993 | CN1076029A Electric field interference-proof measuring method and its apparatus for dielectric loss angle and capacitance |
| 09/02/1993 | WO1993017348A1 Process for detecting non-linear behaviour in a digital data transmission path to be examined |
| 09/01/1993 | EP0557327A1 Measuring instrument for determining the alcohol content of a mixture. |
| 09/01/1993 | EP0371020B1 Circuit for measuring variable inductance |
| 08/31/1993 | US5241280 Coating thickness measurement gauge |
| 08/31/1993 | US5241277 Test system for automatic testing of insulation resistance, capacitance and attenuation of each contact pair in a filter pin connector |
| 08/31/1993 | US5241269 Apparatus and method for measuring hysteresis characteristics in a high frequency range |
| 08/27/1993 | CA2130895A1 Process for detecting non-linear behavior in a digital data transmission path to be examined |
| 08/25/1993 | CN1075552A Numeral instrument for measuring earth resistance |
| 08/24/1993 | US5239283 Circuit arrangement for compensating for the influence of temperature on coil quality |
| 08/24/1993 | US5239269 Apparatus and method for measuring and imaging surface resistance |
| 08/24/1993 | CA1321619C Electrode line protection |
| 08/19/1993 | WO1993016393A1 Process for determining the quality of a single superconducting film and device for its implementation |
| 08/18/1993 | EP0555526A1 Assembly for floating potential capacitance measurement, in particular for capacitive filling level measurement |
| 08/17/1993 | US5237285 Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter |
| 08/17/1993 | US5237284 Measurement of capacitance and parameters related thereto for determining displacement |
| 08/11/1993 | EP0261227B1 Capacitive sensor and metal detector for detecting concealed objects |
| 08/10/1993 | US5235267 Circuit and a method for measuring a quantity influencing the capacitance-voltage characteristic of a capacitive element |
| 08/05/1993 | WO1993015564A1 Near-end communications line characteristic measuring system |
| 08/03/1993 | US5233306 Method and apparatus for measuring the permittivity of materials |
| 08/03/1993 | US5233297 Transient electromagnetic method and apparatus for inspecting conductive objects utilizing sensors that move during inspection |
| 07/29/1993 | DE4202137A1 Resistance and capacitance measurement circuit suitable for integration - contains function generator, produces pulses proportional to capacitance or resistance |
| 07/28/1993 | EP0552275A1 Moisture and salinity sensor and method of use |
| 07/22/1993 | WO1993014410A1 Method for determining the short-circuit inductance of an asynchronous machine |
| 07/22/1993 | WO1993014394A1 Conductivity sensor using energy conservation principle |
| 07/21/1993 | EP0552088A1 Well logging method and apparatus using passive azimuthal electrodes |
| 07/21/1993 | EP0551525A1 Conductivity measuring cell |
| 07/21/1993 | CN2138796Y Micro wave standing-wave ratio graphical representation device |
| 07/21/1993 | CN2138795Y Inductance inner resistance fast measurer |
| 07/13/1993 | US5227720 Apparatus and method using a bifilar coil with an integrated loop/switch for resistance measurement of superconductors |
| 07/13/1993 | CA1320251C Parallel plate dielectric analyzer |
| 07/07/1993 | EP0549911A1 Apparatus for monitoring inductance |
| 07/07/1993 | CN1074043A Numerical megger |
| 06/30/1993 | EP0549354A2 Time constant detecting circuit and time constant adjusting circuit |
| 06/30/1993 | EP0548495A1 Procedure and circuit for measuring inductance of a coil |
| 06/29/1993 | US5223798 Method for measuring the resistive transition and critical current in superconductors using pulsed current |
| 06/29/1993 | US5223796 Apparatus and methods for measuring the dielectric and geometric properties of materials |
| 06/24/1993 | WO1993012437A1 Method for determination of inductance |
| 06/24/1993 | DE4141933A1 Testing quality of electrically non-conducting protection on electrically conducting bases - involves applying AC test voltage and measuring current via test electrolyte on protective material |
| 06/24/1993 | DE4141545A1 Arrangement for measuring distances, position or angle variations - contains coil sensor element in form of spring expanding or contracting with variations in measurement parameter, evaluation circuit detecting self-induction coefficient variations |
| 06/24/1993 | CA2125562A1 Method for determination of inductance |
| 06/23/1993 | EP0547968A1 Measuring system for dielectric and magnetic properties of materials |
| 06/23/1993 | EP0547211A1 Capacitance measuring circuit and method for liquid leak detection |
| 06/22/1993 | US5221967 Signal quality monitoring system |
| 06/22/1993 | CA1319395C Identification of fluids and an interface between fluids |
| 06/10/1993 | WO1993011439A1 Method of determining electromagnetic impedances in the frequency range between 0 hz and 10 hz |
| 06/10/1993 | WO1993011426A1 Magnetometer of increased sensitivity, selectivity and dynamic range |
| 06/10/1993 | WO1993011369A1 Method and apparatus for determining the position of an armature in an electromagnetic actuator |
| 06/09/1993 | EP0544989A1 Methods and apparatus for correction of cable variations |
| 06/08/1993 | US5218312 Measurement apparatus for measuring a biological substance within a fluid substrate |
| 06/04/1993 | CA2072698A1 Methods and apparatus for correction of cable variations |
| 06/03/1993 | DE4139622A1 Verfahren zur bestimmung von elektromagnetischen impedanzen im frequenzbereich zwischen ohz und 10 ghz Method for the determination of electromagnetic impedances in the frequency range between ohz and 10 ghz |
| 06/02/1993 | EP0544367A1 Capacitive sensor having a conductive front face forming a capacitor/armature, and a shielded coaxial cable with a mineral-based insulation |
| 06/02/1993 | EP0543952A1 Transient electromagnetic inspection method and apparatus with moving sensors |
| 06/02/1993 | EP0543877A1 Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage |
| 06/02/1993 | EP0442898B1 Method and apparatus for measurement of capacitance and for capacitive measurement of displacement |
| 06/02/1993 | CN2135157Y Automatic powder resistivity measuring apparatus |
| 06/01/1993 | US5216373 Circuit element measuring apparatus and method for measuring a parameter of a DUT including a compensation network having an admittance characteristic |
| 06/01/1993 | US5216226 Apparatus for preventing and predicting deterioration of insulation in an electric equipment |