Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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01/09/1996 | US5483172 Radio frequency measuring apparatus |
01/09/1996 | US5483169 RF imaging of low observable coatings using a wire-over-ground-plane transmission line |
01/03/1996 | EP0690492A2 Contactless sheet resistance measurement method and apparatus |
01/03/1996 | EP0690396A1 Apparatus and method for analyzing circuits |
01/03/1996 | EP0690310A2 Electromagnetic inductive probe |
01/03/1996 | EP0689677A1 Apparatus and methods for measuring and detecting variations in the value of a capacitor |
01/02/1996 | US5481200 Field transmitter built-in test equipment |
01/02/1996 | US5481198 Method and device for measuring corrosion on a portion of a metallic path carrying an undetermined load current |
01/02/1996 | US5481187 Method and apparatus for determining the position of an armature in an electromagnetic actuator |
12/26/1995 | US5479610 System interface fault isolator test set |
12/20/1995 | EP0687907A1 Micro Eddy current sensor |
12/19/1995 | US5477162 Method for determining the short-circuit inductance of an asynchronous machine |
12/14/1995 | CA2139265A1 Micro eddy current sensor |
12/13/1995 | EP0686852A2 LAN cable identifier for testing local area network cables |
12/13/1995 | EP0603340B1 Method and apparatus for testing coins |
12/05/1995 | US5473254 Test probe assembly provides precise and repeatable contact forces |
12/05/1995 | CA2043394C Amperimetric measurement with cell electrode deplating |
11/30/1995 | WO1995032434A1 Process for determining, in tt systems, the ground resistances in the feed system and in the user's installation |
11/30/1995 | DE4418134A1 Capacitance measurement circuit esp. for tank level sensor of e.g. motor vehicle |
11/29/1995 | EP0684482A2 Swept signal analysis instrument and method |
11/29/1995 | EP0550699B1 Method and apparatus for testing a dual airbag passive restraint system |
11/28/1995 | US5471147 Apparatus and method for determining the linear position of a hydraulic cylinder |
11/22/1995 | CN2213400Y Interference-free power supply phase shifter |
11/21/1995 | US5469364 Apparatus and methods for measuring and detecting variations in the value of a capacitor |
11/21/1995 | US5469071 Resistor sensor input apparatus |
11/21/1995 | US5469070 Circuit for measuring source resistance of a sensor |
11/21/1995 | US5469069 Method and apparatus for measuring resistivity of geometrically undefined materials |
11/21/1995 | US5469066 Method and apparatus for measuring deterioration of power cable insulation |
11/15/1995 | EP0682246A1 Sensor for measuring the conductivity of liquids |
11/15/1995 | EP0681686A1 Capacitance-resistance position sensor |
11/15/1995 | EP0640219B1 Integratable conductivity measuring device |
11/15/1995 | CN1030267C Anti electric field interference measuring method and device for medium loss angle and electric capacity |
11/14/1995 | US5467021 Calibration method and apparatus |
11/14/1995 | US5466976 Time constant detecting circuit and time constant adjusting circuit |
11/08/1995 | EP0681187A2 Instrument and method for testing local area network cables |
11/08/1995 | CN1111355A 电容测量装置 Capacitance measuring apparatus |
11/07/1995 | US5465287 In a telephone system |
11/02/1995 | WO1995029408A1 System for the remote measuring of the protection ground |
11/02/1995 | EP0679898A2 Insulation state measurement method for decentralized power generating system |
11/02/1995 | EP0679863A1 Device for measuring the position of a conductor of a cable within a cable covering |
10/31/1995 | US5463323 For measuring current and voltage at a device under test |
10/31/1995 | US5463317 Shield integrity monitor |
10/25/1995 | EP0628170B1 Process for detecting non-linear behaviour in a digital data transmission path to be examined |
10/24/1995 | US5461358 Resistance measurement circuit for external deployment path of sir system |
10/24/1995 | US5461324 Split-fixture configuration and method for testing circuit traces on a flexible substrate |
10/24/1995 | US5461321 Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle |
10/12/1995 | WO1995027189A1 Resistance measuring circuit, and thermal appliance, electrical thermometer and cold-generating appliance including such a measuring circuit |
10/11/1995 | CN1109976A Synchronous tracking measuring method for tolerance variable condenser |
10/10/1995 | US5457402 Armature resistance measuring apparatus and method |
10/10/1995 | US5457087 High temperature superconducting dielectric resonator having mode absorbing means |
10/04/1995 | EP0675607A2 Cable crosstalk measurement system |
10/04/1995 | EP0675347A1 Circuit for measuring a physical quantity |
10/03/1995 | US5455516 Meter and method for in situ measurement of the electromagnetic properties of various process materials using cutoff frequency characterization and analysis |
10/03/1995 | US5455513 System for measuring properties of materials |
09/28/1995 | WO1995025963A1 System for calibrating a line isolation monitor |
09/28/1995 | WO1995025962A1 Monitor for an ungrounded system |
09/28/1995 | WO1995025961A1 System for measuring line to ground impedance |
09/26/1995 | US5453689 Magnetometer having periodic winding structure and material property estimator |
09/26/1995 | US5453682 Meter for measuring a voltage |
09/21/1995 | WO1995025385A1 Capacitance-sensitive switch and switch array |
09/21/1995 | CA2185420A1 Capacitance-sensitive switch and switch array |
09/20/1995 | CN2208235Y High electric resistance measuring meter |
09/19/1995 | US5451940 Capacitive sensor signal processing arrangement using switch capacitor structures |
09/19/1995 | US5451884 Electronic component temperature test system with flat ring revolving carriage |
09/19/1995 | US5451882 Method of measuring dielectric constant of powder |
09/19/1995 | US5451866 Quick-mount measuring device for evaluating the electrical characteristics of ferroelectric materials |
09/13/1995 | EP0477228B1 Object detection and analysis with transmission lines |
09/13/1995 | EP0450053B1 Three-toroid electrodeless conductivity cell |
09/13/1995 | CN2207586Y Intelligent quick detecting microohmmeter |
09/13/1995 | CN2207585Y Solid specimen electrical character measuring device |
09/12/1995 | US5450328 System for measuring line to ground impedance |
09/12/1995 | US5450015 Apparatus for measuring impedance to determine a property of a material |
09/08/1995 | WO1995023979A1 A resistance network |
09/06/1995 | CN2206966Y Power cable anti-theft siren of three-phase electrical machinery |
09/05/1995 | US5448491 Monitor for an ungrounded system |
09/05/1995 | US5448178 Transient technique to determine solution resistance for simple and accurate corrosion rate measurements |
09/05/1995 | US5447745 Method of sealing |
08/30/1995 | EP0256087B1 Plated sensor for monitoring corrosion or electroplating |
08/29/1995 | US5446682 System for calibrating a line isolation monitor |
08/29/1995 | US5446444 Capacitive threshold detector test circuit |
08/25/1995 | CA2143272A1 Apparatus for measuring impedance to determine a property of a material |
08/23/1995 | EP0641433A4 Apparatus for non-destructive testing of dielectric/magnetic materials. |
08/23/1995 | CN2205971Y Fast inductance load microohm-meter using dc cell |
08/22/1995 | US5444759 Method of predicting voltages in telephone line measurement |
08/22/1995 | US5444597 Wafer release method and apparatus |
08/22/1995 | US5444381 Measuring circuit for impedance values particularly for use with inductive displacement transmitters |
08/22/1995 | US5444379 Electric conductivity measuring cell |
08/16/1995 | EP0667534A1 Method for measuring a resistance value |
08/16/1995 | CN1106925A Resistance-measurement based arrangement for monitoring integrity of travel path ground link in electronic components handling apparatus |
08/15/1995 | US5442515 Method and apparatus for controlling the current through a magnetic coil |
08/15/1995 | US5442297 Contactless sheet resistance measurement method and apparatus |
08/09/1995 | EP0665952A1 Device and method for identifying and quantifying layered substances |
08/08/1995 | US5440528 Dual time base zero dead zone time domain reflectometer |
08/08/1995 | US5440380 Imaging forming apparatus having transfer material carrying member for carrying transfer materials |
08/08/1995 | US5440251 Phase differential measurement circuit |
08/08/1995 | US5440238 Surface property detection apparatus and method |
08/08/1995 | US5440236 Calibrating a network analyzer by making multiple measurements on a common transmission line with a movable discontinuity |
08/03/1995 | WO1995020760A1 Apparatus for measuring the surface resistance and electric resistivity of a homogeneous resistive material at high temperature |
08/02/1995 | EP0665625A2 Method for obtaining an impedance value and for processing in a distance protection device |
08/02/1995 | EP0664888A1 Circuit for measuring source resistance of a sensor |