Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
12/2012
12/04/2012US8324903 Fluid conductivity sensor for actuating and testing an electroexploding device
12/04/2012US8323991 Method for detecting stress migration properties
11/2012
11/29/2012WO2012160118A1 Isolation monitoring using a test signal of variable frequency
11/29/2012US20120303305 Arrangement comprising an inductive proximity sensor, and method implementing such a sensor
11/29/2012US20120299605 Occupant detection sensor and manufacturing method of the same
11/29/2012US20120299604 Electric field sensor and implements comprising same
11/29/2012DE112010004190T5 Durch Oberflächenladung aktivierte nanoporöse semipermeable Membran zur Entsalzung Activated by surface charge nanoporous semipermeable membrane for desalination
11/29/2012DE112010002675T5 Kondensatorkapazitäts-Diagnoseeinrichtung und mit Kondensatorkapazitäts-Diagnoseeinrichtung ausgestattete elektrische Stromversorgungsvorrichtung Capacitor capacitance diagnostic device and equipped with condenser capacity diagnosis means electric power supply device
11/29/2012DE102012208426A1 Schätzvorrichtung zum Wiederaufladen von Batterien unter Verwendung der Impedanzantwort einer Batterie Estimating apparatus for recharging of batteries using the impedance response of a battery
11/29/2012DE102011050590A1 Isolationsüberwachung mit einem Prüfsignal variabler Frequenz Insulation monitoring with a variable frequency test signal
11/29/2012DE10115229B4 Verfahren zum Herstellen eines Oszillators A method of manufacturing an oscillator
11/28/2012CN202563014U Transformer loss measurement control console
11/28/2012CN202563013U Experimental device for measuring inductance
11/28/2012CN202563012U Large-scale power station grounding net impedance parameter measuring device
11/28/2012CN202563011U Semiconductor resistivity test instrument with functions of automatic measurement range switch and automatic correction
11/28/2012CN202563010U Cable conductor direct-current resistance testing device
11/28/2012CN202562963U Auxiliary clamp for resistance testing
11/28/2012CN202558662U Conductivity control circuit for treatment of distilled water
11/28/2012CN102804577A Capacitance determination in a switched mode power supply
11/28/2012CN102803910A Liquid level and quality sensing apparatus, systems and methods using emf wave propagation
11/28/2012CN102800476A High-voltage standard capacitor
11/28/2012CN102798766A Method for testing microwave dielectric property of high-loss dielectric substance
11/28/2012CN102798765A Indicator for quality factor of trigger
11/28/2012CN102798764A Method for measuring medium loss by using phase change of electromagnetic evanescent wave
11/28/2012CN102798763A Method for measuring conductivity of solution by adopting two waveform excitation signals
11/28/2012CN102798762A Method and apparatus for measuring borehole mud resistivity
11/28/2012CN102798761A Ground insulation impedance detection method, circuit and equipment with circuit
11/28/2012CN102798760A Method and circuit fir detecting ground insulation impedance of photovoltaic array
11/28/2012CN102798759A Insulation resistance test system
11/28/2012CN102798758A Method and system for measuring series reactance rate of shunt capacitor bank
11/28/2012CN102798757A Method and system for detecting contact resistance of bus joint of GIS (Geographic Information System)
11/28/2012CN102147382B Multiphase flow measuring method based on multiple-cross section impedance type double-differential pressure long-waist internal cone
11/28/2012CN102004190B Impedance test device of low-voltage electric power carrier channel
11/28/2012CN101968511B Small electrode experiment device for measuring resistivity of mineral and solid insulating material
11/28/2012CN101943716B Capacitance measurement circuit and method
11/27/2012US8319508 Method and apparatus to detect and locate roof leaks
11/27/2012US8319507 System and method for sensing an amplifier load current
11/27/2012US8319506 Detector state monitoring system and a portable detector including same
11/27/2012US8319505 Methods and circuits for measuring mutual and self capacitance
11/27/2012US8319504 Tuner characterization methods and apparatus
11/27/2012US8319500 Proximity sensor with health monitoring
11/24/2012CA2777273A1 Method and apparatus for measuring borehole mud resistivity
11/22/2012WO2012157349A1 Water concentration detecting device
11/22/2012WO2012156635A1 Device and method for estimating the resistance of the earth connection of an electrical apparatus
11/22/2012US20120296588 Resistor matrix offset compensation
11/22/2012US20120293336 Apparatus, and associated method, for testing a touch sensing device
11/22/2012US20120293194 Sensor
11/22/2012US20120293193 Water detecting apparatus
11/22/2012US20120293192 Charge read-out structure for a photon / particle detector
11/22/2012US20120293191 HVMOS Reliability Evaluation using Bulk Resistances as Indices
11/22/2012US20120293190 Capacitive sensor interference determination
11/22/2012US20120293189 Novel method and device for whole-cell bacterial bio-capacitor chip for detecting cellular stress induced by toxic chemicals
11/22/2012US20120293188 Apparatus and method of using impedance resonance sensor for thickness measurement
11/22/2012US20120293187 Simple and minimally invasive methods and systems for sensing and computing load impedance
11/22/2012US20120293186 Method, solvent formulation and apparatus for the measurement of the salt content in petroleum fluids
11/22/2012US20120293185 Determining the current return path integrity in an electric device connected or connectable to a further device
11/22/2012US20120293184 High frequency characteristic measuring device
11/22/2012US20120292255 Filtration and use of metal nanoparticles as non-optical tags in chemical-, bio-chemical sensors and micro-electromechanical devices
11/22/2012US20120291777 Identifying dry nebulizer elements
11/22/2012DE102010042477B4 Verfahren und Vorrichtung zum Bestimmen einer Kapazität und/oder einer Kapazitätsänderung eines kapazitiven Sensorelements Method and apparatus for determining a capacitance, and / or a change in capacitance of a capacitive sensor element
11/21/2012CN202548216U Device for live testing dielectric loss and capacitance of coupling capacitor
11/21/2012CN202548215U Intelligent contact resistance tester
11/21/2012CN202548214U Electronic insulation resistance detection device
11/21/2012CN202548213U High-voltage switch contact resistance live-line testing device
11/21/2012CN202548212U Hand-driven power frequency impedance meter
11/21/2012CN202548211U Device for fixing copper-clad aluminum conductor during resistance measurement of copper-clad aluminum conductor
11/21/2012CN202548175U Controller of dielectric loss testing device
11/21/2012CN102788907A Capacitance (CAP)/dissipation factor (DF) testing device
11/21/2012CN102788906A High-frequency impedance tester
11/21/2012CN102788905A Same tower multi-loop asymmetric line parameter measuring method under high-induced voltage
11/21/2012CN102788904A Cell internal resistance detector
11/21/2012CN102788903A Three-phase asymmetric power frequency parameter actual measuring method of high-voltage transmission line
11/21/2012CN102788902A High-voltage transmission line power frequency parameter actual measuring device capable of resisting against high-induced voltage interference
11/21/2012CN102095938B High-precision signal processing method for insulation online monitoring of high-voltage electric-power capacitive equipment
11/21/2012CN102029280B Recovery processing method for capacitive touch screens
11/21/2012CN101975817B Low-cost fiber pure material discriminator capable of being implanted into mobile phone and other portable devices
11/21/2012CN101975816B Method to conveniently identify purity of textile or leather fiber by electrical properties
11/21/2012CN101952713B System and method for measuring properties of liquid in multiphase mixtures using two open ended coaxial probes with different sensitivity depths
11/21/2012CN101876674B Characteristic impedance testing system and method
11/20/2012US8315832 Normalizing capacitive sensor array signals
11/20/2012US8314623 System and method for more accurate temperature sensing using thermistors
11/20/2012US8314622 Method and apparatus for examining ion-conductive electrolyte membrane
11/20/2012US8314621 Narrow band filter
11/20/2012US8314619 Distance detection system
11/20/2012CA2463907C Implantable sensor electrodes and electronic circuitry
11/15/2012WO2012152320A1 An arrangement and a method for determining a parameter of an alternating voltage grid
11/15/2012WO2012152284A1 Method for fault diagnosis on solar modules
11/15/2012WO2012151836A1 Power frequency parameter simulation system for a power transmission line and control method thereof
11/15/2012US20120290239 Thin metal film measurement method
11/15/2012US20120286813 Windshield moisture detector
11/15/2012US20120286812 Capacitance difference detecting circuit
11/15/2012US20120286811 Capacitance difference detecting method
11/15/2012US20120286810 Fluid quality sensor
11/15/2012US20120286809 Circuit Arrangement for Determining a Capacitance of a Number of Capacitive Sensor Elements
11/15/2012US20120286808 System for locating and identifying at least two separate items
11/15/2012US20120286807 Electronic circuit and method for determining an impedance
11/15/2012US20120286805 Loading state determiner, load assembly, power supply circuit and method for determining a loading state of an electric power source
11/15/2012US20120286804 Sensor device
11/15/2012US20120286803 Sensor
11/15/2012US20120286802 Sensor Electronics for a Plurality of Sensor Elements and Method for Determining a Position of an Object at The Sensor Elements
1 ... 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 ... 223