Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
11/2008
11/06/2008US20080275657 Method for noninvasive determination of a distribution of electrical current and apparatus for the same
11/06/2008US20080274702 Method and Device for Measuring Radio Interference Levels With Frequency Tracking
11/06/2008US20080272762 Inverter
11/06/2008DE10317582B4 Fahrzeuglichtmaschinen-Fehlerbestimmungsvorrichtung Vehicle alternator failure determination apparatus
11/06/2008DE102007020954A1 Signaling device for electrical monitoring unit, particularly for short and ground circuit indicator, has illuminant for optical and visual signal perception, and illuminant radiates predominant portion of its emitted light as main light
11/05/2008CN201146301Y Energy-saving power socket capable of setting power-off mode
11/05/2008CN201146295Y Antistatic hand loop earthing socket with alarm device
11/05/2008CN201146143Y Insulation type wall knob switch
11/05/2008CN201145944Y Network modularization electric power tolerance monitoring device
11/05/2008CN201145727Y Intelligence voltage stabilizing diode test pen
11/05/2008CN201145726Y Simple electric power transistor tester
11/05/2008CN201145706Y Hall current sensor
11/05/2008CN201145705Y Battery voltage measuring circuit
11/05/2008CN201145704Y Platform zone power off notifying device
11/05/2008CN201145585Y Voltage signal conditioning circuit
11/05/2008CN201144813Y Digital type compressor special-purpose protector
11/05/2008CN101299315A Test system for display panel
11/05/2008CN101299149A Electric appliance standby energy-saving apparatus
11/05/2008CN101299050A Method for detecting voltage stability based on power transfer path
11/05/2008CN100431064C Changing current ratio of 10KV and higher high-voltage current transformer under live condition
11/05/2008CN100430738C Method and circuit arrangement for the self-testing of a reference voltage in electronic components
11/05/2008CN100430737C Method and circuit arrangement for the self-testing of a reference voltage in electronic components
11/04/2008US7446574 Voltage detecting circuit and battery device using same
11/04/2008US7446549 Semiconductor leakage current detector and leakage current measurement method, semiconductor leakage current detector with voltage trimming function and reference voltage trimming method, and semiconductor integrated circuit thereof
11/04/2008US7446522 Constant contact wheel for close interval survey devices
10/2008
10/30/2008US20080265916 Method of performing signal-measured calibration
10/30/2008US20080265864 Phase Identification Systems and Methods
10/30/2008DE10309937B4 Diagnoseschaltung zur Prüfung eines Kondensators und zugehöriges Verfahren Diagnostic circuit for testing a capacitor and associated method
10/30/2008DE102006055638B4 Schaltungsanordnung und Verfahren zur Energieversorgung und Taktung für getaktete Verbraucher Circuit arrangement and method for power supply and clock for timed load
10/29/2008CN201142520Y Electric examination device for high-tension switch cabinet
10/29/2008CN201141909Y Electric signal non-isolation testing apparatus of permanent magnet synchronization motor
10/29/2008CN201141891Y Power consumption collection module
10/29/2008CN201141890Y Digital potentiometer
10/29/2008CN201141889Y Display equipment for high voltage live display device
10/29/2008CN201141888Y High tension electroscope
10/29/2008CN201141887Y Sensor for live-wire display of movable metal-enclosed high-voltage switch assembly
10/29/2008CN201141886Y Test pencil
10/29/2008CN201141885Y Ripple voltage and bus-bar voltage monitoring relay of transforming station DC system
10/29/2008CN201141882Y Rare earth permanent-magnet circuit construction of amperometer
10/29/2008CN101297220A Sensor and system for sensing an electron beam
10/29/2008CN101297202A Method for generating data group, on-the-spot apparatus and system for collecting electric energy quality of electric power supply system
10/29/2008CN101294996A Measuring circuit
10/29/2008CN101294994A Three-phase four-wire system electric energy quantifier with overload protection
10/29/2008CN101294992A Semiconductor device having differential signal detection circuit for entry into mode other than normal operation
10/29/2008CN101294991A Flip-latch for electric voltage dropping detection
10/29/2008CN101294990A Current/voltage inbreak testing apparatus
10/29/2008CN101294989A Three-phase optical fiber electric mutual inductor
10/29/2008CN101294988A Optical fiber type electric mutual inductor
10/29/2008CN101294987A Wiring substrate and current detection device
10/28/2008US7444250 Measuring or test device comprising interchangeable functional units
10/28/2008US7444248 System and method for synchronized phasor measurement
10/28/2008US7443208 Peak detector
10/28/2008US7443207 Differential output circuit with stable duty
10/28/2008US7443155 Voltage detecting apparatus
10/28/2008US7443154 Multi-sensor mapping omnidirectional sonde and line locator
10/28/2008US7441707 Probe signalling
10/23/2008WO2008125371A1 Contact system with vibration damper for current measuring instruments
10/23/2008US20080259513 Secondary battery protection device
10/23/2008US20080258711 Power gauge for accurate measurement of load current
10/23/2008US20080258710 Analysis of Liquid Chromatography Eluates
10/23/2008US20080258704 Method and apparatus for identifying broken pins in a test socket
10/23/2008US20080258667 Test module for motor control center subunit
10/23/2008DE202008011363U1 Sonde zur Messung der Stromdichte in einem Galvanikbad Probe for measuring the current density in a plating bath
10/23/2008DE102007017895A1 Verfahren und Vorrichtung zur Messung eines Pegels einer zeitlich veränderlichen elektrischen Messgröße Method and apparatus for measuring a level of a time-varying electrical measurement variable
10/22/2008EP1983348A1 Circuit for measuring, limiting and switching a load current
10/22/2008EP1982199A2 Method of instantaneously determining or estimating the frequency or amplitude of an input signal
10/22/2008EP1430315B1 High voltage transient damage assessment in high speed power systems
10/22/2008CN201138786Y Electric power supply having input current measuring interface
10/22/2008CN201138356Y Current measurement circuit
10/22/2008CN201138355Y Wide-region high-voltage circuit indicating equipment
10/22/2008CN101292164A A sampling module and a method of sampling one or more analogue characteristics of a power transmission system
10/22/2008CN101291059A Electricity quality analyzer oriented to digitalized electrical system and electricity quality analysis method
10/22/2008CN101291030A Electric power plug of electric vehicle charging device
10/22/2008CN101290528A Anti-theft device for electronic machine
10/22/2008CN101290346A Wrist strap type positioning apparatus
10/22/2008CN101290332A Voltage up-down detection circuit and method
10/22/2008CN101290331A Circuit for measuring, limiting and switching a load current
10/22/2008CN101290330A Circuit testing device
10/22/2008CN101290233A Hall effect circuit temperature compensation method and its circuit
10/22/2008CN100428053C Device and method for judging projector lamp residual service life of projector
10/22/2008CN100427915C Luminescent efficiency measuring method of organic electroluminescent device
10/21/2008US7440861 Concept of compensating for piezo influences on integrated circuitry
10/21/2008US7439775 Sense amplifier circuit and sense amplifier-based flip-flop having the same
10/21/2008US7439637 Semiconductor circuit and resistance value controlling method
10/16/2008WO2007111912A3 Multi-window signal processing electronics arhitecture for photon counting with multi-element sensors
10/16/2008US20080252337 Receiver signal strength indicator
10/16/2008US20080252289 Current and Magnetic Field Sensors, Control Method and Magnetic Core For Said Sensors
10/16/2008US20080252265 Detection circuit
10/16/2008US20080252246 Detection Method for an Electrical Polyphase Machine
10/16/2008DE102008009182A1 Verfahren und System zur Ermittlung eines Stroms in einer elektrischen Komponente A method and system for determining a current in an electrical component
10/16/2008DE102007017530A1 Kontaktierungssystem mit Vibrationsdämpfer für Strommessungsanordnungen Connection system with vibration damper for flow measurement devices
10/16/2008DE102005028572B4 Stromsensoranordung mit einem Magnetkern Stromsensoranordung with a magnetic core
10/16/2008DE10164359B4 Versorgungsspannungspegeldetektor Power supply voltage level detector
10/16/2008DE10135798B4 Verfahren und Vorrichtung zur Diagnose diskreter Endstufen über Digitaleingänge Method and apparatus for diagnosing discrete amplifiers with digital inputs
10/15/2008EP1980863A1 Device for contactlessly detecting flammable and explosive liquids
10/15/2008EP1979754A1 Arrangement and method for converting a digital signal with a large voltage swing into a digital signal with a voltage swing which is smaller than the latter
10/15/2008EP1979715A1 Adaptive method and system of monitoring signals for detecting anomalies
10/15/2008CN201134667Y Computer radiation canceller
10/15/2008CN201134661Y Microcomputer measuring, controlling and protecting equipment for electrical power system
10/15/2008CN201134618Y Bus temperature and current synthetic monitoring and optical fiber transmitting apparatus for high-low voltage distributing cabinet
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