Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
03/2005
03/03/2005US20050046438 Sensing services and sensing circuits
03/03/2005US20050046408 Hand held voltage detection probe
03/03/2005DE202004018707U1 Automatic safety test system for electronic products has bus interfaces to connect test instruments through server unit to product test points
03/03/2005DE10336604A1 Verfahren und Schaltungsanordnung zur Überwachung der Funktionsweise eines oder mehrerer Verbraucherstromkreise, insbesondere eines Hausgeräts Method and circuit for monitoring the functioning of one or more load circuits, in particular a household appliance
03/03/2005DE10333089A1 Current processor unit has housing containing conductor and signal areas with chip running temperature compensation program connected through bond wires to current and signal pins
03/02/2005EP1509993A1 Method for detecting commutation impulses of a ventilated motor and circuit arrangement for carrying out said method
03/02/2005CN2682424Y Device for displaying direct voltage of test point using icon
03/02/2005CN1589408A Binary voltage indicator
03/02/2005CN1588108A Load current detection method for circuit breaker
03/02/2005CN1588097A Intelligent pulse current multiple parameter digital measurer based on non-linear resistance sheet
03/02/2005CN1588096A Device and method for electronic shearing speckle interference measuring current
03/01/2005US6861890 Squaring cells and multipliers using summed exponentials
03/01/2005US6861834 System and method for measuring the power consumed by a circuit on a printed circuit board
02/2005
02/24/2005WO2005017851A1 Process device with loop override
02/24/2005WO2005017669A2 Sampling circuit apparatus and method
02/24/2005WO2005017544A1 Process device with quiescent current diagnostics
02/24/2005WO2005017541A1 Method and circuit arrangement for monitoring the mode of operation of one or more load circuits, especially of a domestic appliance
02/24/2005WO2005017540A1 Position detecting device
02/24/2005US20050043909 Method for measuring integrated circuit processor power demand and associated system
02/24/2005US20050040901 System and method for measuring current
02/24/2005US20050040900 Method and system for calibration of a voltage controlled oscillator (VCO)
02/24/2005US20050040829 Battery power detecting method and device
02/24/2005US20050040808 Microelectricalmechanical system with improved beam suspension
02/23/2005CN2681143Y Multifunctional digital current measurement clamp meter
02/23/2005CN1584607A Overvoltage on-line sampler for 6-35 KV electric power system
02/22/2005US6859040 Voltage detecting circuit
02/17/2005US20050035777 Probe holder for testing of a test device
02/17/2005US20050035770 Radio frequency langmuir probe
02/16/2005CN2679696Y Digital high voltage phasing gage
02/16/2005CN2679694Y Sampling strip in industrial frequency voltage sampler
02/16/2005CN1581306A Sawtooth wave position element value detecting circuit
02/16/2005CN1580796A DC. detection circuit and DC. earthing current detection circuit
02/16/2005CN1580790A Analogue signal measuring device and method
02/16/2005CN1580789A Photoelectric direct current sensor
02/16/2005CN1580788A 直流电流传感器 A DC current sensor
02/15/2005US6856515 Combination current sensor and relay
02/15/2005US6856149 Current detecting circuit AC/DC flyback switching power supply
02/15/2005US6856117 Detection circuit having an adaptive threshold
02/10/2005WO2005012928A1 Method for detecting open-phase of power supply of three-phase converter
02/10/2005WO2003041212A3 Non-linear transmission line using varactors and non-parallel waveguide
02/10/2005US20050030186 Process device with loop override
02/10/2005US20050030185 Process device with quiescent current diagnostics
02/10/2005US20050030005 Direct current detection circuit
02/10/2005DE102004034446A1 Elektrische Stromdetektierungseinrichtung Electrical Stromdetektierungseinrichtung
02/09/2005EP1505398A1 Direct current detection circuit
02/09/2005CN2677942Y High-vottage AC. current signal sensor capable of counting and measuring
02/09/2005CN1578050A Charging apparatus and charging current detecting circuit thereof
02/09/2005CN1576859A Power supply control apparatus including highly-reliable overcurrent detecting circuit
02/09/2005CN1576857A 电流传感器 Current Sensors
02/09/2005CN1188758C Power supply device, portable electronics device, timing device and their control method thereof
02/09/2005CN1188706C Electric current testing method for high-precision high-isolating voltage
02/08/2005US6853180 Measured value acquisition and processing unit for small measuring signals
02/03/2005US20050027467 Eye diagram analyzer correctly samples low dv/dt voltages
02/03/2005US20050024806 Current detection resistor, mounting structure thereof and method of measuring effective inductance
02/03/2005US20050024038 Sampling circuit apparatus and method
02/03/2005DE10313808B3 Phase angle correction method for current transducer has successive digital momentary values compared to provide difference values multiplied with phase correction factor for providing correction values
02/02/2005EP1503490A1 Current sensing circuit
02/02/2005EP1502121A1 Test apparatus
02/02/2005EP1502120A1 Measurement system graphical user interface for easily configuring measurement applications
02/02/2005EP1218763A4 Electron density measurement and control system using plasma-induced changes in the frequency of a microwave oscillator
02/02/2005CN2676215Y High power converter testing device
02/02/2005CN2676209Y Current type magnetism-sensitive sensing element
02/02/2005CN1574615A Feedback control system and method
02/02/2005CN1574560A Motor driving apparatus
02/02/2005CN1573339A High tension current detecting method and device
02/02/2005CN1187620C Method for time-marking of waveshape edge of input signals
02/01/2005US6850856 I/O receiver thermal correction scheme
02/01/2005US6850082 Probe holder for testing of a test device
02/01/2005US6849142 Method of making multi-layer female component for refastenable fastening device
02/01/2005US6848139 Combination hand tool and electrical testing device
01/2005
01/27/2005WO2005008873A1 Current detector circuit
01/27/2005US20050017770 Chopper comparator circuit
01/27/2005US20050017760 Current sense shunt resistor circuit
01/27/2005US20050017706 Method and apparatus for low cost, current and voltage sense circuits with voltage drop
01/27/2005DE102004028308A1 Vorrichtung zur Erfassung eines Motorantriebstroms A device for detecting a motor driving current
01/26/2005CN2674460Y Equipotential flash type high-voltage charge display device
01/26/2005CN1570656A Magnetic tape type lightning current stepness recording and measuring apparatus
01/26/2005CN1570655A Double detection type current sensor
01/26/2005CN1570654A Magnetic core sheath free coil magnetic core pack for current sensor
01/26/2005CN1186640C Electric arc monitoring systems
01/26/2005CN1186639C Weighted door integrated group weak signal related detection circuit and application
01/25/2005US6847222 Apparatus for measuring voltage fluctuation waveform in semiconductor integrated circuit, and semiconductor integrated circuit having function for measuring voltage fluctuation waveform
01/25/2005US6847197 System and method for detection of zero current condition
01/20/2005WO2005005995A2 System and method for acquiring voltages and measuring voltage into an electrical service using a non-active current transformer
01/20/2005US20050013079 Power supply control apparatus including highly-reliable overcurrent detecting circuit
01/20/2005US20050012511 Analog signal measuring device and method
01/20/2005US20050012497 Device for measuring a chopped current
01/20/2005US20050012496 Electric current detection apparatus
01/20/2005DE10328870A1 Widerstandsanordnung, Herstellungsverfahren und Messschaltung Resistor assembly, manufacturing processes and measuring circuit
01/20/2005CA2522373A1 System and method for acquiring voltages and measuring voltage into an electrical service using a non-active current transformer
01/19/2005CN1568569A Voltage detection circuit and internal voltage generation circuit using same
01/19/2005CN1566967A Voltage detection apparatus
01/19/2005CN1566966A A measuring apparatus and measuring method
01/19/2005CN1566965A Novel method for AC sampling calculation and true effective value sampling integrated circuit based on the same
01/18/2005US6845351 Simulation device and method and program recording medium
01/18/2005US6844819 Voltage sensing hand tool
01/18/2005US6844734 Current detection circuit for A/F sensor
01/18/2005US6844712 Multi-test circuit breaker locator having a transmitter and a receiver
01/18/2005US6844699 Current detection device
01/13/2005US20050007126 Circuit for measuring on-chip power supply integrity