Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
12/2004
12/02/2004US20040243895 Digital envelope detector
12/02/2004US20040243329 Frequency measuring device
12/02/2004US20040243325 Method and arrangement for securing sensors in an electricity meter
12/02/2004US20040240663 Current sense circuit in a line powered network element
12/02/2004US20040240136 Method for checking electrical safety of a household appliance and corresponding household appliance
12/02/2004US20040239697 Processing web editor for data processing in a digital oscilloscope or similar instrument
12/02/2004US20040239398 Squaring cells and multipliers using summed exponentials
12/02/2004US20040239335 Current measurement in electrical machines
12/02/2004US20040239306 Voltage presence indication device and electrical apparatus comprising such an indicator
12/02/2004DE10135798A1 Verfahren zur Diagnose diskreter Endstufen über Digitaleingänge Method for the diagnosis of discrete amplifiers with digital inputs
12/01/2004EP1482316A2 Current measurement in electrical machines
12/01/2004EP1481254A1 Dsp assisted peak capture circuit and method
12/01/2004EP1119748A4 Interferometer coupler using multiple input ports for improved stabiblity
12/01/2004CN2660760Y Overcurrent protector having acoustooptic warning and auto restoring functions
12/01/2004CN2660544Y Independent overcurrent monitoring and protecting circuit
12/01/2004CN2660543Y One-rowed 3-phase 6-route indication modular
12/01/2004CN1551986A Minimum detector arrangement
12/01/2004CN1178114C Electric-wave-shape digital sampling method and apparatus thereof
11/2004
11/30/2004US6825653 Load compensating power supply having minimally invasive device current analyzer
11/30/2004US6825651 Test method for characterizing currents associated with powered components in an electronic system
11/30/2004US6825649 Non-contact voltage measurement method and device, and detection probe
11/25/2004WO2004102211A1 Potentiostatic circuit arrangement on a biosensor for digitisation of the measured current
11/25/2004WO2004093317A3 System and method for determining voltage levels
11/25/2004US20040233064 Voltage-detecting method and related circuits
11/25/2004DE10319157A1 Monitoring method for the burn-in voltage during an integrated circuit burn-in process, whereby a voltage representative of the internal burn-in voltage is compared with a reference value and a corresponding signal output
11/24/2004EP1478932A1 Method and circuit arrangement for determining the average current consumption of a battery-operated apparatus
11/24/2004CN2658971Y Movable safety socket
11/24/2004CN1549929A Diagnostics for piezoelectric sensor
11/24/2004CN1548975A Phase current detecting method for motor
11/24/2004CN1548965A AC voltage under-voltage detecting circuit
11/24/2004CN1548964A Three-phase three line transmission and distribution line zero sequence current detecting apparatus
11/24/2004CN1177332C Antijamming signal transferring cable and high-speed high-amplitude pulse current sensor
11/24/2004CN1177228C Digital current differential system
11/23/2004US6822576 Microprocessor controlled fault detector with circuit overload condition detection
11/23/2004US6822493 Voltage detection circuit, power-on/off reset circuit, and semiconductor device
11/23/2004US6822435 Comparator circuit for differential swing comparison and common-mode voltage comparison
11/23/2004US6822247 Ion irradiation system
11/18/2004WO2004099630A2 Combination hand tool and electrical testing device
11/18/2004US20040228054 Fault detecting circuit
11/18/2004US20040227539 Current sensing for power MOSFET operable in linear and saturated regions
11/18/2004DE10319602A1 Temperature compensation method for application to a voltage source or sensor output voltage that has a known temperature-dependent voltage drift, wherein the outputs of two voltage sources are used to calculate a temperature
11/18/2004DE10297335T5 Spannungserfassungsschaltung und dieselbe benutzende Erzeugungsschaltung für interne Spannung Voltage detection circuit and the same-use internal voltage generating circuit for
11/17/2004EP1476762A1 Signal processing circuit for an optical sensor
11/17/2004EP1252526B1 Current detector and current measuring apparatus including such detector with temperature compensation
11/17/2004CN2657010Y Direct-inserting three-phase voltage display module
11/17/2004CN2657009Y Two-arrangement three-phase six-way display module
11/17/2004CN1547873A Circuit settings
11/17/2004CN1547035A Current sensor
11/17/2004CN1547034A Current sensor
11/16/2004US6820017 Method for determining the amplitude and phase angle of a measuring signal corresponding to a current or voltage of an electrical power supply network
11/16/2004US6819144 Latched sense amplifier with full range differential input voltage
11/11/2004WO2004097436A2 Measurement circuit with improved accuracy
11/11/2004WO2004097434A1 I/f conversion device and photo-detection device
11/11/2004WO2004034440A3 Current integrating sense amplifier for memory modules in rfid
11/11/2004US20040225439 Method and apparatus for real time clock (rtc) brownout detection
11/11/2004US20040223349 System and method for reducing transfer function ripple in a logarithmic RMS-to-DC converter
11/11/2004US20040222990 Processing web editor for data processing in a digital oscilloscope or similar instrument
11/11/2004US20040222827 Detector of range of supply voltage in an integrated circuit
11/11/2004US20040222823 Overvoltage detector
11/11/2004US20040222810 Integrated test circuit in an integrated circuit
11/11/2004US20040222799 DC measurement method and system using sigma-delta modulation pattern
11/11/2004US20040222781 Apparatus for accessing telecommunications networks
11/11/2004US20040222778 Method for the precise measurement of dependency on amplitude and phase of a plurality of high frequency signals and a device for carrying out said method
11/11/2004DE4446535B4 Schaltungsanordnung zur Amplitudenmessung Circuit arrangement for amplitude measurement
11/11/2004DE29924677U1 Multi-function tool has a handle with a forward assembly in which sensors or tools can be fitted including sensors for measurement and testing purposes to reduce the amount of instruments needing to be carried
11/11/2004DE102004014728A1 Unit for sensing physical quantity Unit for sensing physical quantity
11/10/2004EP1475641A2 Method and device for precise measurement of dependency on amplitude and phase of plurality of high frequency signals
11/10/2004CN2655248Y AC high-voltage indicator
11/10/2004CN1175439C Current measuring device and method using current mutual inductor with high transforming ratio
11/09/2004USRE38647 Sense amplifier circuit
11/09/2004US6815117 Method for determining a current density distribution in a fuel cell stack
11/04/2004WO2004053944A3 Fast localization of electrical failures on an integrated circuit system and method
11/04/2004US20040217809 Measurement circuit with improved accuracy
11/04/2004US20040216239 Combination hand tool and electrical testing device
11/04/2004DE202004012798U1 Contact monitoring circuit for high-voltage test systems compares end of shield or auxiliary wire with reference potential via semiconducting switch, displaying signal if potential difference exists
11/04/2004DE202004010253U1 Test arrangement on current connection has base plate of insulated material with contour corresponding to current connection, adhesive surface with poles, contact holes for poles and light body
11/04/2004DE10356740A1 Verfahren und Vorrichtung zum Bereitstellen von Leistung und zum Lenken von analogen Mess- und Kommunikationssignalen über ein einzelnes Drähtepaar Method and apparatus for providing power and for routing analog measurement and communication signals over a single wire pair
11/03/2004EP1472547A2 Peak-to-peak signal detector
11/03/2004EP1256004B1 Voltage sensor
11/03/2004EP0934627B1 Circuit arrangement for evaluating a binary signal defined by current threshold values
11/03/2004CN2653518Y Electric cut-off alarm detector
11/03/2004CN1542456A Current measuring method
11/03/2004CN1174254C Measuring device
11/03/2004CN1174253C Circuit and method for detecting voltage state of power supply
11/03/2004CN1174252C Multiplex transmission voltage measuring equipment
11/02/2004US6813209 Current integrating sense amplifier for memory modules in RFID
11/02/2004US6812752 Embedded voltage level detector
11/02/2004US6812689 Method and device for offset-voltage free voltage measurement and adjustment of a reference voltage source of an integrated semiconductor circuit
11/02/2004US6812686 Method of forming an RF detector and structure therefor
11/02/2004US6812666 Current sense IC with circuitry for eliminating ripple current error from motor current measurement
11/02/2004CA2057941C Integrated circuit with analog and digital portions and including thermal modelling
10/2004
10/28/2004WO2004093317A2 System and method for determining voltage levels
10/28/2004WO2004008159A3 Conductor tracing system
10/28/2004US20040214536 High-speed signal power detection circuit
10/28/2004US20040212401 High frequency signal peak detector
10/28/2004US20040212387 Apparatus for measuring voltage fluctuation waveform in semiconductor integrated circuit, and semiconductor integrated circuit having function for measuring voltage fluctuation waveform
10/28/2004US20040212369 Method and device for detecting a signal
10/28/2004DE202004010521U1 High voltage installation three phase voltage display can be permanently coupled to capacitive interface without connection to fixed coupler
10/28/2004DE10297235T5 Universelles Energieversorgungssystem Universal power supply system
10/27/2004EP1471359A1 Measured value output device, measured value monitor, current value output device, and current monitor