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)
04/2003
04/02/2003EP1297347A1 Apparatus and method for the measurement and monitoring of electrical power generation and transmission
04/02/2003EP0861468B1 Automatic voltage detection in multiple voltage applications
04/02/2003CN1408066A Electrical quantity sensor
04/02/2003CN1407344A 电流变化率表 Current rate of change table
04/01/2003US6542010 Detector circuit for detecting voltage spikes
04/01/2003US6541982 Plasma density measuring method and apparatus, and plasma processing system using the same
04/01/2003US6541980 Multiplex voltage measurement apparatus
04/01/2003US6541954 Circuit apparatus for sensing line conditions in a three phase power line
04/01/2003US6541780 Particle beam current monitoring technique
03/2003
03/27/2003WO2003025598A2 Intergrated circuit having a voltage sensor
03/27/2003WO2003025596A2 Impulsive transient hardware simulation
03/27/2003WO2003025593A2 High voltage transient damage assessment in high speed power systems
03/27/2003WO2003025592A1 Voltage sensor, circuit arrangement provided with a voltage sensor, and method for configuring and operating a circuit arrangement of this type
03/27/2003WO2003025591A1 Device indicating voltage presence and electrical appliance comprising same
03/27/2003US20030058003 Comparator
03/27/2003US20030057989 Method of diagnosing discrete output stages via digital inputs
03/26/2003EP1295143A2 Cell voltage monitor for a fuel cell stack
03/26/2003CN1405568A Microwave automatic measuring device
03/26/2003CN1405567A High-speed, low-ripple peak-value detector
03/26/2003CN1104073C Charge and discharge circuit
03/26/2003CN1103924C Apparatus for digitizing AC signals of unknown or changing frequency
03/26/2003CN1103923C Electric current sensor
03/25/2003US6539318 Streaming architecture for waveform processing
03/25/2003US6538482 Voltage detection circuit, power-on/off reset circuit, and semiconductor device
03/25/2003US6538478 Noise immune peak detector
03/25/2003US6538422 Voltage sensor bushing assembly with integral capacitance screen
03/25/2003US6537469 Discharge counter and a nonlinear resistance material for a discharge counter
03/20/2003WO2003023424A1 Current density vector estimating apparatus and electric conductivity estimating apparatus
03/20/2003WO2003023416A1 A minimum detector
03/20/2003WO2002041009A3 Oscilloscope panel capture and implementation
03/20/2003US20030056124 Digital-based mechanism for determining voltage
03/20/2003US20030052693 Analyzer sensor
03/20/2003US20030052688 Battery voltage detection device
03/20/2003US20030052664 Structure and the method for measuring the spectral content of an electric field as a function of position inside a plasma
03/19/2003EP1293785A1 Voltage comparator
03/19/2003EP1292835A1 Method and circuit for measuring a voltage or a temperature and for generating a voltage with any predeterminable temperature dependence
03/19/2003EP1082806B1 Method and circuit for power detection in electronically switched electric motors
03/19/2003CN1404073A Antijamming signal transferring cable and high-speed high-amplitude pulse current sensor
03/18/2003US6535104 Multi-axis potentiometer
03/18/2003US6535027 Low power peak detector
03/18/2003US6534967 Dual totem current sensor for measuring load current in an H-bridge power stage
03/13/2003US20030048649 Automatic polarity sensing power and signal interface
03/13/2003US20030048091 Cell voltage detector for fuel cell
03/12/2003WO2002023658A1 Method for operating a fuel cell and a fuel cell arrangement
03/12/2003EP1292045A2 Analyzer sensor
03/12/2003EP1145020B1 Method and arrangement for optically detecting an electric current using light signals that have different wavelengths
03/12/2003EP1086380A4 System for concurrent digital measurement of peak voltage and rms voltage in high voltage system
03/12/2003CA2422209A1 Method for operating a fuel cell and a fuel cell arrangement
03/11/2003US6531898 Device using a detection circuit to determine whether an output current thereof is source-induced or load-induced, and method therefor
03/11/2003US6531884 Diagnostics for piezoelectric sensor
03/11/2003US6531878 Direct current voltage detection stick
03/06/2003WO2003019994A1 Circuit arrangement
03/06/2003WO2003019205A1 Diagnostics for piezoelectric sensor
03/06/2003WO2002097940A3 Overcurrent detection and protection apparatus for switching element
03/06/2003WO2002041102A3 Processing web editor for data processing in a digital oscilloscope or similar instrument
03/06/2003US20030042899 Method and instrument for measuring a magnetic field, a method for measuring a current waveform, and method for measuring an electric field
03/06/2003US20030042884 Opto-electric device for measuring the root-mean-square value of an alternating current voltage
03/05/2003EP1042679B1 Electronic circuit for monitoring voltage variation
03/05/2003CN2539185Y Wireless high-voltage elecroscope
03/05/2003CN1102739C Amplitude detecting device
03/05/2003CN1102738C Dc and ac three-purpose current comparator
03/04/2003US6529923 Method for improving the accuracy in the determination of a waveform center of a waveform signal
03/04/2003US6528960 Cost effective measurement of high currents
02/2003
02/27/2003WO2003017090A2 Network-based system for configuring a measurement system using programs generated based on a user specification
02/27/2003WO2003016926A1 Method and apparatus nbh reducing skew in a real-time centroid calculation
02/27/2003WO2002041103A3 Streaming architecture for waveform processing
02/27/2003US20030041079 Method for reducing skew in a real-time centroid calculation
02/27/2003US20030039131 Circuit arrangement
02/27/2003US20030038644 Diagnostics for piezoelectric sensor
02/27/2003CA2456855A1 Method and apparatus for reducing skew in a real-time centroid calculation
02/26/2003EP1286143A2 Comparing and amplifying detector circuit
02/26/2003EP1285279A2 A measuring circuit
02/26/2003EP1141732B1 Utility metering system having waveform capture for power quality monitoring
02/25/2003US6526359 Apparatus and method for measuring small increases in machine tool drive motor power
02/25/2003US6525601 Input system for variable gain amplifier having transconductance stages with feedforward paths diverted to AC ground
02/25/2003US6525519 Amplitude detecting circuit
02/20/2003WO2003014747A1 Current derivative sensor
02/20/2003US20030036876 Network-based system for configuring a measurement system using configuration information generated based on a user specification
02/20/2003US20030034789 Probe holder for testing of a test device
02/20/2003US20030034770 Current derivative sensor
02/19/2003CN1397963A Current measuring device and method using current mutual inductor with high transforming ratio
02/19/2003CN1101938C Continuous scan recording method capable of monitoring plurality of batteries simultaneously
02/18/2003US6522900 Method for displaying battery voltage in TDMA radio terminal
02/18/2003US6522591 Semiconductor memory circuit
02/18/2003US6522123 Apparatus for measuring current flowing in a conductor
02/13/2003US20030030956 Current detection and overcurrent protection for transistors in pulse-width modulation amplifier
02/13/2003US20030030478 RMS-DC converter having gain stages with variable weighting coefficients
02/13/2003US20030030468 Device using a detection circuit to determine whether an output current thereof is source-induced or load-induced, and method therefor
02/12/2003EP1283594A1 Motor controller
02/12/2003EP1129359B1 Apparatus and method for remote current sensing
02/12/2003CN2535808Y Micro power-consumption acousto-optic dispay votage test pen
02/12/2003CN2535807Y Weak-signal testing circuit based on switch capacitor integrator
02/12/2003CN1101549C Phase difference type magnetic modulating DC current measuring circuit and detecting method thereof
02/11/2003US6518729 Secondary battery protection circuit capable of reducing time for functional test
02/06/2003US20030028338 Sampler and method of measuring a waveform of a current with jitters reduced
02/06/2003US20030025564 Multi-frequency synthesizer apparatus and method
02/06/2003US20030025514 Multiple range current measurement system with low power dissipation, fast settling time, and low common mode voltage error
02/05/2003EP1281976A1 Electrometer for measuring fast voltage changes
02/05/2003CN2534588Y Antitheft alarmer for 10 KV and below 10 KV electric line
02/05/2003CN2534587Y Antiexplosive electric current monitoring instrument
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