Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
03/2005
03/31/2005DE10315372B4 Verfahren und Vorrichtung zum Bereitstellen eines Messsignals und Vorrichtung zur Erfassung einer elektromagnetischen Störung Method and apparatus for providing a measurement signal and means for detecting an electromagnetic disturbance
03/31/2005DE102004035195A1 Test method for laminated piezoelectric element involves applying direct voltage to element to set internal electrode layers to different potentials and monitoring detection current that flows when direct voltage applied
03/30/2005CN2689247Y Pointer positive and negative electroscopes
03/30/2005CN1601292A 自动传输线脉冲系统 Automatic Transmission Line Pulse System
03/30/2005CN1601286A Constant speed rotary flip-chip electric field gage suitable for thunderstom electricity and near ground atmosphere electric enviroment detection
03/29/2005US6873926 Methods and apparatus for testing a clock signal
03/29/2005US6873165 Near-field probe for use in scanning system
03/29/2005US6873164 Method of measuring electron energy distribution in plasma region and apparatus for measuring the same
03/24/2005WO2005026820A1 Pellicle
03/24/2005WO2005026752A1 Method and device for detecting defects of electromagnetic protection for electric harnesses
03/24/2005US20050061968 Mass spectrometer
03/23/2005CN1599291A Method for measuring transmission time-delay of telemechanical system by GPS
03/23/2005CN1598599A High-voltage split-phase peak contact electroscopy
03/23/2005CN1194228C Testing system for piezoelectric oscillator and testing method thereof
03/17/2005WO2004057351A8 Measuring method for deciding direction to a flickering source
03/17/2005US20050057312 Built-in jitter measurement circuit for voltage controlled oscillator and phase locked loop
03/16/2005EP1222474A4 Fault location device and method
03/16/2005CN2685889Y Electromagnetic wave trap
03/16/2005CN1595181A Method and apparatus for synchronous phase measurement by employing optical signals
03/16/2005CN1193239C Electromagnetic wave generating source probing device, method therefor and analyzing method therefor
03/10/2005WO2005022179A1 Non-invasive electric-field-detection device and method
03/10/2005WO2004011079A3 Method of treating disorders by altering ion flux across cell membranes with electric fields
03/10/2005US20050053777 Polymers with reflector film; electrooptics moderators; alternating layers of dielectric material; flat display; tear strength, toughness, softness, elasticity
03/09/2005CN2684203Y Inductive head of destatic ion fan monitoring instrument
03/09/2005CN1591244A A time-delay discriminator
03/03/2005WO2005019844A1 Anechoic chamber with direct observation of the electromagnetic behaviour of a tool to be studied
03/03/2005WO2005019843A1 Device for controlling the specific absorption rate of mass-produced radiant objects
03/03/2005WO2005019842A1 Device and method for determining at least one variable associated with the electromagnetic radiation of an object being tested
03/03/2005DE10325446B3 Verfahren zum Detektieren eines Fehlers bei einem Piezoaktor und Ansteuerschaltung für einen Piezoaktor, sowie Piezoaktorsystem A method for detecting a fault in a drive circuit for a piezoelectric actuator and piezoelectric actuator, and Piezoaktorsystem
03/03/2005CA2536022A1 Anechoic chamber with direct observation of the electromagnetic behaviour of a tool to be studied
03/03/2005CA2535933A1 Device for controlling the specific absorption rate of mass-produced radiant objects
03/03/2005CA2535927A1 Device and method for determining at least one variable associated with the electromagnetic radiation of an object being tested
03/02/2005EP1135691B1 Electrostatic force detector with cantilever and shield
02/2005
02/24/2005WO2005018041A2 Low noise, electric field sensor
02/24/2005US20050044463 Programmable jitter generator
02/24/2005US20050040867 High speed source synchronous signaling for interfacing VLSI CMOS circuits to transmission lines
02/23/2005EP1508813A1 Spectral jitter analysis allowing jitter modulation waveform analysis
02/23/2005CN1585226A Three-phase distributing balancing testing adjusting method for light system and light system distributing managing apparatus
02/22/2005US6859047 Anechoic test chamber and method of determining a loss characteristic of a material specimen
02/18/2005CA2477066A1 Mass spectrometer
02/17/2005WO2005015248A1 Digital data signal testing using arbitrary test signal
02/17/2005WO2005015247A1 Electric field sensor and adjustment method thereof
02/17/2005US20050038617 Process for identification of the direction of rotation of two periodic electrical signals at the same frequency
02/17/2005US20050036578 On-chip jitter measurement circuit
02/16/2005CN2679697Y Circuit for checkout of dynamic signal boundary
02/16/2005CN2679696Y Digital high voltage phasing gage
02/16/2005CN1581691A Integrated circuit, method and apparatus for fine tuning clock signals of an integrated circuit
02/15/2005US6856161 Sensor array and method for detecting the condition of a transistor in a sensor array
02/15/2005US6856131 Magnetic sensor, side-opened TEM cell, and apparatus using such magnetic sensor and side-opened TEM cell
02/10/2005WO2005012928A1 Method for detecting open-phase of power supply of three-phase converter
02/10/2005US20050033537 Time-delay discriminator
02/10/2005US20050033526 Signal analysis instrument, and a module for a signal analysis instrument
02/10/2005US20050032479 Signal classification methods for scanning receiver and other applications
02/10/2005US20050031029 Measuring apparatus and measuring method
02/10/2005US20050030074 Semiconductor device having PLL-circuit
02/10/2005US20050030043 Automatic transmission line pulse system
02/09/2005EP1504271A1 Spectral jitter analysis
02/09/2005CN1576863A Method for testing clock duty cycle and test circuit
02/09/2005CN1188944C Apparatus for tracking resonant frequency
02/08/2005US6854068 Wander generator having arbitrary TDEV mask characteristic setting apparatus
02/03/2005US20050027467 Eye diagram analyzer correctly samples low dv/dt voltages
02/03/2005US20050024260 E-field monitor for broadband pulsed
02/03/2005US20050024050 Micro fluxgate sensor and method of manufacturing the same
02/03/2005DE10332247A1 Narrow band transmission link ultrasonic variable delay measurement procedure for plastic manufacture uses cross correlation of transmitted and reference path signals
02/02/2005EP1436855A4 Field probe
02/02/2005CN2676214Y Light indication phase detector
02/02/2005CN2676213Y Voice prompt phase detector
02/02/2005CN2676212Y Digital display phase detector
02/02/2005CN1575420A Sensor for non-contacting electrostatic detector
02/02/2005CN1575419A Sensor for non-contacting electrostatic detector
02/02/2005CN1575412A Apparatus and a method for pulse detection and characterization
02/01/2005US6850851 Method and device for near-field measuring of non-controlled radiation
02/01/2005US6850051 Timing measurement device using a component-invariant vernier delay line
02/01/2005CA2195521C Antenna and feeder cable tester
01/2005
01/27/2005US20050017913 Apparatus for detecting electromagnetic radiation, in particular for radio astronomic applications
01/27/2005DE4324304B4 Verfahren zur Unterdrückung von Empfangsstörungen in einem FM-Empfänger A method of suppressing interference in an FM receiver
01/26/2005EP0829014B1 A measuring system and a method for detecting static electricity and/or change thereof in a measuring object and use thereof
01/26/2005CN2674463Y Phase sequence detecting control system
01/26/2005CN1570659A Determination of effect between circuit and spacial electric energy
01/26/2005CN1186891C Desired wave/interference power ratio measuring circuit and desired wave/interference power ratio measuring method
01/26/2005CN1186633C Test equipment and method for detecting negative ion amount emitted by fabric
01/25/2005US6847238 Output circuit and method for reducing simultaneous switching output skew
01/19/2005CN1566970A Radio-frequency testing arrangement and method for built-in antenna apparatus
01/19/2005CN1566969A High sensitive isotropic space electromagnetic wave leakage detecting probe
01/18/2005US6845351 Simulation device and method and program recording medium
01/18/2005US6844725 Electric and magnetic field detection device and electric and magnetic field measurement apparatus
01/18/2005US6844715 Synthetic RF detection system and method
01/13/2005WO2005003795A1 Testing radiation efficiency of an antenna
01/13/2005DE10317774A1 Picking up/ processing interference fields/beams involves preparing antenna signals via signal line diodes with opposed blocking directions, 2 signal lines after diode output connected via capacitor
01/12/2005EP1496410A1 A time-delay discriminator
01/12/2005EP1495524A1 Compensation method for a voltage unbalance
01/12/2005EP1495338A2 Method and device for picking-up and processing interference fields and interference beams
01/12/2005EP1051631B1 Method and apparatus for jitter analysis
01/12/2005CN2670953Y External testing post for antenna
01/12/2005CN1184485C Floating plate voltage monitor
01/11/2005US6842727 Device and method for analyzing EMI noise and semiconductor device
01/11/2005US6842614 Network analyzer for measuring the antenna return loss in a live cellular network
01/11/2005US6842027 Method and apparatus for detection and quantification of on-die voltage noise in microcircuits
01/11/2005US6842013 Method for making transmission measurements in a dual-chambered anechoic chamber using spatial averaging
01/06/2005US20050004772 Method for eliminating noise signals in radio signal receiving devices
1 ... 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 ... 120