Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
09/2000
09/05/2000US6114642 Switchgear assembly
08/2000
08/30/2000EP1031040A1 Device and method for converting a charge-flow into a frequency signal
08/29/2000US6111416 Electro-optical and magneto-optical sensing apparatus and method for characterizing free-space electromagnetic radiation
08/29/2000US6111399 Measurement system and antenna therefor
08/24/2000DE19904047A1 Device for measurement of electrical fields for compensating measurement inaccuracies which occur in case of 3D E field sensor; at least one measurement signal is corrected in such way that E field is covered in isotropic manner
08/23/2000EP1030184A1 Analyzer for a short and single radiation pulse
08/22/2000US6107962 Method for measuring the ellipse axes, wave direction, and wave propagation mode of an elliptically, circularly, or linearly polarized wave
08/22/2000US6107804 Apparatus for measuring the amount of electric charge induced in conductive part and method of measuring electric charge
08/22/2000US6107791 Non-disturbing electric field sensor using piezoelectric and converse piezoelectric resonances
08/22/2000CA2189155C Electromagnetic radiation measuring apparatus for high frequency analysis of radiation produced by a circuit board
08/15/2000US6104983 Method and apparatus for measuring waveform quality of CDMA signal
08/15/2000US6104357 Electrode with multiple carbon fibre contact surface
08/15/2000US6104215 Signal detector with improved noise immunity
08/15/2000US6104180 Transformers of voltage meters based on mechanical waves
08/10/2000WO2000046606A1 Jitter measuring device and method
08/09/2000EP1025446A1 Compact sensing apparatus having reduced cross section and methods of mounting same
08/09/2000CN2391251Y High voltage electrical safety alarmer
08/08/2000US6100697 Seismic activity predictor in proximity with the earth including a dielectric for receiving precursor seismic electromagnetic waveforms
08/01/2000US6097194 Method and apparatus for obtaining transfer characteristics of a device under test
07/2000
07/26/2000EP1022805A2 Radio wave absorbent-assembling member, radio wave absorbent and method for producing the same
07/20/2000DE19901750A1 Phase noise measurement unit uses feedback to cancel unit contribution to phase noise
07/18/2000US6092027 Apparatus for detecting and recording a conduction noise, a radiation electromagnetic field noise and a discharge noise
07/18/2000US6091126 Electromagnetic wave detector
07/12/2000EP1018031A1 Device for testing circuit boards
07/12/2000EP1007983A4 Analysis of noise in repetitive waveforms
07/11/2000US6088582 Controlled environment radio test apparatus and method
07/11/2000US6087865 Programmable frequency divider
07/11/2000CA2012913C Line probing mechanism
07/06/2000WO2000039596A1 Method and device for non-contact detection of external electric or magnetic fields
07/06/2000WO2000038959A1 Occupant detection system
07/06/2000WO2000038958A1 Occupant sensor
07/06/2000WO2000038957A1 Occupant detection system
07/06/2000WO2000038956A1 Occupant sensor
07/06/2000WO2000038955A1 Occupant detection system
07/05/2000EP1016882A2 Output circuit for a charge detector
07/04/2000US6084928 Radio environment analysis apparatus
07/04/2000US6084551 Electromagnetic probe for the detection of e-field and h-field radiation
07/04/2000US6083266 Simulation apparatus and simulation method using moment method
06/2000
06/28/2000EP1014575A1 Method and tuner for seeking and setting a resonance frequency
06/28/2000CN2385394Y Photoelectric source watch type alarm device
06/28/2000CN2385341Y Intelligent electric power harmonic analyser
06/28/2000CN1258007A 辐射和传导测量系统 Radiation and conduction measurement system
06/27/2000CA2049139C Electrostatic discharge detector and display
06/22/2000WO2000036428A1 Method and apparatus for determining electromagnetic field characteristics within a volume
06/15/2000WO2000034796A1 Scanning single electron transistor microscope for imaging ambient temperature objects
06/15/2000WO2000034795A1 Test chamber
06/15/2000WO2000034793A1 Voltage sensor
06/15/2000DE19840157A1 Device generating and detecting electrical fields at specific locations and times over a microsurface, stimulates and detects microbiological and chemical presences and activity in solution, using e.g. semiconductor field effect technology
06/14/2000EP1008856A1 Ultra wideband personal electromagnetic monitor
06/14/2000EP1007985A1 A method and a device for space-charge measurement in cables using a pulsed electroacoustic method
06/14/2000EP1007983A1 Analysis of noise in repetitive waveforms
06/14/2000CN2383079Y Low frequency electric field strong and weak detector
06/14/2000CN1053537C Electrical charge transfer apparatus
06/13/2000US6075498 Surface wave directional detection system and method
06/13/2000US6075495 Broadband TEM-horn antenna
06/06/2000US6072338 Method of and device for determining pulse width
05/2000
05/31/2000EP1004031A1 Electric arc monitoring systems
05/31/2000DE19950506A1 Determination of signal jitter for application in high-speed data transfer or communications, for use in data networks, e.g. gigabit Ethernet, involves applying test pattern to device under test
05/31/2000DE19924963A1 Measurement cell for testing the electromagnetic compatibility of metallized or electrically conducting plastic samples, comprises two screened housing sections where one contains a transmitting aerial and the other a receiving aerial.
05/25/2000WO2000029859A1 Method for on-site measurement and device for measuring voltage
05/25/2000DE19955564A1 Appliance for analyzing wide band code division multiple access communication systems includes a frequency conversion unit and a signal analyzer
05/24/2000EP1003044A2 Method and apparatus for using shuttered windows in a micro-electro-mechanical system
05/18/2000WO2000028635A1 Method and device for detecting the disconnection of a fuse
05/18/2000WO2000028525A1 System for measuring signal to noise ratio in a speech signal
05/18/2000WO2000028350A1 System for measuring and displaying three-dimensional characteristics of electromagnetic waves
05/18/2000WO2000028338A1 Electrostatic force detector with cantilever and shield
05/18/2000DE19954348A1 Electrical power measuring system for radio communications device, uses digital filter network for simultaneous frequency band limitation and signal mixing
05/18/2000CA2351195A1 System for measuring signal to noise ratio in a speech signal
05/18/2000CA2289882A1 Corona discharge imaging system for outdoor daylight use
05/17/2000CN1253433A Channel characteristics inference device
05/16/2000US6064190 Hand held electromagnetic field detector
05/11/2000DE19852525A1 Microwave detection electronic device for detecting harmful microwaves compares signal proportional to mean value of incident microwave radiation with threshold value for controlling display device
05/10/2000EP0999651A2 Channel characteristics estimation apparatus
05/10/2000EP0999455A2 Optical electric field sensor
05/10/2000EP0998679A1 Device for analysing a single pulse with variable step
05/09/2000US6061011 Nonflammable radio wave absorber
05/04/2000WO2000025142A1 System for measuring noise figure of a radio frequency device
05/04/2000DE19948039A1 Antennen-Array-Kalibrierung Antenna array calibration
05/03/2000EP0997976A1 Attenuator for attenuation of a radio link for a terminal adaptor with integrated antenna
05/03/2000EP0997738A2 Optical electric field sensor
05/03/2000CN1052074C Method and apparatus for controlling exposure to RF transmissions
05/03/2000CN1052072C 电场传感器 Electric field sensor
05/03/2000CN1052071C 电场传感器 Electric field sensor
05/03/2000CN1052070C 电场传感器 Electric field sensor
05/02/2000US6058487 Period measuring circuit with maximum frequency cutoff
05/02/2000US6057690 Automatic testing device for signal evaluation
04/2000
04/26/2000EP0995125A1 Microwave reflectometer and method, and microwave oven equipped therewith
04/25/2000US6054949 Method and apparatus for determining incident received power or energy or other technical measurement values of at least one signal in at least one predetermined direction of observation, and receiving equipment
04/25/2000US6054848 Method and apparatus for detecting electromagnetic waves
04/20/2000CA2255810A1 Apparatus for and method of testing electronic devices for electromagnetic interference
04/18/2000US6051967 Electric field measurement system
04/13/2000DE19846342A1 Measurement device for measuring intensity of weak electromagnetic radiation, plasma fields, ion fields, photon fields or electro smog; involves measuring induced voltage across capacitor charged by output from resonance antenna
04/12/2000EP0993071A2 Member for assembling radio wave absorber and method of producing radio wave absorber
04/12/2000CN1250235A Method and apparatus for antenna array calibration
04/12/2000CN1051416C A method and apparatus for determining signal usability
04/11/2000US6049358 Counter control circuit for controlling counter having a pulse period measuring function
04/11/2000US6049313 Microwave detector
04/06/2000DE19841308A1 Vorrichtung und Verfahren zum Umwandeln von Ladungsfluß in ein Frequenzsignal Apparatus and method for converting flow of charge into a frequency signal
04/05/2000EP0990162A1 Method for detecting the direction of rotation in three-phase networks, use of said method and pertaining digital overload relay
04/05/2000EP0990161A2 Two port handheld vector network analyzer with frequency monitor mode
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