Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
08/1997
08/28/1997CA2198660A1 Apparatus for triggering alarms and waveform capture in an electronic power system
08/21/1997WO1997023069A3 Process and device for detecting the transmission properties of mobile wireless telecommunication devices
08/19/1997US5659252 Apparatus and method for detecting arcing in a CRT
08/19/1997US5658673 Microwave-sensitive article
08/13/1997EP0789462A2 Method and apparatus for processing time domain cross-talk information
08/13/1997EP0789247A2 Method and apparatus for detection and acquisition of automotive fuel injector voltage signal pulse width
08/13/1997CN2259632Y Three-phase electric machine phase sequence test instrument
08/12/1997US5657244 Distinguishing power line arcing from RF emissions
08/12/1997US5657023 Self-phase up of array antennas with non-uniform element mutual coupling and arbitrary lattice orientation
08/12/1997US5656932 Non-contact type wave signal observation apparatus
08/06/1997EP0787995A2 Waveform analyzer
07/1997
07/31/1997WO1997027400A1 Measuring circuit for sensing ionisation within a cylinder of a combustion engine
07/31/1997DE19628918C1 Arrangement for detecting HF noise signal on board aircraft esp. passenger aircraft
07/30/1997EP0786094A1 System and method for making electromagnetic measurements using a transverse electromagnetic cell
07/24/1997WO1997026545A1 Tem waveguide
07/23/1997EP0785619A2 Method for computer assisted iterative determination of the transient response of a quartz resonator
07/22/1997US5650935 Apparatus for calculating intensity of an electromagnetic field
07/22/1997US5650731 Photovoltaic oxide charge measurement probe technique
07/16/1997EP0784206A2 Means for measuring the electric field
07/16/1997EP0783673A1 Variable frequency microwave tropopause sensor system and method
07/15/1997US5647379 Correlator based electromagnetic interference responsive control system useful in medical devices
07/10/1997WO1997024624A1 Antenna adapter
07/03/1997WO1997023738A1 Charge transfer capacitance sensor
07/03/1997DE19652890A1 Delay time measuring method for generating random pulse sequence
07/02/1997EP0782003A2 Means for EMC-testing electrical appliances
07/02/1997CN1153307A Under-voltage timing method and under-voltage timing device thereby
07/01/1997US5644316 Active phased array adjustment using transmit amplitude adjustment range measurements
07/01/1997US5644220 Process and apparatus for measuring charge quantity flowing in a vacuum
06/1997
06/26/1997WO1997023069A2 Process and device for detecting the transmission properties of mobile wireless telecommunication devices
06/25/1997EP0780693A2 Process and means for producing and receiving electromagnet waves for testing purposes
06/25/1997EP0780690A2 Field sensor
06/24/1997US5642039 Handheld vector network analyzer
06/24/1997US5642038 Method of detecting partial discharge using frequency spectrum analyzer
06/18/1997CN2256537Y Micro anti-high voltage alarm
06/17/1997US5640697 Wideband multiple conversion receiver system with means for avoiding receiver spurs by combined switching of multiple local oscillator frequencies
06/12/1997DE19649215A1 Antenne Antenna
06/11/1997EP0778533A2 Electromagnetic fed intensity calculation apparatus and method
06/10/1997US5637994 Waveform measurement
06/05/1997DE19648750A1 Waveform identity discriminating circuit for identifying same programmes in FM RDS radio receiver
06/03/1997US5635831 Optical voltage and electric field sensor based on the pockels effect
05/1997
05/29/1997WO1997019527A1 Submillimeter indirect heterodyne receiver and mixer element
05/29/1997CA2237661A1 Submillimeter indirect heterodyne receiver and mixer element
05/28/1997EP0775295A1 A piezoelectric crystal microbalance device
05/28/1997EP0632900A4 Method and means for determining directional characteristics of large sensor or radiator arrays.
05/28/1997EP0543835B1 Method and device for supervising the condition of a receiving antenna
05/28/1997DE19647090A1 Measuring power loss through transmission signal leaking to adjacent channel
05/27/1997US5633700 Actuator for actuating a surface contacting probe of a contacting electrostatic voltmeter
05/27/1997US5633582 Combined signal level meter and leakage detector
05/21/1997CN1150499A Antenna array calibration
05/20/1997US5631661 Geometrically optimized anechoic chamber
05/15/1997WO1997017617A1 Method and apparatus for high-speed scanning of electromagnetic emission levels
05/15/1997DE19645953A1 Measuring correlation function between first and second observation signals
05/14/1997EP0773447A2 Time counting circuit, pulse converting circuit and FM demodulating circuit
05/14/1997EP0772947A2 Antenna and feeder cable tester
05/14/1997CN1149794A Equipment for measuring signal transmission time of a digit transmission device
05/13/1997US5629647 Audio amplifier switching noise measuring method and device
05/07/1997EP0772053A2 Electromagnetic radiation measuring apparatus
05/07/1997EP0772047A1 Electric field measuring device
05/07/1997EP0771422A1 Process for measuring phase jitter of a data signal
05/07/1997CN2253833Y Dynamic phase sequence display meter
05/06/1997US5627521 Personal microwave and radio frequency detector
05/02/1997EP0770879A2 Measuring device for amount of charge of developer
04/1997
04/30/1997CN2253481Y Multi-functional local discharge detecting analyzer
04/29/1997US5625284 Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field
04/23/1997EP0597041B1 Pulse time of arrival detection apparatus for precision distance measuring equipment applications
04/22/1997US5623429 Techniques for expeditiously predicting electromagnetic wave propagation
04/16/1997EP0767916A1 High-impedance electro-optic transducer
04/15/1997US5621649 Method for analyzing electromagnetic field
04/10/1997WO1997013128A1 Active pyrometer for self-calibrated furnace temperature measurements
04/10/1997WO1997005508A3 Lightning locating system
04/10/1997DE19549246C1 Electromagnetic wave generation and reception method for immunity testing
04/10/1997DE19536948A1 Zero levelling of battery driven field amplifier meter
04/03/1997WO1997012419A1 Electrode
04/03/1997WO1997012253A1 Antenna pattern measurement method and device
04/03/1997WO1997012252A1 Broadband tem-horn antenna
04/03/1997WO1997012251A1 Dual polarization electromagnetic field simulator
04/03/1997DE19541188C1 Classification method for type of modulation of complex data signal
04/01/1997US5617329 Mains phase determination
03/1997
03/27/1997DE19535251A1 Measurement system with measuring head contg. movably located positionable probe
03/19/1997EP0763266A1 Antenna array calibration
03/13/1997WO1997009627A1 Electric field measurement system
03/13/1997DE19635890A1 Spectral analysis for measurement e.g. of carrier-to-noise ratio
03/13/1997DE19601348C1 TEM waveguide for electromagnetic interference characteristics testing
03/13/1997DE19533113A1 Vorrichtung zum Messen der Signallaufzeit einer digitalen Übertragungseinrichtung Apparatus for measuring the signal propagation delay of a digital transmission facility
03/12/1997EP0762667A2 Measuring device of the propagation time in a digital transmission system
03/12/1997EP0762589A1 Device for recording strokes of lightning
03/12/1997EP0762540A1 EMC-measurement room
03/12/1997EP0760954A1 Phase noise detector
03/11/1997US5610519 Device and method for measuring specific absorption rate of electromagnetic waves in models of human bodies
03/11/1997US5610510 High-temperature superconducting thin film nonbolometric microwave detection system and method
03/04/1997US5608331 Noise measurement test system
03/01/1997CA2165362A1 Method of detecting partial discharge using frequency spectrum analyzer
02/1997
02/27/1997WO1997007478A1 Apparatus for detecting presence of piezoelectric material______
02/26/1997EP0759557A2 Electro-optic probing apparatus using trigger circuit
02/26/1997CN1034117C Safety devices for elevator
02/25/1997US5606328 RF isolation inspection tool
02/18/1997US5604751 Time linearity measurement using a frequency locked, dual sequencer automatic test system
02/13/1997WO1997005508A2 Lightning locating system
02/13/1997WO1997005460A1 Variable frequency microwave tropopause sensor system and method
02/12/1997EP0758090A2 An electromagnetic wave-to-optical signal converting and modulating device and a communication system using the same