Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
02/1993
02/18/1993WO1993003395A1 Method for detecting transient signals, particularly in acoustic signals
02/18/1993WO1993003388A1 Compact antenna test range
02/18/1993WO1993003387A1 Broadband antennas and electromagnetic field simulators
02/18/1993CA2114632A1 Method for detecting transient signals, particularly in acoustic signals
02/18/1993CA2113910A1 Pulse time of arrival detection apparatus for precision distance measuring equipment applications
02/17/1993EP0527662A1 Apparatus for measuring vector characteristics of a frequency-shifted, amplitude modulated electric signal
02/17/1993EP0527617A2 Broad-band microwave power sensor using diodes above their resonant frequency
02/16/1993US5187719 Method and apparatus for measuring modulation accuracy
02/16/1993US5187486 Method of and apparatus for automatically calibrating a phased-array antenna
02/16/1993US5187442 Method and apparatus for charge distribution analysis
02/09/1993US5185684 Frequency selective arc detection
02/04/1993DE4121411C1 Measuring resonance frequencies of piezoelectric components - generating pulse marking time point of resonance on basis characteristic signal change using HF wobbulator controlled by LF probe signals
02/03/1993EP0526228A1 Apparatus for detecting electrostatic force in solution
01/1993
01/26/1993US5182596 Device for measuring surface potentials at photosensitive body and electrostatic recording apparatus using said device
01/21/1993WO1993001503A1 Method and device for extending the dynamic range in measurements carried out with a directional coupler
01/19/1993US5181040 Method of measuring the null angle of a monopulse antenna and apparatus therefor
01/19/1993US5180985 Multipactor effect measurement device using phase noise
01/14/1993DE4122189A1 Measuring noise figure of electronic measurement objects, e.g. complex HF and microwave circuits - calibrating noise meter, e.g. spectrum or network analyser with integral pulling generator, to determine intrinsic noise and eliminate need for noise source
01/13/1993EP0522614A1 Method of determining an electrical spectrum
01/12/1993US5179344 Phase noise measurements utilizing a frequency down conversion/multiplier, direct spectrum measurement technique
01/05/1993US5177531 Electrostatic recorder and electrostatic latent image measuring instrument
12/1992
12/30/1992EP0507782A4 Electric arc and radio frequency spectrum detection
12/22/1992CA1311825C Electromagnetic anechoic chamber with an inner electromagnetic wave reflection surface and an electromagnetic wave absorption small ball disposed in the chamber
12/17/1992DE4119108A1 Peak value measurement, esp. of single pulses in HV measurement - using digital regulation to remove offset drift and other circuit-related error
12/16/1992EP0518516A2 Antenna for sensing stray RF radiation
12/16/1992EP0517992A1 Device for electromagnetic interference measurements
12/16/1992CN1019526B Electrastatic dynamic potential measuring device
12/15/1992US5172124 Method and device to measure the integrity of a transmission
12/10/1992WO1992021984A1 Apparatus for measuring average value of impulsive signal
12/08/1992US5170129 Charge detecting circuit with variable capacitor and method for same
12/08/1992US5170126 Of an electronic device
12/02/1992EP0515793A2 Method for calibrating radar and antenna devices
12/02/1992CN2123774U Fast static-electricity voltage testing probe
12/01/1992US5168279 Antenna for sensing stray rf radiation
12/01/1992US5168265 Personal electromagnetic radiation monitor
12/01/1992US5168212 Autonomous electro-optical lightning identification and ranging apparatus for, and method of, alerting humans and protecting equipment
11/1992
11/26/1992WO1992021037A1 Multi-mode measuring system
11/24/1992US5166959 For providing a digital output signal indicative of the time
11/19/1992EP0514320A1 Electrostatic weft-detector and loom with such weft-detector
11/17/1992US5164674 Damage to grounded/poorly grounded electronic circuits
11/17/1992US5164673 Determining the three coordinate positions of an item under study
11/12/1992WO1992019986A1 Microwave camera
11/10/1992US5162744 Method of determining settling time of a device under test
11/04/1992EP0511906A1 Procedure and apparatus for studying electrical insulators
11/04/1992CN1018953B Trap charge relaxation spectra method and its measuring system
11/03/1992WO1992019981A1 Hf background noise measurement in hf environments
11/03/1992CA2102200A1 Hf background noise measurement in hf environments
10/1992
10/28/1992EP0510430A2 Method and device for measuring the electrical potential of a sample with a radiation probe
10/22/1992DE4112951A1 Determining rate of utilisation of AC supply for operating load - measuring instantaneous effective and peak values of load current, forming quotients with effective characteristic current and max. peak value respectively and displaying larger quotient
10/21/1992EP0509731A2 Electrostatic sensor apparatus
10/21/1992EP0509694A2 A built-in system for antenna calibration and performance monitoring of a phased array antenna
10/21/1992CN1065533A Method and instrument for checking false wiring of watt-hour meter
10/20/1992US5157336 Noise measurement in a paired telecommunications line
10/20/1992US5157324 Improved electro-optical crystal
10/14/1992EP0508655A2 Equalized eye pattern instrument
10/14/1992EP0507782A1 Electric arc and radio frequency spectrum detection.
10/07/1992CN2118360U Three phase, loss of phase protector combined with phase order indicator
10/06/1992US5153524 Testing electromagnetic shielding effectiveness of shielded enclosures
10/06/1992US5153502 Low noise charge ramp electrometer
09/1992
09/30/1992EP0506527A1 Device and method for testing an array antenna during operation
09/30/1992EP0505776A2 Process and apparatus for the application of a layer on an opto-electronic component
09/30/1992EP0505391A1 Comb generator, device and process for the calibration of radiated-emission test sites.
09/30/1992CN1064947A Measurement circuit
09/30/1992CN1064946A Multifunction test pencil with simulated pointer liquid crystal display
09/29/1992US5151704 Method for simulating the effect of alternative antenna patterns on the coverage and interference pattern of a mobile radio system
09/27/1992CA2063764A1 Method and device for testing a multisource antenna in operation
09/23/1992EP0467997A4 Method and means for near field antenna monitoring
09/23/1992CN2116914U High-voltage phase-testing unit
09/22/1992US5150058 E-field detector and annunciator
09/22/1992US5150038 System for detecting the extraordinary approach of objects having earth potential toward a power transmission line
09/17/1992DE4208187A1 Measuring antenna mirror surface shape - using distance and angle measurement arrangement and computer separation gravitation independent and dependent deformations
09/17/1992DE4108251A1 Electromagnetic compatibility test chamber with resonant fields - has movable side walls enabling maximisation or resonant field strength at object, rod antennae protruding into chamber controlling polarisation
09/08/1992US5146174 Switching arrangement method and apparatus for making parameter measurement and adjustment of coupled dual resonator crystals using both resonator ports
09/03/1992DE4106132A1 Gp. antenna test arrangement for checking directional characteristic - has transducer in near field, detects pulse signals from transducer or antenna as antenna characteristic is rotated by defined angular increments
09/02/1992EP0501169A1 Device for measuring field-strength
09/02/1992CN2114832U Micro and miniature electric field detector
09/01/1992US5144226 Multi-mode measuring system
08/1992
08/26/1992EP0500448A1 Low-field sensitive electric field sensor
08/25/1992US5141316 Optical-fiber measuring device, gyrometer, central navigation and stabilizing system
08/20/1992WO1992014164A1 Method for measuring the temperature of a material by using microwave radiation
08/18/1992US5140331 Radar antenna arrangement
08/18/1992US5140272 Method of semiconductor surface measurment and an apparatus for realizing the same
08/18/1992US5140256 PWM signal demodulation method and apparatus
08/18/1992CA1306504C Noise detection by sampling digital baseband signal at eye openings
08/12/1992CN2112909U Harmonic wave active filter
08/12/1992CN1063557A Measuring system for transient charges
08/11/1992US5138639 Pulse position measurement type meter-driving circuit capable of improving measurement accuracy
08/11/1992US5138253 Wave-leakage measuring apparatus and measuring method
08/11/1992US5138200 Device for generating a reference voltage for a switching circuit including a capacitive bootstrap circuit
08/05/1992EP0497433A2 Phase controlled demodulation system for digital communication
08/05/1992CN1017765B Radio-frequency unechoic chamber
08/04/1992USH1095 Cooled, temperature controlled electrometer
08/04/1992US5136247 Apparatus and methods for calibrated work function measurements
08/04/1992US5136242 Method for measuring the field pattern of electrical or magnetic fields emanating from a biological power source using a sensor arrangement for obtaining chronological map of the position of the biological power source
08/04/1992CA1306065C Method and apparatus for comparing waveform shapes of time-varying signals
07/1992
07/29/1992EP0496381A2 Method and apparatus for testing phase shifter modules of a phased array antenna
07/28/1992US5134405 Electromagnetically anechoic chamber and shield structures therefor
07/28/1992US5134366 Magnetic head testing apparatus for detecting occurrences of popcorn noise amid externally generated noise
07/22/1992CN1062978A Electronic voltage tester with two probes
07/21/1992US5133083 Adjacent channel selectivity signal generator system