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