| Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937) |
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| 04/16/1987 | DE3532214A1 Method for determining the modes existing in a waveguide, and an arrangement for carrying out the method |
| 04/14/1987 | US4658210 Noninterruptive noise measurement |
| 04/08/1987 | EP0216768A1 Anechoid chambers |
| 04/08/1987 | CN85107380A Test pencil for measuring phase-sequence |
| 04/08/1987 | CN85102585A Single board machine type mlutichannel pulse analyzer |
| 04/01/1987 | EP0215810A1 Circuit for obtaining an average value. |
| 03/31/1987 | US4654861 Method and device for measuring phase jitter on a transmission channel |
| 03/18/1987 | CN86201209U Digital measuring instrument for coil turns |
| 03/10/1987 | US4649336 Automatic, self sustaining probe for measuring the work function |
| 03/03/1987 | US4647849 Two dimensional non-field perturbing, diode detected, double gapped, high sensitivity, B-dot electromagnetic field probes |
| 02/24/1987 | US4646297 Skew detector |
| 02/17/1987 | US4643561 Control system for an electrophotographic printing machine |
| 02/10/1987 | US4642559 Electrostatic field meter |
| 02/10/1987 | US4642558 Miniature electromagnetic field measurement probe |
| 02/03/1987 | US4641246 Sampling waveform digitizer for dynamic testing of high speed data conversion components |
| 02/03/1987 | US4641090 Polyphase electrical signal measuring apparatus |
| 02/03/1987 | US4641088 Root mean square measuring device for negative sequence current |
| 01/28/1987 | EP0209656A2 Method and device for evaluating a pulse train containing information in the frequency and the pulse width |
| 01/28/1987 | CN85105751A Manufacturing method of ac & dc fibre-optic voltmeter (electric field) |
| 01/27/1987 | US4639678 Absolute charge difference detection method and structure for a charge coupled device |
| 01/24/1987 | CN86102367A Test instrument of low-frequency impact noice for gear box |
| 01/22/1987 | DE3526071A1 Test arrangement for focus-fed parabolic reflector antenna |
| 01/13/1987 | US4636720 Phase detector |
| 01/07/1987 | EP0207554A1 Method of and device for determining a measure of the surface potential of a medium charged by means of a corona charging device |
| 01/06/1987 | US4635298 Interference wave detection circuit for use in radio receiver |
| 01/06/1987 | US4634969 Time varying magnetic field safety probe |
| 01/06/1987 | US4634968 Wide range radiation monitor |
| 01/06/1987 | US4634962 Phase noise analyzer |
| 12/23/1986 | USRE32314 Frequency control circuits such as for use in modulation measurement |
| 12/23/1986 | US4631473 Transient electromagnetic field detector |
| 12/23/1986 | US4631423 Sampling system for measuring unknown signals |
| 12/23/1986 | US4631402 Optical electric-field measuring apparatus |
| 12/10/1986 | EP0204473A2 Improvements in or relating to microwave energy detection |
| 12/10/1986 | CN85204659U Multifunctional signal device |
| 12/09/1986 | US4628254 Method for digitally measuring waveforms |
| 12/09/1986 | US4627268 Method for calibrating instruments for time interval measurements |
| 12/04/1986 | WO1986007218A1 Method and apparatus for editing particle produced electrical pulses |
| 12/04/1986 | WO1986007160A1 Device for the detection of corona discharges in alternating current overhead lines |
| 12/02/1986 | US4627103 S/N ratio determining method and apparatus for a receiver |
| 12/02/1986 | US4626791 Microwave detector |
| 12/02/1986 | US4626622 Telephasing method and system for remotely identifying unknown phases of transmission or distribution lines within an electrical network |
| 11/26/1986 | CN86103646A Method and apparatus for editing particle produced electrical pulses |
| 11/25/1986 | US4625176 Electrostatic probe |
| 11/25/1986 | CA1214556A1 Method of and apparatus for measuring the transverse moments of the electromagnetic field associated with an optical beam |
| 11/19/1986 | CN86103460A Detector for electronially detecting defect of cause loss for electric-energy in the d.c. transmission lines |
| 11/11/1986 | US4622574 Semiconductor chip with recessed bond pads |
| 11/05/1986 | EP0200300A1 Nondestructive readout of a latent electrostatic image formed on an insulating material |
| 11/05/1986 | CN86102223A Nondestructive readout of a latent electrostatic image formed on an insulating material |
| 10/28/1986 | US4620114 Signal strength detector |
| 10/07/1986 | CA1212416A1 Device for measuring at a distance the phase in an electrical network transmission line and/or feeder |
| 10/01/1986 | EP0195800A1 Radiation power measuring apparatus |
| 09/25/1986 | WO1986005594A1 Circuit for obtaining an average value |
| 09/24/1986 | EP0195467A1 Induction probe arrangement with several probes |
| 09/23/1986 | US4613807 Low-noise system for measuring frequency in multiphase power transmission systems |
| 09/23/1986 | US4613228 Electrostatic recording apparatus |
| 09/16/1986 | US4612545 Automatic frequency identifier for radar signals |
| 09/16/1986 | US4611926 Time interval measuring instrument |
| 09/09/1986 | US4611166 Radiation hazard detector |
| 09/09/1986 | CA1211155A1 Optical electric-field measuring apparatus |
| 09/03/1986 | EP0193453A1 Device for controlling a pulse period |
| 09/03/1986 | EP0193040A1 Method and arrangement for analysing electric signals |
| 09/02/1986 | US4609877 Buffer circuit with differential structure for measurement of capacitive charges |
| 09/02/1986 | US4609866 Electrical systems interference locator |
| 08/27/1986 | EP0192530A1 Circuit for comparing the widths of two rectangular pulses |
| 08/27/1986 | EP0191947A1 An apparatus for compensating a quantization error |
| 08/26/1986 | US4608657 Method and apparatus for testing probe calibration |
| 08/26/1986 | US4608647 Method and apparatus for determining the noise power ratio (NPR) of a unit under test |
| 08/12/1986 | US4605916 Transverse electromagnetic cells adapted for electromagnetic pulse testing |
| 07/29/1986 | US4603294 Measuring device for the accurate adjustment of the start-of-measurement of a measuring transducer |
| 07/29/1986 | US4603293 Measurement of electrical signals with subpicosecond resolution |
| 07/29/1986 | US4603292 Frequency and time measurement circuit |
| 07/15/1986 | US4600883 Apparatus and method for determining the range and bearing in a plane of an object characterized by an electric or magnetic dipole |
| 07/15/1986 | CA1207848A1 Ac parametric circuit |
| 07/08/1986 | US4599045 Safety means and method for the handling of flammable fluids |
| 07/02/1986 | EP0186402A2 Storm warning method and apparatus |
| 07/02/1986 | CN85204423U Multifunction electrostatic admeasuring apparatus |
| 06/25/1986 | CN85204103U Phase-position tester |
| 06/25/1986 | CN85203104U D.c. and a.c. optical fiber potential meter |
| 06/11/1986 | EP0183893A1 Testing device for the detection of alternating line voltages and of alternating electromagnetic fields near live lines |
| 06/10/1986 | CA1205859A1 Optical electric-field measuring apparatus |
| 06/03/1986 | US4593317 Moving scene display for passive radiation-wave imaging system |
| 05/28/1986 | EP0181935A1 Microwave radiometer using fanbeam inversion. |
| 05/27/1986 | CA1205196A1 Measurement system of enhanced reliability |
| 05/21/1986 | EP0181701A1 Carrier to noise ratio measurement circuit |
| 05/21/1986 | EP0181517A1 Demodulator for an asynchronous binary signal |
| 05/14/1986 | EP0181239A1 Electronic unit for detecting the transitory variations of an electric voltage according to time |
| 05/13/1986 | US4588993 Broadband isotropic probe system for simultaneous measurement of complex E- and H-fields |
| 04/30/1986 | CN85203166U Wide frequence sequence meter for three phase electricity |
| 04/23/1986 | EP0178341A1 Process and apparatus for sorting samples |
| 04/22/1986 | US4584531 Noncontact electrostatic hoop probe for combustion engines |
| 04/15/1986 | CA1203283A1 Method and apparatus for judging the calibration of voltage attenuation probes |
| 04/01/1986 | US4580234 Measurement system of enhanced reliability |
| 04/01/1986 | US4580227 Device for determining and following the instantaneous coordinates of the extreme value of a curve |
| 03/27/1986 | WO1986001889A1 Radiation power measuring apparatus |
| 03/25/1986 | US4578634 Apparatus for determining frequency versus acceleration characteristics for crystals |
| 03/25/1986 | CA1202380A1 Dual output precision rectifier and regulator |
| 03/18/1986 | US4577318 Self testing detection system for comparing digital signal transition times |
| 02/25/1986 | US4572973 AC Current detection circuit for a rotor driving supply source of a rotating anode X-ray tube |
| 02/25/1986 | US4572965 Circuit for detecting existence of an information signal |
| 02/18/1986 | US4571617 Apparatus and method for measuring and displaying the pulse width of a video signal |