| Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937) |
|---|
| 01/27/1988 | EP0254388A2 Frequency-measuring electrical apparatus |
| 01/27/1988 | EP0120087B1 Noncontact electrostatic hoop probe for combustion engines |
| 01/26/1988 | US4721958 Real-time pulse processor |
| 01/26/1988 | US4721902 Noise rejection in a sonic transducer |
| 01/26/1988 | CA1232023A1 Method and apparatus for supervising digital radio transmission line |
| 01/20/1988 | EP0253545A2 Signal measurement |
| 01/20/1988 | EP0253482A1 Measuring adjacent channel power |
| 01/20/1988 | EP0253215A1 Method and apparatus for processing pulses of a signal which is distorted during transmission |
| 01/19/1988 | US4720682 Surface electric potential sensor |
| 01/14/1988 | WO1988000354A1 Method and apparatus for precisely measuring relative velocity in an interferometric radiometer |
| 01/14/1988 | WO1988000353A1 Radiometric imager having a frequency-dispersive linear array antenna |
| 01/14/1988 | DE3622570A1 Variable-voltage unit for alternating-voltage test installations |
| 01/12/1988 | US4719581 Signal processing unit |
| 01/12/1988 | US4719408 Apparatus for indicating proper compensation of an adjustable frequency compensation network |
| 01/07/1988 | EP0251532A2 A static monitoring system |
| 01/07/1988 | EP0251500A1 Apparatus and methods for inspection of electrical materials and components |
| 01/07/1988 | EP0250682A2 Pulse measurement circuit |
| 12/31/1987 | CN87200670U Double-probe test pencil with the function of determining power phase sequence |
| 12/30/1987 | CN87200470U Turns detector for cored winding |
| 12/29/1987 | US4716373 Method and circuit arrangement for increasing the signal-to-noise ratio of a periodical electrical signal |
| 12/29/1987 | US4716371 Non-contact autoranging electrostatic fieldmeter with automatic distance indicator |
| 12/26/1987 | CN87205029U Transient recorder with a selection of memory capacity |
| 12/23/1987 | EP0250292A1 Interference current probe comprising a resonant loop |
| 12/22/1987 | US4714873 Microwave noise measuring apparatus |
| 12/16/1987 | EP0249448A1 Defect detector circuit for inductive load driving circuit |
| 12/12/1987 | CN86209985U Multi-purpose non-contact electricity tester |
| 12/10/1987 | DE3619314A1 Microwave measuring apparatus |
| 12/10/1987 | DE3619175A1 Method for laboratory simulation of multipath fading processes |
| 12/09/1987 | EP0248737A1 Circuit for analysing an electric amplitude-modulated signal comprising a frequency converter |
| 12/09/1987 | EP0248501A1 Detection system for detecting imperfections in a shielding against EM radiation |
| 12/09/1987 | EP0248428A2 Intermediate frequency amplification circuit capable of detecting a field strength with low electric power |
| 12/08/1987 | US4712061 Small propagation delay measurement for digital logic |
| 12/05/1987 | CN86209548U Simple tester for determing phase sequence of three-phase alternating current |
| 12/03/1987 | DE3618365A1 Device for testing DC electrical connections and the rotating field direction |
| 12/02/1987 | EP0247654A2 Noise immune circuit for use with frequency sensor |
| 12/02/1987 | CN86103907A Synchronous rotary light-emitting diode measurement of operating frequency phase |
| 12/01/1987 | US4710721 Apparatus for monitoring the period of separation of impulses |
| 12/01/1987 | US4710653 Edge detector circuit and oscillator using same |
| 11/25/1987 | EP0246544A1 Device for the EMI testing of electronic equipments |
| 11/25/1987 | EP0246460A1 Process for the measurement of alternating electric or magnetic fields and arrangement for carrying out the process |
| 11/25/1987 | EP0246355A2 Error and calibration pulse generator |
| 11/10/1987 | US4704872 Thermally controlled T/R module test apparatus |
| 11/05/1987 | WO1987006711A1 Measurement circuit |
| 11/04/1987 | CN87200720U Phase sequence monitor of three-phase supply |
| 11/03/1987 | US4704614 Apparatus for scanning and measuring the near-field radiation of an antenna |
| 11/03/1987 | US4704036 Pulse measurement circuit |
| 10/31/1987 | CN86209527U Phase sequence test pencil for power source |
| 10/28/1987 | EP0242446A2 Duty ratio measuring system for variable frequency pulses |
| 10/13/1987 | CA1228124A1 Interference wave detection circuit for use in radio receiver |
| 10/03/1987 | CN86209670U Pocket power phase-sequence detector |
| 09/30/1987 | EP0239251A2 Method and apparatus for monitoring electromagnetic emission levels |
| 09/30/1987 | EP0238906A2 Noise detection by sampling digital baseband signal at eye openings |
| 09/29/1987 | US4697098 Composite gate generator circuit for detecting valid data signals |
| 09/22/1987 | US4696057 CN ratio measurement circuit |
| 09/22/1987 | CA1227246A1 Method and device for measuring phase jitter on a transmission channel |
| 09/16/1987 | EP0236840A2 Pulse length discriminator |
| 09/15/1987 | US4694402 Waveform disturbance detection apparatus and method |
| 09/15/1987 | US4694234 For detecting a pulse width of a pulse signal |
| 09/10/1987 | DE3606976A1 Signal filter |
| 09/10/1987 | DE3545257A1 EMP sensor |
| 09/09/1987 | EP0235911A2 Level detecting waveform sampling system |
| 09/08/1987 | US4692710 Fundamental and harmonic pulse-width discriminator |
| 09/08/1987 | US4692692 Electronic apparatus for detecting stray variations in an electrical voltage as a function of time |
| 09/03/1987 | DE3606326A1 Microwave smog detector |
| 08/19/1987 | CN86208019U Phase sequence measurer with memory unit |
| 08/19/1987 | CN86203242U Multi-function phase-sequence test pencil |
| 08/12/1987 | EP0231786A2 Process for eliminating disturbances in measuring signals |
| 08/05/1987 | CN86203178U Test pencil with phase-sequence detection and safe or dangerous voltage identification functions |
| 08/04/1987 | US4684955 For use in a communication system |
| 08/04/1987 | CA1225157A1 Signal recognition system |
| 07/28/1987 | US4683436 Surface potential electrometer and image forming apparatus using the same |
| 07/28/1987 | US4682735 Electrostatic field indicator light for electrostatic nozzles |
| 07/21/1987 | US4682060 Noise suppression in an I-F substitution loop |
| 07/14/1987 | US4680722 Arrangement for determining the starting instant of the leading edge of a high-frequency pulse |
| 07/07/1987 | US4679245 Radio receiver |
| 07/01/1987 | EP0227248A2 Apparatus for indicating proper compensation of an adjustable frequency compensation network |
| 07/01/1987 | EP0226631A1 Method and apparatus for editing particle produced electrical pulses. |
| 06/30/1987 | US4677619 Method and apparatus for supervising digital radio transmission line |
| 06/24/1987 | EP0225973A2 Electromagnetic field probe |
| 06/23/1987 | US4675597 Circuit analyzer for measuring pulse repetition rate and pulse width |
| 06/23/1987 | US4675530 Charge density detector for beam implantation |
| 06/16/1987 | US4673885 Devices for reading the quantities of electrical charges borne by a dielectric |
| 06/16/1987 | EP0225705A2 Method and apparatus for collecting time-dependent data |
| 06/16/1987 | EP0225337A1 Device for the detection of corona discharges in alternating current overhead lines. |
| 06/10/1987 | CN86206105U Triphase phase-sequence indicator |
| 06/09/1987 | US4672305 Storm warning method and apparatus |
| 06/03/1987 | CN86207221U Electronic detector for energy loss of network |
| 06/02/1987 | US4670711 High-speed transient pulse height counter |
| 06/02/1987 | US4670665 Digital pulse width detector |
| 05/27/1987 | EP0222950A1 A non-contact autoranging electrostatic fieldmeter with automatic distance indicator |
| 05/27/1987 | CN86202707U Voltage testpen with phase-detecting feature |
| 05/26/1987 | US4668909 Piezoelectric material testing method and apparatus |
| 05/21/1987 | DE3540988A1 Circuit for measurement conversion with direct-current isolation |
| 05/19/1987 | US4667198 Apparatus for measuring quantity of AC electricity |
| 05/06/1987 | CN85108562A Microwave radiometer with output irrelative to variations of circuital parameters in system |
| 05/05/1987 | US4663526 Nondestructive readout of a latent electrostatic image formed on an insulating material |
| 04/28/1987 | US4661820 Method and equipment for picking up antenna patterns in near-fields |
| 04/28/1987 | EP0151633A4 An interruptible voltage-controlled oscillator. |
| 04/21/1987 | US4659984 Passive integrating electromagnetic field dosimeter |
| 04/21/1987 | US4659974 Controlling electrical phase connections to a three-phase device |