| Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937) |
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| 10/27/1988 | DE3809199A1 Method for determining the repetitive time of synchronization |
| 10/26/1988 | CN87213045U Single-pulse high-voltage testing system |
| 10/25/1988 | US4780667 Magnetostatic wave delay line discriminator with automatic quadrature setting and automatic calibration |
| 10/20/1988 | DE3722406A1 Method for antenna measurements by means of the complex reflection factors of the object being measured |
| 10/19/1988 | EP0286671A1 Time domain reflectometer |
| 10/19/1988 | CN88101705A System and method for identifying phase conductor |
| 10/18/1988 | US4779163 Method and apparatus for controlling electrostatic charges in fluidized beds |
| 10/18/1988 | CA1243354A1 Signal strength detector |
| 10/05/1988 | EP0285532A1 Fault detector device in a three-phase network supplying leads by full wave trains |
| 10/04/1988 | US4775840 Noise removing circuit |
| 10/04/1988 | US4775839 Control apparatus for the electronic detection in a.c. power transmission lines of fault locations causing power losses |
| 10/04/1988 | US4775244 Method and apparatus for measurement of pulse width of very short pulses |
| 09/28/1988 | EP0284067A2 Identifier for phases |
| 09/28/1988 | EP0283535A1 Wave-leakage measuring apparatus |
| 09/27/1988 | US4774406 Device for measuring an electrical field by an optical method |
| 09/15/1988 | DE3807325A1 Geraet zur messung der phasenmodulation in einem optischen wellenleiter Apparatus for measuring the phase modulation in an optical waveguide |
| 09/07/1988 | CN87216454U Microcomputer controlled instrument for measuring number ratio of windings |
| 08/31/1988 | CN87217031U Signal monitor |
| 08/30/1988 | US4768026 Yarn break detector for spinning and weaving machines |
| 08/30/1988 | US4767973 Systems and methods for sensing position and movement |
| 08/30/1988 | US4766903 Apparatus for detecting of voltages or charges on the human body and for removing such stresses or charges from the human body |
| 08/30/1988 | CA1241385A1 Arrangement for determining the starting instant of the leading edge of a high-frequency pulse |
| 08/25/1988 | WO1988006284A1 Apparatus and method for testing contact interruptions of circuit interconnection devices |
| 08/18/1988 | DE3703755A1 Absorber for electromagnetic rays |
| 08/10/1988 | EP0277468A1 Method and apparatus for detecting and indicating anomalies in the operation of the ignition systems of internal combustion engines, particularly for motor vehicles provided with catalytic silencers |
| 08/10/1988 | CN87100329A Optimum transfer measuring method of ground station |
| 08/09/1988 | US4763078 Sensor for electrostatic voltmeter |
| 08/09/1988 | US4763062 Conductive EMI test system, a decoupling network therefor |
| 08/09/1988 | CA1240413A1 Detector/dosimeter for gamma and microwave radiation |
| 08/03/1988 | EP0276280A1 Method for remotely detecting an electric field. |
| 08/02/1988 | USH514 Compact range for variable-zone measurements |
| 07/27/1988 | EP0276181A1 Method and device for checking faulty conductors of an electrical line |
| 07/27/1988 | EP0275430A2 Apparatus for simulating radar targets during the laboratory testing of radar seekers |
| 07/27/1988 | CN87206223U Multifunction electrical test pen |
| 07/26/1988 | US4760342 For determining the charge distribution |
| 07/20/1988 | EP0274529A1 Liquid crystal display. |
| 07/19/1988 | US4758092 Method and means for optical detection of charge density modulation in a semiconductor |
| 07/13/1988 | EP0273929A1 Radiometric imager having a frequency-dispersive linear array antenna. |
| 07/13/1988 | EP0273925A1 Method and apparatus for precisely measuring relative velocity in an interferometric radiometer. |
| 07/13/1988 | CN85100132B Host machine of automatic six-port reflectometer |
| 06/29/1988 | EP0272871A2 Liquid crystal voltmeter |
| 06/28/1988 | US4754496 Test and measurement system for antennas |
| 06/28/1988 | US4754216 Method and apparatus for qualifying the decode window margin of a phase locked loop data synchronizer |
| 06/22/1988 | CN87104552A Method and apparatus for precision measurement of relative speeds in interference radiationmeter |
| 06/21/1988 | US4752730 Radiation monitor diode detector with constant efficiency for both CW and pulsed signals |
| 06/15/1988 | EP0271191A1 Absolute electrical potential measuring apparatus and method |
| 06/15/1988 | EP0270798A1 Apparatus for selective signal counting |
| 06/14/1988 | US4751721 Apparatus and method for testing contact interruptions of circuit interconnection devices |
| 06/14/1988 | US4751455 Low frequency noise measurement system using sliding pole for fast settling |
| 06/08/1988 | EP0269827A1 Digital measuring apparatus |
| 06/08/1988 | CN87212967U Three phase unblanced power load measuring instrument |
| 06/07/1988 | US4749920 Multiple polyphase motor drive system for textile machine |
| 06/01/1988 | DE3700368C1 Digital oscilloscope |
| 05/31/1988 | US4748399 Multichannel phase noise measurement system |
| 05/31/1988 | CA1237474A1 Root mean square measuring device for negative sequence current |
| 05/24/1988 | US4746810 Pulse generating circuit |
| 05/19/1988 | DE3639463A1 Pulse monitoring circuit |
| 05/18/1988 | CN86106945A Coil winding-direction tester |
| 05/11/1988 | EP0266883A1 Detection of unsafe voltages on mobile equipment |
| 05/11/1988 | EP0266551A1 Non-contacting voltage metering apparatus |
| 05/11/1988 | CN87212136U Single signal crosstalk tester of carrier telephone |
| 05/04/1988 | CN87213153U Probe for three-dimentional electromagnetic filed density measuring apparatus |
| 05/03/1988 | US4742561 Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment |
| 05/03/1988 | US4742248 Random signal isolation circuit |
| 04/28/1988 | DE3635611A1 Partial-discharge measurement of a high-voltage transformer |
| 04/26/1988 | US4740862 Ion imbalance monitoring device |
| 04/26/1988 | US4740790 Antenna polarization measuring methods |
| 04/21/1988 | WO1988002953A1 High voltage amplifier |
| 04/19/1988 | US4739349 Devices for making electric charge images visible |
| 04/19/1988 | US4739251 Analysis circuit for an amplitude-modulated electric signal comprising a frequency transposer |
| 04/13/1988 | CN87102941A Measurement circuit |
| 04/12/1988 | US4737971 Synchronization detection circuit |
| 04/12/1988 | US4737730 Peak detector circuit for FM measuring apparatus |
| 04/07/1988 | WO1988002578A1 Time domain reflectometer |
| 04/07/1988 | WO1988002482A1 Determination of particle size and electric charge |
| 04/06/1988 | EP0262365A2 Spectrometer-detector arrangement for quantitative potential measurements |
| 04/06/1988 | CN87202917U Phase-sequence identifying and regulating unit |
| 04/06/1988 | CN87202540U Phase-sequence pen of universol avometer |
| 03/30/1988 | EP0261779A1 Cw and pulse capable crystal video receiver |
| 03/24/1988 | DE3738771A1 Amplifying device for unipolar pulse-shaped signals having a duty ratio of less than 0.5 |
| 03/23/1988 | EP0260844A2 Detector/dosimeter for gamma and microwave radiation |
| 03/22/1988 | US4733164 Method and apparatus for frequency measurement and adjustment of monolithic crystal filters |
| 03/16/1988 | CN85105751B Fibre-optic voltmeter (electric field) |
| 03/08/1988 | US4730109 Apparatus and method for measuring electric field by electroreflectance |
| 03/02/1988 | EP0258023A2 Method and apparatus for testing electrical equipment |
| 03/02/1988 | EP0257726A2 Sweep generator error characterization |
| 03/01/1988 | US4728816 Error and calibration pulse generator |
| 02/25/1988 | DE3628740A1 Method for suppressing mutual interference in pulse-processing systems |
| 02/24/1988 | CN87200169U Pincer type wattmeter |
| 02/23/1988 | US4727314 Transient detector apparatus |
| 02/23/1988 | US4727270 Noise immune circuit for use with frequency sensor |
| 02/16/1988 | US4725771 Method and apparatus for frequency adjustment of monolithic crystal filters |
| 02/10/1988 | CN87104562A Radiation detection imaging system with frequency spreading collinear array |
| 02/09/1988 | US4724393 Surface potential detector |
| 02/09/1988 | US4724382 Testing instrument for detectlng alternating voltages in mains and alternating electromagnetic fields in the vicinity of voltage-carrying conductors |
| 02/02/1988 | US4723189 Negative sequence detector for a continuous wave frequency transducer |
| 01/28/1988 | WO1988000718A1 Method for remotely detecting an electric field |
| 01/28/1988 | WO1988000717A1 Liquid crystal display |
| 01/27/1988 | EP0254601A1 Device for electrostatic field measurement by an optical method |
| 01/27/1988 | EP0254443A1 Method of and apparatus for the measurement of slowly changing or static electrical polarization |