| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/03/1986 | WO1986003860A1 Circuit for monitoring the electric current supply of a consumer |
| 07/02/1986 | CN85103142A Hall dc-transducer |
| 07/01/1986 | US4598243 Direct-current power supply with alarm indicator |
| 06/25/1986 | EP0185377A1 Signalling circuit |
| 06/25/1986 | EP0185255A1 Method to determine the polarity of electronic components, and arrangement for carrying out this method |
| 06/25/1986 | CN85204103U Phase-position tester |
| 06/25/1986 | CN85203104U D.c. and a.c. optical fiber potential meter |
| 06/24/1986 | US4596965 Method of and apparatus for determining amplitude ratios and phase differences of signals of the same frequency |
| 06/24/1986 | CA1206526A1 Current probe signal processing circuit |
| 06/17/1986 | US4595972 On/off power detector |
| 06/17/1986 | US4595906 Scaled analog to digital coverter |
| 06/17/1986 | US4595876 Optical voltage and electric field sensor |
| 06/17/1986 | US4595836 Alignment correction technique |
| 06/17/1986 | US4595293 Detection of movement of a cyclic interference waveform, such as in a ring laser gyroscope |
| 06/11/1986 | EP0183893A1 Testing device for the detection of alternating line voltages and of alternating electromagnetic fields near live lines |
| 06/10/1986 | US4594542 Solid state, high-low resistance monitor |
| 06/10/1986 | US4594518 Voltage level sensing circuit |
| 06/10/1986 | CA1205865A1 Peak amplitude measurement |
| 06/10/1986 | CA1205859A1 Optical electric-field measuring apparatus |
| 06/04/1986 | EP0182971A2 Power on/off reset generator |
| 06/04/1986 | EP0182834A1 Optoelectric distance measuring apparatus with a time discriminator for the accurate detection of the electric pulse sequence |
| 06/03/1986 | US4593276 Overcurrent display device |
| 06/03/1986 | US4593249 Middle value selection circuit |
| 06/03/1986 | US4593241 Hall generator circuit with temperature compensation |
| 06/03/1986 | US4593180 Electric control apparatus with undervoltage protection |
| 06/03/1986 | US4592369 Method and apparatus for use in temporal analysis of waveforms |
| 05/28/1986 | EP0182388A2 Logic circuit test probe |
| 05/27/1986 | CA1205137A1 Voltage sensor device |
| 05/27/1986 | CA1205133A1 Voltage controlled current switch with short circuit protection |
| 05/22/1986 | WO1986003012A1 Voltage comparator of a type of low power comsumption |
| 05/21/1986 | EP0181759A2 Electric circuit breaker |
| 05/21/1986 | EP0181664A1 Synchronized comparator |
| 05/20/1986 | US4590547 Active full-wave rectifier detector circuit |
| 05/20/1986 | US4590391 Multi-input zero offset comparator |
| 05/14/1986 | EP0181239A1 Electronic unit for detecting the transitory variations of an electric voltage according to time |
| 05/14/1986 | EP0181054A1 Line mounted apparatus for measuring line potential |
| 05/14/1986 | EP0181017A1 Simulated transistor/diode |
| 05/06/1986 | US4587482 Digital frequency meter for measuring radiation |
| 05/06/1986 | CA1204172A1 Common mode signal detector |
| 04/29/1986 | CA1203846A1 Method of and apparatus for measuring the amplitude of a heavily noise affected periodic signal without phase reference |
| 04/23/1986 | EP0178431A1 Counterfield spectrometer for electron beam measurement |
| 04/22/1986 | US4584526 Combination continuity and live circuit path tester |
| 04/22/1986 | US4584523 Measurement of the current flow in an electric power transmission line by detection of infrared radiation therefrom |
| 04/22/1986 | CA1203574A1 Fault indicator with improved flag indicator assembly |
| 04/22/1986 | CA1203569A1 Optically coupled input circuit for digital control |
| 04/16/1986 | EP0178209A1 Analogous signal level detector |
| 04/16/1986 | EP0178003A1 Level indicator |
| 04/16/1986 | EP0035032B1 Apparatus for signal selection from redundant channels |
| 04/15/1986 | US4583086 Circuit for monitoring the operating condition of an electric load |
| 04/15/1986 | US4583043 Determination of electrical energy diversion |
| 04/15/1986 | US4583010 Signal discriminating apparatus |
| 04/15/1986 | US4581922 Method of and device for obtaining the peak value of a signal and application to a method of and device for determining the hardness of a soil |
| 04/09/1986 | EP0176800A1 Method and apparatus for controlling the switching condition of a gate turn-off thyristor |
| 04/08/1986 | US4581705 Method and machine for metering electric parameters |
| 04/02/1986 | EP0176165A2 Voltage difference detector |
| 04/01/1986 | US4580070 Low power signal detector |
| 03/27/1986 | WO1986001904A1 Fan motor monitoring circuit |
| 03/25/1986 | US4578667 Digital acquisition system including a high-speed sampling gate |
| 03/25/1986 | US4578632 Intergratable load voltage sampling circuit for R.M.S. load average voltage control apparatus |
| 03/25/1986 | CA1202380A1 Dual output precision rectifier and regulator |
| 03/19/1986 | EP0174736A1 Circuit for detecting level of input voltage |
| 03/19/1986 | EP0174518A1 Zero-cross point detecting circuit |
| 03/18/1986 | US4577318 Self testing detection system for comparing digital signal transition times |
| 03/18/1986 | US4577151 Spark monitor device for current collectors |
| 03/18/1986 | US4577147 Arrangement and method for voltage measurement at a buried test subject |
| 03/18/1986 | US4577121 Differential circuit |
| 03/11/1986 | US4575649 RMS converters |
| 03/05/1986 | EP0173083A1 Protective control method |
| 03/05/1986 | CN85201729U Two-way low voltage electrical screwdriver |
| 03/04/1986 | US4574276 Indicating system |
| 03/04/1986 | US4574234 System for measuring selected parameters of electrical signals and method |
| 03/04/1986 | US4574202 Rectifier circuit with attack time variable in response to an input signal level |
| 03/04/1986 | CA1201482A1 Current circuit monitoring |
| 02/26/1986 | EP0172498A1 Electrode for sensing the voltage of a source having a plane contact region |
| 02/25/1986 | US4573007 Digital test probe having memory for logic levels at different test locations |
| 02/25/1986 | US4572973 AC Current detection circuit for a rotor driving supply source of a rotating anode X-ray tube |
| 02/18/1986 | US4571502 Full wave rectifier having an operational amplifier |
| 02/11/1986 | US4570064 Optical D.C. electric-field measuring apparatus with optic sensing means exhibiting both electrooptic and photoelectric effects |
| 02/05/1986 | EP0170554A1 Periodic-signal peak-value detector |
| 02/04/1986 | US4568877 Reference frequency and low voltage detector circuit |
| 02/04/1986 | US4568867 Method for reducing the consumption of a stepping motor and device for carrying out the method |
| 01/29/1986 | EP0169754A1 Analogous comparator using charge transfer, and devices using such a comparator |
| 01/29/1986 | EP0169310A1 Alignment correction system |
| 01/28/1986 | US4567476 Method and circuit for optical and/or acoustic indication of the charge state of a battery or a storage battery |
| 01/21/1986 | US4566101 Oscillatory failure monitor |
| 01/14/1986 | US4564821 Offset cancelling AC level detector using an oscillator |
| 01/14/1986 | US4564804 Method and apparatus for automatically detecting signal levels |
| 01/14/1986 | US4564802 Test device for fuses and batteries |
| 01/14/1986 | CA1199392A1 Power supply monitor |
| 01/14/1986 | CA1199386A1 Proximity detector of electric lines, and method |
| 01/08/1986 | EP0166814A1 Method and device for detecting and displaying a measuring point which carries a voltage of at least one certain frequency |
| 01/07/1986 | US4563641 Radiation upset threshold detector apparatus |
| 01/07/1986 | US4563637 System for measuring amplitude of noise-contaminated periodic signal |
| 01/07/1986 | CA1199070A1 Electronic watt/var transducer |
| 01/07/1986 | CA1199069A1 Active voltage probe |
| 01/02/1986 | EP0166699A1 Circuit for detecting the passage through zero of the signal generated by an electromagnetic sensor of the phonic wheel type |
| 01/02/1986 | EP0166524A1 Six-port reflectometer |
| 01/02/1986 | EP0166209A2 Device for checking protective measures in electrical equipment |
| 12/31/1985 | US4562548 Alarm limit recentering arrangement for maintaining uniform alarm limit tolerances about a sloping regulation characteristic |
| 12/31/1985 | US4562363 Method for using a charge coupled device as a peak detector |