| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
|---|
| 11/12/1980 | EP0018921A1 Device for electric transmission by a system of separable and contactless connections |
| 11/04/1980 | US4232264 Arrangement for the magneto-optical measurement of currents |
| 11/04/1980 | US4231374 Procedure and device for the detection of extraordinary events in a series of essentially periodically recurring normal events |
| 10/29/1980 | EP0017876A1 Multiple purpose electrical measuring instrument |
| 10/21/1980 | US4229697 Magnetometer instrumentation with digitally controlled range changing |
| 10/07/1980 | US4227148 External means for increasing the sensitivity of a moving magnet type of meter |
| 09/23/1980 | US4224569 Display stabilization circuit |
| 08/12/1980 | US4217651 Electrical measurements |
| 07/24/1980 | WO1980001516A1 Improvement relating to voltage capacitive transformers |
| 07/15/1980 | US4213089 Variable scale readout for multi-meter use |
| 07/15/1980 | US4213088 Voltage measuring circuit |
| 07/08/1980 | US4211917 Circuit board testing apparatus and method |
| 07/01/1980 | CA1080806A1 Automatic zeroing circuit to compensate for dark currents or the like |
| 06/24/1980 | US4209852 Signal processing and memory arrangement |
| 06/24/1980 | US4209743 Circuit arrangement for measuring currents at high potential |
| 06/10/1980 | US4207566 DC Current level detector for monitoring a pitot tube heater and associated method |
| 05/28/1980 | EP0011110A1 Arrangement for electro-optical voltage measuring |
| 05/27/1980 | US4205376 Method and apparatus for initializing vehicle-mounted computers |
| 05/27/1980 | US4205267 High speed electrostatic voltmeter |
| 05/20/1980 | US4204152 High and low voltage measuring apparatus employing a single display and impedance matching |
| 05/14/1980 | EP0010921A1 Direct current detecting device using saturable reactors |
| 05/14/1980 | EP0010682A1 Device for transmitting analogue signals over an optical link |
| 05/13/1980 | US4203033 Radiation energy calibrating system and method |
| 05/06/1980 | CA1077141A1 Compensated signal isolator |
| 04/30/1980 | EP0010221A1 Fibre optic measuring instrument |
| 04/30/1980 | EP0010151A1 Circuit for distinguishing between high direct or alternating voltages |
| 04/22/1980 | CA1076229A1 Two-wire transmitter with totalizing counter |
| 04/16/1980 | EP0009486A1 Apparatus for measuring mono-, bi- and tripolar short-circuit currents on low voltage net works |
| 04/15/1980 | US4198607 Input circuit for a measuring amplifier device |
| 04/15/1980 | US4198595 Apparatus and method of phase shift compensation of an active terminated current transformer |
| 04/02/1980 | EP0009220A1 System for transmitting signals over an optical link |
| 04/01/1980 | US4196388 Apparatus for monitoring high alternating voltages |
| 04/01/1980 | US4196345 Operating parameter selection and entry device |
| 03/18/1980 | US4193300 Signal linearizing circuit for internal combustion engines |
| 03/05/1980 | EP0008371A1 Circuit with a rectifier and a logarithmic amplifier |
| 03/05/1980 | EP0008363A1 Method for improving the signal-to-noise ratio in the transmission of polarised light through a light conducting fibre and magneto-optical current transformer using this method |
| 02/06/1980 | EP0007907A1 Audible voltage-impedance tester |
| 02/06/1980 | EP0007868A1 Improvements in devices equipped to detect magnetic flux variations, especially in circuit interruptors |
| 01/29/1980 | CA1070765A1 Current measuring apparatus |
| 01/15/1980 | CA1069977A1 Device for measuring the alternating current flowing in a high tension line |
| 01/09/1980 | EP0006565A1 Method and circuit for contactless measuring of direct and alternative currents |
| 01/09/1980 | EP0006530A1 Fibre-optical temperature sensor |
| 01/08/1980 | US4182982 Current sensing transducer for power line current measurements |
| 01/01/1980 | US4181961 Process for the measurement of absolute values by means of a non-linearly working measured value emitter, and a measuring device for carrying out the process |
| 12/25/1979 | US4180775 Magnetic thin-film split-domain current sensor-recorder |
| 12/18/1979 | US4179655 Moving coil instrument with linear characteristic |
| 12/18/1979 | US4179649 Voltage supply apparatus powered from a vehicular electrical system |
| 12/18/1979 | CA1068344A1 Technique for extending the range of a signal measuring circuit |
| 12/18/1979 | CA1068336A1 Current divider |
| 10/30/1979 | CA1065408A1 Automatic range selection circuit |
| 10/23/1979 | CA1065016A2 Sensing electrical parameters inside conductors |
| 10/03/1979 | EP0004321A1 Method for magneto-optical current measuring |
| 10/03/1979 | EP0004259A1 Faraday effect current measuring device and method of its use |
| 09/25/1979 | CA1063176A1 Sensing electrical parameters inside conductors |
| 08/23/1979 | WO1979000545A1 Apparatus for measuring mono-,bi-and tripolar short-circuit currents on low voltage net works |
| 08/14/1979 | US4164145 Self-powered electrical meter for display of a liquid-level or the like measurement |
| 08/07/1979 | CA1060098A1 System for monitoring and measuring high voltage d.c. transmission line current |
| 08/07/1979 | CA1060089A1 Remote selector for flight instruments |
| 07/31/1979 | CA1059585A1 Voltage sensing device for use at high voltage |
| 07/17/1979 | US4161691 Multi-purpose digital measuring apparatus |
| 07/12/1979 | WO1979000389A1 Audible voltage-impedance tester |
| 07/11/1979 | EP0002659A1 Magneto-optical method for measuring current |
| 07/10/1979 | US4160954 Multiple rate discharge circuit for integrator, especially for use in computerized axial tomography |
| 07/10/1979 | US4160950 Current measuring apparatus |
| 07/03/1979 | US4160206 Audible voltage-impedance tester |
| 06/19/1979 | US4158810 Telemetering post for measuring variables in a high-voltage overhead line |
| 05/29/1979 | US4156849 Display device in electrical equipment |
| 05/15/1979 | US4155036 Apparatus for testing cooking range electrical circuitry |
| 05/15/1979 | CA1054304A1 Sealing apparatus for toilet |
| 05/08/1979 | CA1053924A1 Calibrating a measurement system including bridge circuit |
| 05/01/1979 | US4152716 Voltage dividing circuit in IC structure |
| 04/24/1979 | US4151472 Selective calling circuit employing controlled power supply therefor |
| 04/24/1979 | CA1053333A1 Measuring circuit |
| 04/24/1979 | CA1053328A1 Current regulating circuits |
| 04/19/1979 | WO1979000180A1 Indicator for a limit value and a measurement value |
| 04/17/1979 | US4150310 Track and hold circuit |
| 04/10/1979 | US4149120 Circuit arrangement for linearizing the output signal of a test sensor |
| 04/10/1979 | US4149119 Combined AC-DC electrometer with AC feedback for drift compensation |
| 04/10/1979 | CA1052445A1 Single knob rotary control of meter damping and push control damping override |
| 04/03/1979 | US4147989 Non-linear direct-current amplifier for measuring purposes |
| 04/03/1979 | US4147981 Electrostatic voltmeter probe positioned on the outside of a housing and vibrated by a piezoelectric transducer within the housing |
| 03/06/1979 | US4143317 Multiple range peak reading voltmeter |
| 02/27/1979 | US4142144 Position detector |
| 02/27/1979 | US4142143 Lightning ground system attachable admittance testing instrument |
| 02/13/1979 | US4139818 Circuit means for collecting operational errors in IC chips and for identifying and storing the locations thereof |
| 02/13/1979 | US4139817 Impedance-switching connector |
| 01/16/1979 | US4135152 System for monitoring and measuring high voltage D.C. transmission line current |
| 01/02/1979 | US4132947 Waveshape detector |
| 01/02/1979 | US4132116 Method for linearizing the characteristic curve of an electronic component and an apparatus for implementing the same |
| 12/26/1978 | US4131846 Meter control circuit |
| 12/05/1978 | US4128807 Multi-dial electric meter register |
| 11/21/1978 | US4126825 Electronic current transducer for high voltage transmission lines |
| 10/17/1978 | US4121154 Alternating current potential measuring device |
| 10/17/1978 | US4121095 Optical receiver |
| 10/17/1978 | CA1040705A1 Direct current measuring system for rectifiers |
| 09/26/1978 | US4117399 Method and apparatus for measuring electric quantities by using light converters |
| 09/12/1978 | US4114094 Long scale display |
| 09/12/1978 | US4114087 Magnetic or electric measuring devices |
| 09/05/1978 | US4112473 Apparatus for determining a d-c potential in metal-encapsulated high voltage switching installations and equipments |
| 09/05/1978 | US4112362 Method for the nondestructive testing of voltage limiting blocks |