| Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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| 07/02/1985 | US4527126 AC parametric circuit having adjustable delay lock loop |
| 07/02/1985 | US4527121 Short-circuit-protected evaluation circuit of high stability for variable inductance transducers |
| 07/02/1985 | US4527116 Process and device for system characterization by spectral analysis |
| 06/25/1985 | US4525814 Leakage testing cable connector network |
| 06/25/1985 | CA1189569A1 Method and apparatus for single pulse electromagnetic measurements of soil conductivity and dielectric constant |
| 06/04/1985 | US4521728 Method and a six port network for use in determining complex reflection coefficients of microwave networks |
| 05/28/1985 | US4519253 Reactance measurement circuit with enhanced linearity |
| 05/21/1985 | CA1187555A1 Protective relaying methods and apparatus |
| 05/15/1985 | EP0141255A1 Method for measurement by digital spectrum analyzer |
| 05/15/1985 | EP0141080A1 Evaluation circuits for passive measuring detectors |
| 05/14/1985 | US4517547 Water-in-fuel sensor circuit and method |
| 05/14/1985 | US4516865 Resistance thermometer |
| 05/08/1985 | EP0139638A1 Insulation analyzer and method. |
| 05/07/1985 | US4516077 Apparatus for and a method of measuring the intrinsic time constant of liquids |
| 05/02/1985 | EP0139109A1 Device to determine time delay variations |
| 04/30/1985 | US4514680 For detecting knots in lumber moving in the relation to apparatus |
| 04/30/1985 | US4513608 Moisture sensing and control device |
| 04/24/1985 | EP0138613A2 Method and apparatus for monitoring suitability of a transmission path for transmission of digital data signals |
| 04/24/1985 | EP0138157A1 Static leonard apparatus |
| 04/23/1985 | US4513248 Fluid conductivity sensor |
| 04/16/1985 | US4511837 Measuring system for measuring the variation of the capacitive impedance of a bearing installed in a housing |
| 04/09/1985 | US4510440 Methods and apparatus for frequency response analysis |
| 04/09/1985 | US4510436 For measuring a property related to electric properties of sample fluid |
| 04/02/1985 | CA1184975A1 Frequency compensator for a current-comparator capacitance bridge |
| 03/28/1985 | WO1985001356A1 Apparatus and method for determining the value of a capacitance |
| 03/27/1985 | EP0134908A1 Precision nondestructive testing of metals |
| 03/27/1985 | EP0134783A1 Method and apparatus for measuring transmission and/or reflection coefficients to amplitude and phase of an object i.e. microwave components |
| 03/26/1985 | US4507602 Measurement of permittivity and permeability of microwave materials |
| 03/19/1985 | US4506209 Tracking impedance measuring system |
| 03/12/1985 | CA1183899A1 Ground fault detector apparatus |
| 03/05/1985 | US4503384 Microwave probe for measurement of dielectric constants |
| 03/05/1985 | CA1183336A1 Method and means for controlling the manufacture of windings for inductive apparatus |
| 02/26/1985 | US4502009 Apparatus adapted for single pulse electromagnetic measurements of soil conductivity and dielectric constant |
| 02/26/1985 | CA1183209A1 Telephone cable splicers test set and method of testing |
| 02/05/1985 | US4498044 Method and circuitry for measuring the impedance of a sensor |
| 02/05/1985 | US4498042 Mat testing apparatus |
| 02/05/1985 | US4497699 Method of treating foil for electrolytic capacitors |
| 02/05/1985 | CA1182173A1 Conductive fluid probe powering means |
| 01/29/1985 | US4497030 N-way summing network characterization system |
| 01/29/1985 | US4496906 Liquid conductivity monitor |
| 01/23/1985 | EP0131568A1 Electrolysis test station terminal and support |
| 01/16/1985 | EP0131024A1 Capacitance measuring circuit. |
| 01/15/1985 | US4494065 Electric capacity measurement of erratically shorted capacitors |
| 01/15/1985 | CA1181132A1 Reactance measurement circuit |
| 01/08/1985 | US4493039 Apparatus and method for image reproduction of materials using their magnetic and electric properties |
| 01/08/1985 | CA1180759A1 Conductivity detector and method |
| 01/01/1985 | US4491798 System for measuring conductivity of a liquid |
| 01/01/1985 | US4491797 Test contact resistance of dry circuit contacts |
| 01/01/1985 | US4491783 Apparatus for measuring noise factor and available gain |
| 12/18/1984 | US4489271 Reflection coefficient measurements |
| 12/11/1984 | US4488168 Vector scope |
| 12/06/1984 | WO1984004818A1 Precision nondestructive testing of metals |
| 12/05/1984 | EP0126907A2 Temperature compensated semiconductor-type pressure transducer |
| 12/05/1984 | EP0126846A2 Inductive sensor |
| 11/20/1984 | US4483629 Dynamic testing of electrical conductors |
| 11/13/1984 | US4482967 Ionic conductivity detector |
| 11/13/1984 | US4482860 Capacitance measurement probe |
| 11/08/1984 | WO1984004386A1 Reactance measurement circuit with enhanced linearity |
| 11/06/1984 | US4481465 Capacitive measuring transducer |
| 11/06/1984 | US4481464 Apparatus for measuring time variant device impedance |
| 10/24/1984 | EP0122366A1 Apparatus for detecting ground fault in variable-voltage variable-frequency power system |
| 10/23/1984 | US4479087 Standing wave ratio and power meter |
| 10/16/1984 | US4477772 Frequency compensator for a current-comparator capacitance bridge |
| 10/16/1984 | US4477768 Leakage current detecting structure |
| 10/02/1984 | US4475083 Method and apparatus for electromagnetically measuring parameters of electrically conductive high temperature materials |
| 10/02/1984 | CA1175254A1 Linear capacitive sensor system |
| 09/27/1984 | WO1984003772A1 Insulation analyzer and method |
| 09/25/1984 | US4473796 Resistance and capacitance measuring device |
| 09/18/1984 | US4472676 Leakage impedance measuring system including a superimposed measuring voltage having a frequency differing slightly from system frequency |
| 09/11/1984 | US4471295 Device for detecting the variation of a capacitive impedance having dielectric consisting of a lubricant |
| 09/11/1984 | US4470300 Apparatus for and method of determining a capacitance |
| 09/05/1984 | EP0117499A2 Circuit arrangement for measuring and detecting a maximum voltage output |
| 09/05/1984 | EP0117471A2 Electrical conductivity measuring probe |
| 09/04/1984 | US4470008 Capacitance sensor |
| 08/28/1984 | US4468611 Capacitive system for monitoring the dielectric properties of flowing fluid streams |
| 08/28/1984 | US4468610 Radio frequency apparatus for measuring moisture content of materials as a function of dielectric constant |
| 08/28/1984 | CA1173492A1 Gapless discharge counter for lightning arresters |
| 08/21/1984 | US4467272 Circuit for measuring inductance changes |
| 08/02/1984 | WO1984003001A1 Electrolysis test station terminal and support |
| 07/31/1984 | US4463308 R.F. Impedance determination |
| 07/19/1984 | WO1984002780A1 Capacitance measuring circuit |
| 07/18/1984 | EP0113549A1 Impedance sensor |
| 07/17/1984 | US4460866 Method for measuring resistances and capacitances of electronic components |
| 07/10/1984 | US4459541 Circuit for measuring capacitance |
| 07/04/1984 | EP0106843A4 Imrpoved inductance to frequency converter circuit. |
| 07/03/1984 | US4458202 Device for measuring local electric conductivity of low-temperature plasma |
| 07/03/1984 | US4458196 Method and apparatus for high speed resistance, inductance and capacitance measurement |
| 06/27/1984 | EP0112200A1 Accessory connectable to a multimeter for the measurement of earth resistances |
| 06/19/1984 | USRE31606 Digital ohmmeter with electrical continuity tester |
| 06/19/1984 | US4455613 Technique of reconstructing and displaying an analog waveform from a small number of magnitude samples |
| 06/19/1984 | US4455531 Conductance probe for detection of immiscible liquids |
| 06/13/1984 | EP0096033A4 Insulation analyzer apparatus and method of use. |
| 06/12/1984 | US4454468 Switching device for the electrical measurement of reactive impedances and a measuring bridge using such a switching device |
| 06/12/1984 | US4454434 Calibration and status monitor comparator apparatus and method |
| 05/29/1984 | US4451782 Spectrum analyzer |
| 05/29/1984 | US4451781 Moisture tester |
| 05/22/1984 | US4450408 Low loss wide band front end for NMR receiver |
| 05/15/1984 | US4449188 Apparatus and method for controlling humidity |
| 05/08/1984 | CA1167107A1 Automatic im distortion test selector |
| 05/02/1984 | EP0107050A2 Signal generator for digital spectrum analyzer |