| Patents for G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286) |
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| 04/12/1988 | US4737706 Capacitance measuring circuit |
| 04/12/1988 | US4737705 Linear position sensor using a coaxial resonant cavity |
| 04/06/1988 | EP0262860A2 Digital signal analysis by transformation to vector domain |
| 04/05/1988 | US4736157 Wide-range resistance monitoring apparatus and method |
| 03/30/1988 | EP0261828A1 Microwave network analyser |
| 03/30/1988 | EP0261227A1 Capacitive sensor and metal detector for detecting concealed objects. |
| 03/30/1988 | CN87104495A Device |
| 03/23/1988 | CN86106558A Grid displacement sensor of capacity type |
| 03/23/1988 | CN86106551A Location sighting device of capacity type in grid shape |
| 03/22/1988 | US4733173 Electronic component measurement apparatus |
| 03/22/1988 | US4733166 Apparatus for measuring the moisture content of moving materials |
| 03/22/1988 | US4733165 Multimode resonance chamber and method of determining an equivalent single mode relaxation response |
| 03/16/1988 | EP0259501A1 Method of non-destructive quality control of carbon articles |
| 03/16/1988 | CN86105996A High voltage digital megohma meter with self-selected measuring range |
| 03/15/1988 | USRE32625 Dynamic testing of electrical conductors |
| 03/10/1988 | WO1988001747A1 Capacitor array sensors tactile and proximity sensing and methods of use thereof |
| 03/08/1988 | US4729385 Probe and method of use for detecting abnormal tissues |
| 03/03/1988 | DE3629534A1 Method for measuring impedance by coherent sampling |
| 03/02/1988 | EP0257724A2 Three-electrode sensor for phase comparison and pulse phase adjusting circuit for use with the sensor |
| 03/02/1988 | CN86204589U Simple and easy testing instrument for inductance and capacitance |
| 03/01/1988 | US4728932 Detector for capacitive sensing devices |
| 03/01/1988 | US4728931 Charge redistribution capacitance detection apparatus |
| 03/01/1988 | US4728884 Infinite dynamic range phase detector |
| 03/01/1988 | US4728882 Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium |
| 02/25/1988 | WO1988001390A1 Contact resistance measuring device and measuring needle therefor |
| 02/25/1988 | DE3726708A1 Arrangement for testing the function of a measuring or monitoring device |
| 02/24/1988 | EP0256341A1 Fast short-circuit detector device |
| 02/24/1988 | EP0256324A1 Conductivity measuring circuit |
| 02/23/1988 | US4727330 Method and apparatus for measuring the electrical conductivity of a subject |
| 02/17/1988 | EP0255838A1 Signal processing system |
| 02/16/1988 | US4725785 Directional potential analyzer method and apparatus for detecting and locating leaks in geomembrane liners |
| 02/16/1988 | US4725778 Field testing insulation between two conducting bodies subject to leakage |
| 02/16/1988 | US4725771 Method and apparatus for frequency adjustment of monolithic crystal filters |
| 02/11/1988 | DE3626034A1 Method for automatically testing pot-core coils |
| 02/09/1988 | US4724376 Low voltage AC ohmeter |
| 02/09/1988 | US4723908 Dielectric probe; method and apparatus including its use |
| 02/02/1988 | CA1232352A1 Capacitive sensing employing thin film inductors |
| 01/28/1988 | WO1988000709A1 Transmitter with vernier measurement |
| 01/27/1988 | EP0253822A1 Wrist strap ground monitor |
| 01/26/1988 | US4721957 Ground shift compensated parameter measurement system |
| 01/26/1988 | US4721903 Probe and method for electrically contacting surfaces with protective coatings |
| 01/26/1988 | US4721901 Method and apparatus for reflection coefficient measurements |
| 01/26/1988 | CA1231853A1 Moisture measuring method and apparatus |
| 01/20/1988 | EP0253746A1 Method and apparatus for dynamic testing of thin-film conductor |
| 01/20/1988 | CN87208517U 导体电阻测量仪 Conductor resistance measuring instrument |
| 01/19/1988 | US4720822 High frequency signal measurement method and apparatus |
| 01/19/1988 | US4720677 R. F. triaxial directional bridge |
| 01/13/1988 | CN87102057A Capacitance type position-change vibration measuring instrument |
| 01/12/1988 | US4719413 For determining the quality of signal transmission through an array |
| 01/12/1988 | US4719409 Digital signal output capacitance sensor displacement gauging system |
| 01/12/1988 | US4719407 Automated search apparatus for locating leaks in geomembrane liners |
| 01/12/1988 | US4718862 Two-way electrical apparatus handle |
| 01/07/1988 | EP0250799A2 Asynchronous machine control process |
| 01/07/1988 | EP0250561A1 Method and apparatus for detecting and locating leaks in geomembrane liners |
| 01/06/1988 | CN87102694A Method for measuring the capacity of a energy-storing capacitor |
| 12/31/1987 | CN87201131U Variable active three-terminal capacitance and loss standard |
| 12/29/1987 | US4716487 Apparatus for monitoring motor winding leakage |
| 12/29/1987 | US4716361 Capacitance measuring method and apparatus |
| 12/29/1987 | US4716360 Moisture detector apparatus and method |
| 12/29/1987 | US4716306 Circuit for detecting variation of resistance of a variable-resistance element |
| 12/23/1987 | EP0249980A2 Method of detecting conductive material contained in glass fiber and detecting apparatus therefor |
| 12/15/1987 | US4713782 Method and apparatus for measuring a transfer function |
| 12/12/1987 | CN86210516U Resistance measuring device with large measuring range |
| 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 | EP0248133A1 Earth testing means for an electric fence network |
| 12/08/1987 | US4712107 Capacitive displacement transducer for generating electrical signals corresponding to single-valued functions |
| 12/05/1987 | CN86210102U Microcomputerized battery internal resistance tester |
| 12/03/1987 | DE3725077A1 Verfahren zur bestimmung elektromagnetischer stoffeigenschaften und eigenschaften von wellenleitern und wellenleiteruebergaengen Method for the determination of electromagnetic material properties and characteristics of waveguides and wellenleiteruebergaengen |
| 12/03/1987 | DE3718111A1 Behruehungsfreier leitfaehigkeitsfuehler Behruehungsfreier leitfaehigkeitsfuehler |
| 12/02/1987 | EP0247157A1 Adaptive impedance mismatch detector system |
| 12/02/1987 | CN87200199U Electronic digital type meg-ohmmeter |
| 12/01/1987 | USH395 Process for measuring the electrical properties of liquids and granular substances |
| 12/01/1987 | US4710751 Ground fault monitor circuit |
| 12/01/1987 | US4710701 Capacitive cell for continuous measurement of the linear mass of textile products |
| 12/01/1987 | US4710700 Method of measuring orientation or dielectric characteristic of dielectric sheets or webs |
| 12/01/1987 | US4710550 Method of using a dielectric probe to monitor the characteristics of a medium |
| 11/24/1987 | US4709386 Subscriber line monitoring circuit |
| 11/24/1987 | US4709225 Self-calibration method for capacitors in a monolithic integrated circuit |
| 11/24/1987 | US4709164 Circuit for the continuous watching of the grounding resistance of electrical appliances |
| 11/19/1987 | EP0156811B1 Apparatus and method for determining the value of a capacitance |
| 11/12/1987 | DE3715099A1 Steuervorrichtung Control device |
| 11/12/1987 | DE3615550A1 In-circuit impedance measurement |
| 11/11/1987 | EP0245116A2 Apparatus and method for measuring resistivity |
| 11/10/1987 | US4706203 Capacitive gauging method and apparatus |
| 11/10/1987 | US4706015 Method and circuit for reducing contact resistance of the potential probes of a four-point-probe in contact with a III-V compound semiconductor wafer |
| 11/07/1987 | CN86207392U Multipurpose tester capable of extending the application range of a universal meter |
| 11/05/1987 | WO1987006711A1 Measurement circuit |
| 11/04/1987 | EP0244053A2 Dual channel time domain reflectometer |
| 11/03/1987 | US4704573 Impedance mismatch detector |
| 10/27/1987 | US4703433 For analyzing the response of a device under test |
| 10/27/1987 | US4703259 Forward and reflected power measurement and display |
| 10/27/1987 | US4703252 Apparatus and methods for resistivity testing |
| 10/21/1987 | EP0241903A2 Ground fault detector for high-voltage DC power supplies |
| 10/21/1987 | CN86102187A High frequency inductance and capacitance measuring instrument |
| 10/20/1987 | US4701713 Oil and fuel contamination monitoring system |
| 10/14/1987 | EP0241065A2 Harmonic oscillator for measuring physical parameters |
| 10/14/1987 | EP0240875A1 Testing device for measuring the contact resistance of an electrical connector between an energy source and an electrical apparatus |
| 10/13/1987 | US4700137 High-frequency magnetic field generator/detector |
| 10/13/1987 | US4700129 Phase measurement apparatus with automatic calibration |