| Patents for G01R 5 - Instruments for converting a single current or a single voltage into a mechanical displacement (553) |
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| 11/28/1989 | US4884031 Method and apparatus for charge distribution analysis |
| 11/22/1989 | CN1037397A Movable core measuring instrument |
| 11/07/1989 | US4879510 Electrical indicator having an optical position encoder |
| 11/02/1989 | EP0339189A1 Current transformer for electric energy meter and method of making the transformer |
| 10/03/1989 | US4871993 Self-diagnostic apparatus for vehicle meter |
| 09/19/1989 | US4868508 Trouble detecting circuit for resistive sensor type indicator |
| 09/12/1989 | US4866376 Cross-oil instrument having testing apparatus for vehicular sensor disconnection indication |
| 07/19/1989 | EP0324679A2 Feromagnetic measuring device |
| 07/12/1989 | CN2041045U Threading type magnetoelectric dc ammeter |
| 07/04/1989 | US4845424 Rotary displacement motor |
| 06/20/1989 | US4841238 Gauge driving system |
| 05/31/1989 | CN2038632U Current meter with double pointer for monitoring leakage current |
| 05/30/1989 | US4835461 Microdeflector probe for electrostatic voltmeter |
| 05/30/1989 | US4835460 Display device of the galvanometric or logometric type, including a control circuit in form of an integrated circuit chip |
| 05/02/1989 | US4827210 Cross-coil moving-magnet measuring instrument |
| 05/02/1989 | US4827209 Instrument with crossed-coil type movable magnet |
| 04/12/1989 | EP0311092A2 Electrode-less detector |
| 04/11/1989 | US4820990 For sensing and quantifying |
| 03/21/1989 | US4814695 Measurement method for an electrical signal, series-parallel negative-feedback measuring circuit, as well as use of the method of the measuring circuit for measuring voltage sources with very-high-ohmage internal impedances |
| 03/15/1989 | CN1031764A Crossed coil moving-magnet meter |
| 03/14/1989 | US4812749 Bimetallic indicator |
| 03/08/1989 | EP0306194A2 Instrument with crossed-coil type movable magnet |
| 01/17/1989 | US4799047 Liquid level detecting and indicating system with coil type measuring device |
| 01/11/1989 | EP0298411A2 Self diagnostic apparatus for vehicle meter |
| 01/04/1989 | CN2030326U High-resistance thermostatic trough with small volume and low energy consumption |
| 08/17/1988 | CN87211806U Electrostatic oscilliscope galvanometer |
| 07/13/1988 | EP0274257A1 Gauge driving system |
| 06/15/1988 | EP0271397A1 Indicating device with a coil, and pivoting equipment of the galvanometer or logometer type |
| 06/14/1988 | US4751456 Arrangement for or in moving iron or moving coil instruments |
| 05/31/1988 | US4748406 Circuit arrangement for controlling a rotary-magnet measuring instrument |
| 04/06/1988 | EP0262264A1 Indicating instrument |
| 03/23/1988 | CN87210512U Electro-magnetic type meter for dc current and power |
| 03/23/1988 | CN87105409A Exciter for internal magnet type of meter |
| 02/17/1988 | EP0255961A2 Bimetallic indicator |
| 02/16/1988 | USRE32604 Electric indicator with return-to-zero feature and compensating coil to cancel the return-to-zero feature during measurement |
| 02/16/1988 | US4724601 Method of manufacturing a return-to-zero gauge |
| 02/03/1988 | EP0255143A2 Trouble detecting circuit for resistive sensor type indicator |
| 12/01/1987 | US4710706 Electrical measuring meter and method including a calibrating element |
| 07/28/1987 | US4683436 Surface potential electrometer and image forming apparatus using the same |
| 07/22/1987 | CN85205570U Geomagnetic universal electric meter |
| 07/02/1987 | DE3545416A1 Core magnet arrangement, particularly for moving coil measuring instruments, and method for producing core magnets suitable for this purpose |
| 06/10/1987 | CN86204517U Universal meter with indicatio-keeping unit |
| 04/21/1987 | US4659180 Method of mounting galvanometer and means for mounting same |
| 04/09/1987 | DE3535526A1 Pointer-type measuring instrument, particularly moving-iron measuring instrument and method for producing it |
| 04/08/1987 | EP0217147A1 Circuit arrangement for feeding signals to a rotating magnet measuring unit |
| 04/08/1987 | EP0216988A1 Analog panel meter mechanism |
| 03/24/1987 | CA1219635A1 Device and method for sensing electric current in a conductor |
| 12/30/1986 | US4633174 Crossed-coil rotating-magnet measuring instrument |
| 12/03/1986 | EP0203369A1 Arrangement for or in moving iron or moving coil instruments |
| 09/30/1986 | US4614908 Microdeflector probe for electrostatic voltmeters |
| 08/27/1986 | EP0192063A2 Movement for cross-coil instrument with rotary magnet |
| 07/30/1986 | CN85202738U Current transformer with no excitating-current |
| 01/14/1986 | US4564806 Taut band instrument having accurate taut band positioning means |
| 09/24/1985 | CA1194126A1 Electric indicator with return-to-zero feature |
| 02/27/1985 | EP0133446A1 Moving crossed coil instrument |
| 01/29/1985 | US4496902 Taut band type instrument suitable for automatical assembly |
| 01/08/1985 | US4492920 Electric indicator with return-to-zero feature and compensating coil to cancel the return-to-zero feature during measurement |
| 09/13/1984 | WO1984003565A1 Method for measuring an electric signal, series/parallel feed-back measuring circuit and application of said method or measuring circuit to measure voltage sources having a very high ohmic inner impedance |
| 09/12/1984 | EP0118396A1 Measuring process for electric signals using a series-parallel feed-back circuit, and application of this process or circuit to the measuring of voltage sources with extremely high internal impedances |
| 07/18/1984 | EP0113659A1 Method of mounting galvanometer mirror |
| 06/20/1984 | EP0111096A2 Electrical meter |
| 02/21/1984 | US4433297 Time averaged amplitude comparison electrometer |
| 01/18/1984 | EP0098780A2 Analog panel meter mechanism |
| 11/15/1983 | US4415855 Combination analog-digital indicator |
| 09/07/1983 | EP0087985A1 Electrically heatable differential thermal expansion devices and/or methods of making the same and/or instruments using the said devices |
| 03/22/1983 | CA1143438A2 Device for measuring and indicating changes in resistance of a living body |
| 02/01/1983 | US4371834 Device for measuring the frequency of an electrical current representative of a variable quantity |
| 01/25/1983 | US4370615 High speed temperature controlled electrometer |
| 01/25/1983 | US4370613 Galvanometer with molded outer layer under hoop stress |
| 01/11/1983 | US4367948 Surface potential electrometer and image forming apparatus using the same |
| 01/04/1983 | CA1138933A1 Adjustable spring regulator for setting indicating instrument pointer |
| 01/04/1983 | CA1138932A1 Device for measuring and indicating changes in resistance of a living body |
| 12/14/1982 | CA1137560A1 Means for adjusting the zero point setting of a meter |
| 12/14/1982 | CA1137559A1 Electrical current indicating meter |
| 12/14/1982 | CA1137558A1 Shielded electrical current indicating meter |
| 11/30/1982 | CA1136707A1 Magnetic system for electrical current indicating meter |
| 11/09/1982 | CA1135339A1 Digital frequency measuring circuitry |
| 10/20/1982 | EP0062759A1 Crossed coil type instrument with pivoting magnet |
| 06/15/1982 | US4335351 Moving magnet electrical meter with single pivot pin for the moving magnet and a fixed return magnet |
| 05/25/1982 | US4331916 Meter movement having reinforced armature assembly |
| 05/18/1982 | US4330747 Measuring mechanism for wide-angle moving coil systems and method for its assembly |
| 04/21/1982 | EP0049754A1 High speed temperature controlled electrometer |
| 03/30/1982 | CA1120986A1 Positioning means for limited rotation electric motor |
| 03/09/1982 | CA1119698A1 Thermoelectric metal sorter |
| 02/02/1982 | US4314146 Analog display device |
| 01/12/1982 | US4310800 Digital frequency measuring circuitry |
| 11/03/1981 | CA1111931A1 Method and apparatus for driving a gage |
| 09/22/1981 | US4291268 Apparatus for driving a deflecting coil type meter |
| 09/22/1981 | CA1109523A1 Limited rotation motor |
| 08/25/1981 | US4286212 Variable signal generator for galvanometer exhibiting hysteresis |
| 06/30/1981 | US4276511 Magnetic systems for long scale electrical meter with multiple side coil sensing |
| 05/26/1981 | US4270090 D.C. Electrostatic voltage follower having ion-coupled probe |
| 05/20/1981 | EP0028878A1 Digital frequency measuring circuitry |
| 03/24/1981 | US4258317 Combination analog-digital indicator |
| 03/17/1981 | CA1097598A1 Pen recorder driving mechanism |
| 02/24/1981 | US4253062 Shielded electrical current indicating meter |
| 02/17/1981 | US4251771 Magnetic system for electrical current indicating meter |
| 01/20/1981 | CA1094231A1 Detectors of parameters adapted to act on the force of attraction between an electret and an electrode |
| 01/07/1981 | EP0021181A1 Measuring instrument with a magnetic rotor |
| 01/06/1981 | CA1093156A1 Compact moving coil meter |