| Patents for G01R 5 - Instruments for converting a single current or a single voltage into a mechanical displacement (553) |
|---|
| 10/18/1994 | US5357190 Cross coil type indicator in which the wire of each coil is connected to a terminal by soldering |
| 07/13/1994 | CN1025453C Eddy current meter |
| 06/29/1994 | CN1025243C Eddy current meter |
| 05/24/1994 | US5315254 Method and apparatus for non-contact charge measurement |
| 05/17/1994 | US5313155 Driving apparatus for cross-coil type analog indicating instrument having reduced ripple |
| 04/13/1994 | CN2161927Y Moving-coil instrument core print seat |
| 03/01/1994 | US5291126 Pulse width modulation driving circuit for a cross coil meter |
| 02/09/1994 | CN2155570Y Curve and straight-line length measuring instrument |
| 01/18/1994 | US5280377 Beam scanning galvanometer with spring supported mirror |
| 01/05/1994 | DE4220519A1 Rotary magnet indicator for temp. measuring instrument display - applies trigonometric function from PWM control unit to first coil and complement of function to second coil to produce resultant field |
| 12/15/1993 | CN2149629Y Electric meter |
| 12/07/1993 | US5267526 Cross-coil type indicator |
| 09/22/1993 | CN1076525A Magnetic induction type electric meter |
| 09/14/1993 | US5243752 Process of manufacturing an instrumentation apparatus with curable internal magnets |
| 09/07/1993 | US5243292 Electrostatic measuring tuning fork and means for limiting mechanical amplitude thereof |
| 09/01/1993 | CN2141569Y Induction static electricity voltage meter |
| 08/24/1993 | US5239259 Moving magnet type indicating instrument combined with a counter mechanism |
| 08/12/1993 | DE4203698A1 Permanent magnet assembly for moving coil instrument - has composite core incorporating moulded magnetic plastic ring ensuring homogeneous flux distribution |
| 07/06/1993 | US5225770 Moving magnet galvanometers having a varied density winding distribution coil for a desired performance characteristic |
| 06/29/1993 | US5223791 Cross coil type indicating instrument having internally disposed engaging gears |
| 06/22/1993 | US5221933 Beam scanning galvanometer with low inertia mirror and magnet |
| 06/08/1993 | US5218291 Meter and meter driving system with indication fluctuation suppression and enhancement |
| 04/22/1993 | DE4233642A1 Crossed coil indicator instrument for vehicle revs counter or speedometer - has stop plate between upper and lower coils for setting pointer at null when no current is flowing |
| 03/24/1993 | CN2128740Y Light source apparatus for direct-current galvanometer |
| 03/18/1993 | DE4228210A1 Crossed-coil indicator instrument with coil pair wound on coil body - has magnetic rotor in centre or coil body, pin connectors on outer body periphery with wire coiling sections |
| 03/03/1993 | EP0529523A1 Multiple-meter driving apparatus |
| 02/16/1993 | US5187442 Method and apparatus for charge distribution analysis |
| 02/16/1993 | US5187364 Scanning device with waveform generator optimizer |
| 01/20/1993 | EP0523413A2 Beam scanning galvanometer with spring supported mirror |
| 01/14/1993 | DE4123309A1 Field strength measuring appts. - has two or more electrodes with rotating screening electrodes for maintaining total exposed area constant |
| 01/12/1993 | CA1312654C Mutual inductance current transducer, method of making, and electric energy meter incorporating same |
| 01/05/1993 | US5177631 Magnetic position sensor |
| 12/30/1992 | EP0520388A2 Magnetic position sensor |
| 12/30/1992 | EP0520387A2 Beam scanning galvanometer with low inertia mirror and magnet |
| 12/15/1992 | CA1311366C Bimetallic indicator |
| 11/12/1992 | DE4214323A1 Fahrzeug-tachometer Vehicle tachometer |
| 10/21/1992 | EP0509484A1 PWM modulation circuit for a cross-coil meter driver |
| 10/21/1992 | CN2119664U Internal magnetization type core structure of instrument, with adjustable field intensity |
| 10/15/1992 | DE3921895A1 Aerosol electrometer, aerosol sensor and probe for particle detection - has separator with mechanical filter inserted into electrometer using a holder and which collects aerosol |
| 09/30/1992 | EP0505826A1 Meter driving method |
| 09/10/1992 | DE4107546A1 Electromechanical measuring device for electrical appts. - with individual components interfitting to allow automated assembly |
| 09/08/1992 | US5146158 Externally adjustable stopper plate in a cross-coil type meter |
| 08/27/1992 | DE4205725A1 Torque motor or moving-magnet galvanometer - useful for optical scanner e.g. for guiding laser beam |
| 08/18/1992 | US5138968 Cross coil-shaped indicating instrument |
| 08/18/1992 | CA1306498C Moving magnet type meter |
| 08/11/1992 | US5138639 Pulse position measurement type meter-driving circuit capable of improving measurement accuracy |
| 07/22/1992 | EP0495438A1 Cross coil type indicating instrument |
| 07/15/1992 | CN2110230U Sensitive electronic pointer |
| 07/14/1992 | US5130895 Apparatus having rotary member |
| 07/01/1992 | CN2108929U Magnetic induction type electric meter |
| 06/23/1992 | US5124643 Mounting of a pointer to the rotor of an air core meter |
| 04/15/1992 | CN2101876U Wide-angle instrument head for vehicle |
| 04/15/1992 | CN2101875U Internal magnetic support for magnetoelectric series meter |
| 04/14/1992 | US5104759 Electrophotographic light-sensitive material |
| 04/08/1992 | CN2101241U Ship used meter |
| 03/31/1992 | CA1298350C Electrodeless detector |
| 03/25/1992 | CN2099976U Ultra-thin magnetoelectric kilowatt-hour meter |
| 03/10/1992 | US5095266 Cross-coil type indicating instrument |
| 03/03/1992 | US5093615 Movement for an instrument having an electromagnetic control arrangement |
| 02/19/1992 | CN2096763U Portable multipurpose electrostatic voltmeter |
| 02/05/1992 | EP0469808A1 Screened indicating instrument |
| 12/31/1991 | CA1293771C Instrument with crossed-coil type movable magnet |
| 11/13/1991 | CN1056170A Electromagnetic nd-fe-b electric meter |
| 10/29/1991 | US5061893 Mounting for the rotary magnet of a rotary magnet-ratio meter |
| 10/22/1991 | US5059934 Cross-coil rotary magnet device |
| 10/22/1991 | US5059916 Gauge driver for use with a remote sensor and having reduced offset potential response |
| 10/01/1991 | US5054009 Motor, in particular, for driving a clockwork |
| 08/14/1991 | EP0440979A1 Wide angle gauge driver with resistive sensor |
| 07/17/1991 | EP0436640A1 Method and apparatus for charge distribution analysis |
| 07/03/1991 | CN2080179U New measuring mechanism of megger |
| 05/21/1991 | US5017862 Air-core meter having improved bobbin design |
| 05/21/1991 | US5017861 Meter driving apparatus |
| 05/08/1991 | CN1012592B Movable core measuring instrument |
| 05/02/1991 | DE4033468A1 Indicator control circuit for vehicle, engine speed etc. - contains digitiser and digital filter with hysteresis |
| 04/30/1991 | US5012184 Adjustment of disposition of rotation axis in moving coil measuring instruments to correct for their non-ideal operation |
| 02/06/1991 | CN1011552B Crossed coil moving-magnet meter |
| 02/05/1991 | US4991098 Computer-based controller and bipolar PWM driver arrangement for air core gauge control |
| 01/09/1991 | CN1048454A Eddy current meter |
| 01/09/1991 | CN1048453A Eddy current meter |
| 01/02/1991 | EP0405010A2 Moving-magnet quotient-measuring instrument |
| 12/26/1990 | CN1048101A Mechanically operated memory device for measuring maximum electric current |
| 12/11/1990 | US4977369 Ferromagnetic measuring apparatus |
| 11/21/1990 | CN2066138U Rotary magnetic electric meter |
| 10/24/1990 | CN2064509U Current controlling meters |
| 09/05/1990 | EP0385628A2 Moving coil measuring instruments |
| 08/22/1990 | CN2060888U Popularized electric meter main part |
| 08/01/1990 | CN1009029B Exciter for internal magnet type of meter |
| 05/30/1990 | EP0370616A2 A control arrangement for an air core gauge |
| 05/29/1990 | US4929891 Exciting unit for internal magnet type meters |
| 05/22/1990 | US4928060 Driving circuit of a crossed-coil type instrument using digital data pulse production |
| 05/08/1990 | US4924178 Drive apparatus for a cross coil type meter |
| 04/05/1990 | WO1990003571A1 Method and apparatus for charge distribution analysis |
| 03/27/1990 | US4912398 Moving iron instrument |
| 03/06/1990 | US4906919 Moving magnet type meter |
| 02/28/1990 | EP0355263A2 Motor, in particular for driving a time piece |
| 02/28/1990 | EP0355262A2 Device with a cross-wound coil and a rotary magnet |
| 01/03/1990 | EP0349137A2 Moving magnet type meter |
| 12/26/1989 | US4890057 Instrument with crossed-coil type movable magnet |
| 12/12/1989 | US4887029 Mutual inductance current transducer, method of making and electric energy meter incorporating same |
| 11/28/1989 | US4884058 Combination indicator apparatus for automotive vehicle |