| Patents for G05F 7 - Regulating magnetic variables (169) | |
|---|---|
| 03/1998 | |
| 03/12/1998 | DE19702831A1 Appliance for compensation of external field interference with main magnetic field in nuclear magnetic resonance (NMR) tomography |
| 03/12/1998 | CA2189408A1 Magnetic actuator with long travel in one direction |
| 02/1998 | |
| 02/24/1998 | US5721714 Method and apparatus for controlling bias levels in a magneto-optical recording device |
| 01/1998 | |
| 01/07/1998 | EP0817183A2 Method and apparatus for controlling bias levels in a magneto-optical recording device |
| 12/1997 | |
| 12/09/1997 | US5696575 Digital flux gate magnetometer |
| 09/1997 | |
| 09/09/1997 | US5666333 Biasing level controller for magneto-optical recording device |
| 06/1997 | |
| 06/19/1997 | DE19546689A1 Electrical generator stator permanent-magnet type rotor insertion method |
| 05/1997 | |
| 05/20/1997 | US5631561 Arrangement for measuring and controlling the basic field of an NMR tomography apparatus |
| 04/1997 | |
| 04/02/1997 | CN2251159Y Coal feeding chain rupture tester for boiler |
| 12/1996 | |
| 12/18/1996 | CN1138192A Method and apparatus for controlling bias levels |
| 10/1996 | |
| 10/09/1996 | EP0736867A1 Method and apparatus for controlling bias levels |
| 09/1996 | |
| 09/26/1996 | DE19510142A1 Magnetic resonance device with stray magnetic field compensation |
| 06/1996 | |
| 06/05/1996 | DE19548217A1 Optical beam deflection method |
| 12/1995 | |
| 12/07/1995 | DE4419061A1 System for measuring background field in NMR tomograph |
| 10/1995 | |
| 10/11/1995 | EP0676901A2 Magnetic field detection circuit |
| 08/1995 | |
| 08/15/1995 | US5442290 MRI gradient drive current control using all digital controller |
| 06/1995 | |
| 06/28/1995 | CN2202331Y Controllable magnetic disk |
| 11/1994 | |
| 11/29/1994 | US5369355 Compensation circuit for transformer linearization |
| 11/22/1994 | US5367259 Active shielding device based on SQUID and feedback therefrom for the reduction of environmental magnetic noise |
| 03/1994 | |
| 03/10/1994 | DE4326054A1 MRI gradient driver current fully-digital control - comparing digitised analog flux measurement signal with digital flux demand signal to produce digital coil current demand signal |
| 03/02/1994 | EP0273961B1 Method and apparatus for controlling the amount of magnetic flux imparted to a ferrimagnetic load |
| 01/1994 | |
| 01/20/1994 | WO1994001814A1 Enhanced transformer |
| 12/1993 | |
| 12/29/1993 | EP0576381A1 Method and device for the servo-control of a magnetic field |
| 07/1993 | |
| 07/06/1993 | US5225999 Magnetic environment stabilization for effective operation of magnetically sensitive instruments |
| 06/1993 | |
| 06/22/1993 | US5221892 Flux compression transformer |
| 01/1993 | |
| 01/12/1993 | US5179315 Circuit for the compensation of the horizontal component of the earth's magnetic field for a color picture tube of a high-resolution monitor |
| 12/1992 | |
| 12/10/1992 | DE4217302A1 Screened chamber with active screening for medical measuring appts. - measures magnetic field using induction coil around room and applies appropriate compensation current to coils to cancel LF interference field |
| 11/1992 | |
| 11/26/1992 | DE4116527A1 Large vol. reduction appts. for magnetic fields, pref. of low frequency - measures magnitude, direction and time variation of field and generates compensating field accordingly |
| 11/19/1992 | EP0514027A2 Magnetic noise reducing device for a squid magnetometer |
| 10/1992 | |
| 10/21/1992 | EP0284615B1 Magnetic material biasing method and apparatus |
| 06/1992 | |
| 06/16/1992 | CA1303667C Elevator motor control |
| 01/1992 | |
| 01/09/1992 | DE4118126A1 Actively suppressing magnetic noise in bio-magnetic signals - subtracting weighted correction values from each signal |
| 12/1991 | |
| 12/11/1991 | EP0460757A2 Display device |
| 11/1991 | |
| 11/14/1991 | DE4014864A1 Protective screening against radiation from earth magnetic field - uses electronically controlled magnetic coil with core e.g. on floor of building |
| 09/1990 | |
| 09/20/1990 | DE4006542A1 Magnetic field correction device for CRT - has correction coil supplied with decaying AC signal and magnetic field dependant DC signal |
| 07/1990 | |
| 07/11/1990 | EP0377284A2 Improved method and apparatus for regulating transmembrane ion movement |
| 10/1989 | |
| 10/31/1989 | US4877273 Operation control system for internal combustion engines |
| 08/1989 | |
| 08/29/1989 | US4862085 Method of regulating the magnetic field delivered by a resistive magnet, a resistive magnet system using this method and an installation for forming images by nuclear magnetic resonance incorporating such a system |
| 08/29/1989 | US4862014 Method and apparatus for controlling the phase of signal driving a ferrimagnetic load |
| 08/09/1989 | EP0205469B1 Regulation of a magnet field |
| 12/1988 | |
| 12/13/1988 | US4791346 Elevator motor control |
| 11/1988 | |
| 11/01/1988 | US4782437 Magnetic material biasing method and apparatus |
| 10/1988 | |
| 10/05/1988 | EP0284615A1 Magnetic material biasing method and apparatus. |
| 07/1988 | |
| 07/13/1988 | EP0273961A1 Method and apparatus for controlling the amount of magnetic flux imparted to a ferrimagnetic load. |
| 03/1988 | |
| 03/10/1988 | WO1988001791A1 Magnetic material biasing method and apparatus |
| 01/1988 | |
| 01/14/1988 | WO1988000370A1 Method and apparatus for controlling the amount of magnetic flux imparted to a ferrimagnetic load |
| 12/1987 | |
| 12/29/1987 | US4715523 Electromagnetic power drive for a friction welding machine |
| 10/1987 | |
| 10/28/1987 | CN86102880A Multipath magnetic flow ratio control method and its application |
| 07/1987 | |
| 07/28/1987 | US4683434 Method for homogenizing the field of a magnetic coil and apparatus therefor |
| 03/1987 | |
| 03/24/1987 | US4652826 Apparatus and process for generating a homogeneous magnetic field |
| 12/1986 | |
| 12/30/1986 | EP0205469A1 Regulation of a magnet field. |
| 11/1986 | |
| 11/12/1986 | EP0200891A1 Method and apparatus to homogenize the field of a magnet coil |
| 09/1986 | |
| 09/16/1986 | US4612596 Circuit for stabilizing electromagnet coil current of a magnetic resonance imaging device |
| 08/1986 | |
| 08/19/1986 | US4607311 Power circuit for electromagnetic actuator |
| 07/1986 | |
| 07/03/1986 | WO1986003857A1 Regulation of a magnet field |
| 04/1985 | |
| 04/16/1985 | US4511978 Device for determining a parameter signal for a voltage-fed load |
| 12/1984 | |
| 12/04/1984 | US4486703 Boost voltage generator |
| 05/1984 | |
| 05/22/1984 | US4450427 Contactor with flux sensor |
| 04/1984 | |
| 04/18/1984 | EP0105780A2 Boost voltage generator |
| 03/1984 | |
| 03/13/1984 | US4437136 Electromagnet |
| 02/1984 | |
| 02/28/1984 | US4434450 Controlled flux contactor |
| 11/1983 | |
| 11/22/1983 | US4417145 Apparatus for controlling magnetic field intensity |
| 01/1983 | |
| 01/05/1983 | EP0068394A1 Device for determining the operating value of a load, especially the flux of a rotating field machine, from the integral of the load voltage and, optionally, the load current |
| 08/1982 | |
| 08/24/1982 | US4346340 Method and means for controlling the flux density in the core of an inductor |
| 02/1982 | |
| 02/09/1982 | US4315216 Imaging systems |
| 11/1981 | |
| 11/10/1981 | US4300096 Imaging systems |
| 08/1981 | |
| 08/18/1981 | US4284950 Imaging systems |
| 11/1980 | |
| 11/04/1980 | CA1089014A1 Nmr field frequency lock system |
| 08/1978 | |
| 08/29/1978 | US4110681 NMR field frequency lock system |
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