Patents
Patents for G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887)
07/1991
07/02/1991US5028871 Magnetic resonance imaging system
07/02/1991US5028869 Process and apparatus for the nondestructive measuring of magnetic properties of a test body, by detecting a tangential magnetic field and deriving harmonic components thereof
07/02/1991US5027819 Measurement of visually induced biomagnetic responses
06/1991
06/27/1991WO1991009322A1 R.f. pulse cascade for generating nmr spectra
06/27/1991WO1991009321A1 Alternate method of fourier transform nmr data acquisition
06/27/1991WO1991009320A1 Process and device for testing a hall sensor system
06/27/1991DE3942547A1 Vehicle ABS or ASR physical value measuring - by using fibre=optic sensor subjected to magnetic field to use its Faraday effect
06/26/1991EP0434289A1 Motion detector
06/26/1991EP0434247A2 Shield for a magnet
06/26/1991EP0433482A1 Squid sensor apparatus with inductive coupling of an input signal into a squid
06/26/1991EP0433312A1 Carrier system and method for enhancement of magnetic resonance imaging
06/26/1991CN1052554A Magnetic resonance imaging apparatus with artefact reduction
06/26/1991CN1052548A Swept frequency eddy current for measuring coating thickness
06/26/1991CN1013001B Electromagnetic array profiling survey method
06/26/1991CN1012997B Apparatus for detection of cancer using nuclear magnetic resonance
06/25/1991US5027072 Alternate method of Fourier transform NMR data acquisition
06/25/1991US5027071 Method of, and apparatus for, NMR slice selection
06/25/1991US5027070 MR imaging system and method
06/25/1991US5027069 Circuit arrangement for a gradiometer having superconducting quantum interferometer (SQUID) for measuring low-intensity biomagnetic fields
06/25/1991US5027068 Apparatus for measuring thickness of a non-metallic layer on a ferromagnetic base material
06/25/1991US5026682 Superconducting quantum interference device
06/25/1991US5025788 Method of acquiring NMR angiograms in selected flow component directions
06/22/1991WO1991010128A1 Method for predicting atherosclerotic risk
06/22/1991CA2071638A1 Method for predicting atherosclerotic risk
06/20/1991DE3941473A1 Verfahren und vorrichtung zur ueberpruefung eines hall-sensorsystems Method and apparatus for inspecting a hall-sensor systems
06/19/1991EP0433002A2 Magnetic resonance imaging system including active shield gradient coils
06/19/1991EP0432953A2 A system for sensing and amplifying magnetic field signals
06/19/1991EP0432890A2 Magnetoresistive sensor
06/19/1991EP0432850A1 Magnetic resonance imaging apparatus with artefact reduction
06/19/1991EP0432750A2 Apparatus for generating uniform magnetic field using small diameter spherical metallic members provided on magnetic poles
06/19/1991EP0432241A1 Probe head for whole-body nuclear-resonance tomography or local in vivo nuclear-resonance spectroscopy.
06/19/1991EP0386054A4 Magnetic field homogenization in nmr spectroscopy
06/19/1991CA2021599A1 Shield for a magnet
06/18/1991US5025217 Method of and device for eddy current compensation in MR apparatus
06/18/1991US5025216 Magnetic resonance imaging of short T2 species
06/18/1991US5024229 Resonators for magnetic resonance imaging
06/15/1991CA2021600A1 Swept frequency eddy current system for measuring coating thickness
06/13/1991WO1991008495A1 Magnetic anisotropy measuring device utilizing polyphase rotating magnetic field
06/13/1991WO1991007990A1 Nuclear magnetic resonance agent, detection thereof, and tomography using said agent
06/13/1991DE4038107A1 Nuclear spin tomograph resonator - produces stimulation field with only HF field vector components perpendicular to base field using two partial systems
06/13/1991DE4038106A1 Surface resonator for nuclear spin tomograph - consists of two partial systems with perpendicular magnetic fields, and currents 90 deg. out of phase
06/13/1991DE3940345A1 Sensor responsive to varying magnetic field hinges - has only two output mines and provides constant current at working resistance irrespective of control field intensity
06/13/1991DE3940252A1 Nuclear resonance device - uses 2 cascaded directional couplers for transmitter-receiver decoupling, full transmission power and undamped received signal transfer
06/12/1991EP0431935A2 High pressure proximity sensor
06/12/1991EP0431850A2 Passive shimming assembly for MR magnet
06/12/1991EP0431849A2 Method of optimizing shim coil current selections in magnetic resonance magnets
06/12/1991EP0431848A2 Method of optimizing passive shim placement in magnetic resonance magnets
06/12/1991EP0431847A2 Apparatus for locating passive shim guide rails in MR magnets
06/12/1991EP0431684A1 MRI apparatus having an optimally adjusted detection chain and an enlarged dynamic range
06/12/1991EP0431216A1 Method for acoustical noise reduction in a magnetic resonance apparatus
06/12/1991EP0214186B1 Cylindrical gradient core set for an nmr imaging system
06/11/1991US5023684 Composite semiconductor device having function for overcurrent detection
06/11/1991US5023555 Magnetic resonance imaging
06/11/1991US5023554 Fringe field MRI
06/11/1991US5023553 Method and apparatus for body motion corrective imaging
06/11/1991US5023552 Magnetic resonance device with a selectable gain signal amplifier
06/11/1991US5023551 Nuclear magnetic resonance pulse sequences for use with borehole logging tools
06/11/1991US5023185 Method for determining resolution power or discrimination capacity of an NMR imaging apparatus
06/11/1991US5023072 Paramagnetic/superparamagnetic/ferromagnetic sucrose sulfate compositions for magnetic resonance imaging of the gastrointestinal tract
06/11/1991US5022398 Multiple-echo NMR angiography for enhancement of signal-to noise ratio
06/11/1991US5022397 Multiple-echo NMR angiography with multiple-velocity images
06/05/1991EP0430747A1 Fiber optic measuring device, gyroscope and system for navigation and stabilisation
06/05/1991EP0430322A2 Nuclear spin tomography method and nuclear spin tomograph for carrying out the method
06/05/1991EP0430104A2 Magnetic resonance imaging apparatus
06/05/1991EP0430103A2 Receiver coil for nuclear magnetic resonance imaging apparatus
06/05/1991EP0430088A2 Method for in-vivo shimming
06/05/1991EP0429715A1 Method of operating a nuclear spin tomograph apparatus with a resonant circuit for producing gradient fields
06/05/1991EP0429529A1 Improvements in magnetic resonance measurement.
06/05/1991EP0429521A1 In-vivo method for determining and imaging temperature of an object/subject from diffusion coefficients obtained by nuclear magnetic resonance
06/05/1991CA2021630A1 Apparatus for locating passive shim guide rails in mr magnets
06/05/1991CA2021629A1 Passive shimming assembly for mr magnet
06/05/1991CA2021619A1 Method of optimizing passive shim placement in magnetic resonance magnets
06/05/1991CA2021605A1 Method of optimizing shim coil current selections in magnetic resonance magnets
06/04/1991US5021739 Superconductor type radio frequency with adjustable inductance magnetic flux measuring circuit
06/04/1991US5021736 Speed/position sensor calibration method with angular adjustment of a magnetoresistive element
06/04/1991US5021236 Method of enhancing NMR imaging using chelated paramagnetic ions bound to biomolecules
06/04/1991US5020538 Low noise magnetoencephalogram system and method
05/1991
05/30/1991WO1991007726A1 Probe-correlated viewing of anatomical image data
05/30/1991WO1991007669A1 Gradient-generation system, nuclear-spin tomograph and process for the generation of images using a nuclear-spin tomograph
05/30/1991WO1991007668A1 Cell of atomic or molecular vapors for optical pumping and magnetometer or gyroscope using such cell
05/30/1991WO1991007132A1 Apparatus for hyperthermia treatment of cancer
05/29/1991EP0429295A2 Magnetic resonance spectroscopy
05/29/1991EP0429190A2 Non-invasive examination apparatus and methods
05/28/1991WO1991007911A1 Mri image enhancement of bone and related tissue using complexes of paramagnetic cations and polyphosphonate ligands
05/28/1991US5019784 Time symmetric pulse to uniformly rotate magnetization vectors by an arbitrary angle in the presence of large B1 inhomogeneities and resonance offsets
05/28/1991US5019778 Magnetic resonance apparatus with an optimized detection field
05/28/1991US5019706 Ion cyclotron resonance spectrometer
05/28/1991US5018359 Cryogenic refrigeration apparatus
05/22/1991EP0428502A1 Device for detecting objects behind a surface
05/22/1991EP0427759A1 Probe for high resolution nmr with sample reorientation
05/21/1991US5018178 Medical apparatus with a control console
05/21/1991US5017872 NMR radio frequency coil with dielectric loading for improved field homogeneity
05/21/1991US5017871 Gradient current speed-up circuit for high-speed NMR imaging system
05/21/1991US5017870 Method and system for setting and displaying magnetic resonance image acquisition duration information
05/21/1991US5017869 Swept frequency eddy current system for measuring coating thickness
05/21/1991US5016638 Vibration control in NMR magnet structures
05/21/1991US5016637 MRI method
05/21/1991CA2260688A1 Probe-correlated viewing of anatomical image data
05/16/1991DE3937148A1 Gradientenerzeugungssystem, kernspintomograph und verfahren zur bilderzeugung mit einem kernspintomographen Gradientenerzeugungssystem, nuclear magnetic resonance tomograph and process for image formation with a nuclear spin tomography
05/15/1991EP0427343A2 Nuclear spin tomography method for producing separated fat and water images and arrangement for carrying out the method