Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 33 - Arrangements or instruments for measuring magnetic variables
Patents for G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887)
12/1989
12/05/1989CA1263702A1 Mr tomography method and apparatus for performing the method
11/1989
11/30/1989WO1989011646A1 Nmr-spectrometer with sample exchanger
11/29/1989EP0343858A2 Remote temperature control monitoring apparatus and technique
11/29/1989CN2048592U Pocket magnetic field meter
11/29/1989CN1005932B Mutual inductance nmr rf coil matching device
11/28/1989US4884029 Quick imaging scheme utilizing differently phase encoded primary and stimulated echoes
11/28/1989CA1263440A1 Oil well logging tools measuring paramagnetic logging effect for use in open boreholes and cased well bores
11/23/1989EP0342745A2 Nuclear spin examining apparatus with a radio frequency coil arrangement
11/21/1989US4882560 Coil arrangements in magnetic resonance apparatus
11/21/1989US4882541 Automatic impedance adjuster for MRI system
11/21/1989US4882540 Magnetic resonance imaging (MRI)apparatus with quadrature radio frequency (RF) coils
11/21/1989US4882512 Electromagnetic force sensor
11/21/1989CA1263173A1 Method and apparatus for producing ultrasound images
11/16/1989WO1989010722A1 Head positioning system for accurate cranial alignment and dimension in magnetic resonance
11/16/1989DE3815419A1 Switching device for magnetic resonance imaging equipment (nuclear magnetic resonance investigation equipment)
11/15/1989EP0341783A1 Method of and device for determining spectrum parameters of a spectrum related to spectroscopic signals
11/15/1989EP0226574B1 Magnetoresistive sensor for producing electric signals
11/14/1989US4881136 Method and apparatus for detecting minute defects on magnetic disk by monitoring both amplitude decrease and phase shift of a reproduced signal
11/14/1989US4881035 Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils
11/14/1989US4881034 Switchable MRI RF coil array with individual coils having different and overlapping fields of view
11/14/1989US4881033 Noise-reduced synthetic T2 weighted images
11/14/1989US4881032 Method of, and apparatus for, NMR spectroscopic metabolite imaging and quantification
11/14/1989US4881030 Method and apparatus for measuring and precisely locating internal tensile stresses in hardened regions of components by measuring coercive field strength and barkhausen noise amplitude
11/14/1989US4880007 Amino di- or polyphosphonate-paramagnetic metal ion complex
11/14/1989EP0248039A4 Nmr measurement by controlling the effective magnetic field.
11/14/1989CA1262960A1 Method and apparatus for displaying a single parameter image
11/08/1989EP0340860A1 Superconductive magnet system comprising superconductive cylinders
11/08/1989CN1005746B Method and equipment to determine the nuclear magnetic resonance distribution in part of human body
11/07/1989US4879652 Method for producing three-dimensional images from nuclear data
11/07/1989US4879538 Magnet system for nuclear magnetic resonance tomography devices
11/07/1989US4879516 Precision electrical adjustment of quadrature coil isolation
11/07/1989US4879515 Double-sided RF shield for RF coil contained within gradient coils of NMR imaging device
11/07/1989US4879514 Magnetic resonance imaging device comprising a digital transmitter/receiver
11/07/1989US4878499 Magnetic resonance imaging system
11/07/1989US4878352 Cryostat and assembly method therefor
11/02/1989WO1989010574A1 Resonance assisted domain and domain-wall spectroscopy
11/02/1989WO1989010570A1 Magnetic field detection system
11/02/1989WO1989010557A1 Process and apparatus for disturbance-free measurement of the magnetic properties a test object
11/02/1989WO1989010553A1 Investigating a sample using nmr
11/02/1989WO1989010372A1 Cold marking of molecules of peptidic or proteinic nature
11/02/1989EP0339979A2 Improvements in or relating to NMR imaging system
11/02/1989EP0339723A1 Magnetic resonance apparatus with uncoupled rf coils
11/02/1989EP0339091A1 Apparatus for forming image
11/02/1989EP0339090A1 Nmr imaging method
11/01/1989CN2047030U Permanent-magnet surveying instrument with simulated compensation
11/01/1989CN1036835A Thermomagnetic characteristics tester for rare-earth permanent magnet
10/1989
10/31/1989US4878024 Magnetic resonance apparatus comprising a low-noise gradient coil
10/31/1989US4878023 Magnetic resonance apparatus comprising an improved gradient coil system
10/31/1989US4878022 Widened and shaped MRI surface coil having increased signal-to-noise ratio
10/31/1989US4878021 Magnetic resonance spectroscopy studies of restricted volumes
10/26/1989DE3812778A1 Nuclear magnetic tomography method for the determination of the spatial distribution of nuclear magnetisation in a layer and arrangement for carrying out the method
10/25/1989EP0338624A1 Magnetic resonance apparatus with uncoupled rf coils
10/25/1989EP0338122A1 Integrated circuit comprising a semiconductor magnetic field sensor
10/24/1989US4876510 Apparatus for nuclear spin tomography having superconducting base field magnetic coils and a radiation shield
10/24/1989US4876509 Image restoration process for magnetic resonance imaging resonance imaging
10/24/1989US4876508 Method and apparatus for NMR imaging
10/24/1989US4876507 Method of and device for automatic phase correction of complex NMR spectra
10/24/1989US4876413 Efficient thermal joints for connecting current leads to a cryocooler
10/24/1989US4875486 Instrument and method for non-invasive in vivo testing for body fluid constituents
10/24/1989US4875485 Magnetic resonance system
10/24/1989CA1262474A1 Inductive circuit arrangements
10/19/1989WO1989009846A1 Electrochemically controlled superconductivity
10/19/1989WO1989009625A1 Contrast agents for magnetic resonance imaging
10/19/1989DE3911195A1 Flux meter and method for manufacturing it
10/18/1989EP0337908A1 Probe for high-temperature magnetic resonance spetrometric measurements
10/18/1989EP0337588A2 MRI compensated for spurious NMR frequency/phase shifts caused by spurious changes in magnetic fields during NMR data measurement processes
10/18/1989EP0337587A2 Mri using asymmetric rf nutation pulses and asymmetric synthesis of complex conjugated se data to reduce te and t2 decay of nmr spin echo responses
10/18/1989EP0337204A1 Arrangement for operating a symmetrical rf-antenna
10/18/1989CN1036458A Device for detecting current
10/17/1989US4875013 High-frequency coil for nuclear magnetic imaging
10/17/1989US4875012 Image reconstruction method in nuclear magnetic resonance imaging system
10/17/1989US4875010 Circuit for detecting AC magnetic field due to magnetic resonance with a variable resistance for noise suppression
10/12/1989DE3909276A1 Imaging nuclear magnetic resonance apparatus
10/11/1989EP0336728A2 Apparatus for tuning an NMR field coil
10/11/1989EP0336591A2 Double tuned circuit for distrubuted lumped capacitance observe coils
10/11/1989EP0336479A2 NMR spectrometer
10/11/1989EP0336417A2 Phosphonate initiators for light cured compositions
10/11/1989EP0335981A1 Magnetic resonance imaging system
10/10/1989US4873503 Electrical coils
10/10/1989US4873487 Method and arrangement for suppressing coherent interferences in magnetic resonance signals
10/10/1989US4873486 Magnetic resonance spectrometer
10/10/1989US4872322 Power operated contact apparatus for superconductive circuit
10/05/1989WO1989009512A1 Method of calculating magnetic flux of an induction motor
10/05/1989WO1989009475A1 Shielding superconducting solenoids
10/04/1989EP0335771A1 Antenna for a nuclear magnetic resonance imaging apparatus
10/04/1989EP0335556A2 Apparatus comprising a superconductive element , and method of making the element
10/04/1989EP0335534A2 Rapid MRI using multiple receivers producing multiply phase-encoded data derived from a single NMR response
10/04/1989EP0335512A2 Calibrated decoupling of tightly coupled concentric surface coils
10/04/1989EP0335269A1 Magnetic flux operation method for induction motor
10/04/1989EP0335155A2 Method and arrangement for the display of superficial flaws in record carriers
10/04/1989EP0334908A1 Magnetometer
10/03/1989US4871969 RF shield for RF coil contained within gradient coils of NMR imaging device
10/03/1989US4871968 Magnetic resonance apparatus
10/03/1989US4871967 Spectral component separation in mr imaging
10/03/1989US4871966 Apparatus and method for multiple angle oblique magnetic resonance imaging
09/1989
09/28/1989DE3908303A1 Method of imaging coronary arteries
09/27/1989EP0334660A2 R.F. preamplifier
09/27/1989EP0334382A1 Magnet apparatus for use in magnetic resonance imaging system
09/26/1989US4870380 Magnet arrangements
09/26/1989US4870363 Apparatus for creating a magnetic field gradient and the examination of a surface layer of a body
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