公开(公告)号：US20180120389A1

公开(公告)日：2018-05-03

申请号：US15794766

申请日：2017-10-26

申请人： Bruker BioSpin AG

发明人： Nicolas FREYTAG

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01R33/341

CPC分类号： G01R33/34092 ,  G01R33/34023 ,  G01R33/34046 ,  G01R33/34061 ,  G01R33/341 ,  G01R33/3628 ,  G01R33/3635

摘要： An HF resonator assembly generates at least two independent alternating magnetic fields in a test volume of a magnetic resonance apparatus. The HF resonator assembly includes a first pair of flat coils that form a first HF resonator and comprise electrical conductor portions that surround a planar surface portion. The flat coils are arranged on opposing sides of the test volume, on coil support plates that are mutually parallel and in parallel with the longitudinal axis. A second pair of flat coils forms a second HF resonator on second coil support plates. The projections of the planar surface portions of the flat coils in each of the first pair of flat coils and the second pair of flat coils overlap in part, but not completely, when viewed in a direction perpendicular to the respective planar surface portions.

公开(公告)号：US20170248404A1

公开(公告)日：2017-08-31

申请号：US15441991

申请日：2017-02-24

申请人： Bruker BioSpin AG

发明人： Nicolas FREYTAG

IPC分类号： G01B7/30 ,  G01N24/08 ,  G01R33/07 ,  G01R33/46 ,  G01R33/38

CPC分类号： G01B7/30 ,  G01D5/145 ,  G01N24/087 ,  G01R33/07 ,  G01R33/307 ,  G01R33/38 ,  G01R33/46

摘要： A probehead of an NMR-MAS apparatus with a rotation axis (RA), which lies in an xz-plane, titled by an angle θ>0 relative to a z-axis. The angle θ is adjusted by tilting around a tilt axis (DA) parallel to the y-axis relative to a target angle θtarget. An angle measurement apparatus (9) has a first sensor element (7), which, together with a second sensor element (8) generates sensor signals dependent on the amplitude B0 of the static magnetic field and the vectorial orientation between the magnetic field B0 and a sensitivity vector. Two sensitivity vectors have an angle 5° 10° to each other. The angle between the rotation axis and the z-axis can be measured precisely and reliably over a large range, providing a feedback signal for regulated adjustment or tracking of the angle θ.

公开(公告)号：US20170146621A1

公开(公告)日：2017-05-25

申请号：US15355290

申请日：2016-11-18

申请人： Bruker BioSpin AG

发明人： Nicolas FREYTAG ,  Fabian KUEHLER

IPC分类号： G01R33/30 ,  G01R33/46

CPC分类号： G01R33/307 ,  G01R33/4641

摘要： A probehead of an NMR-MAS apparatus includes a sample which has a rotation axis tilted by an angle θ>0 with respect to the z-axis. The angle θ can be adjusted about a target angle θtarget by tilting around a tilt axis. The rotation axis has a fixed angle with respect to the probehead, and the NMR-MAS apparatus tilts at least part of the probehead to adjust the angle θ. The probehead has a support frame with an outer contour K between an upper end and a lower end. For all z between the upper end and the lower end, a cross-section S(z) of the contour K exists parallel to the xy-plane with a width Q(z) in the x-direction. The width Q(z) is smaller at points away from z=0, such that Q(z1) 0.

公开(公告)号：US20180003782A1

公开(公告)日：2018-01-04

申请号：US15639380

申请日：2017-06-30

申请人： Bruker BioSpin AG

发明人： Alia HASSAN ,  Nicolas FREYTAG

IPC分类号： G01R33/34 ,  G01R33/341 ,  G01R33/36 ,  G01R33/44 ,  G01V3/14

摘要： An HF coil assembly for generating independent alternating magnetic fields in an examination volume of a magnetic resonance apparatus is presented, the HF coil assembly comprising a first coil pair of saddle coils and a second coil pair of saddle coils, each saddle coil having longitudinal conductor elements and curved conductor elements arranged along a common lateral surface of a circular cylinder having a cylinder axis. Each coil pair comprises curved conductor elements and longitudinal conductor elements which are interconnected at a high frequency. The saddle coils also have diagonal conductor elements and/or bridge elements that connect the longitudinal and curved conductor elements. The coil pairs are opposite to each other relative to the cylinder axis.