公开(公告)号：US20120242335A1

公开(公告)日：2012-09-27

申请号：US13407819

申请日：2012-02-29

申请人： Oskar Schett ,  Daniel Guy Baumann ,  Marc Schnell ,  Cengiz Cetrefli ,  Daniel Marek ,  Klemens Kessler ,  Philippe Stauffenegger

发明人： Oskar Schett ,  Daniel Guy Baumann ,  Marc Schnell ,  Cengiz Cetrefli ,  Daniel Marek ,  Klemens Kessler ,  Philippe Stauffenegger

IPC分类号： G01R33/31

CPC分类号： G01R33/3403

摘要： An NMR (nuclear magnetic resonance) apparatus has a magnet system disposed in a cryostat (1), the cryostat having at least one nitrogen tank (3b) for receiving liquid nitrogen (5b) and a room temperature bore (7) for receiving an NMR probehead (8), wherein part(s) of the probehead or the overall probehead can be cooled to cryogenic temperatures by supplying liquid nitrogen (5b) via a supply line (14). The nitrogen tank (3b) of the cryostat (1) is connected to the NMR probehead (8) by means of a supply line (14) in such a fashion that liquid nitrogen (5b) is removed from the nitrogen tank (3b) and guided to the NMR probehead (8). The overall apparatus is therefore more compact, the operating comfort of the apparatus is increased, and the costs for acquisition, operation and maintenance are considerably reduced compared to previous comparable devices.

摘要翻译： NMR（核磁共振）装置具有设置在低温恒温器（1）中的磁体系统，低温恒温器具有用于接收液氮的至少一个氮气罐（3b）和用于接收NMR的室温孔（7） 探头（8），其中通过经由供应管线（14）供应液氮（5b），探针头或整个探针头的部分可被冷却至低温。 低温恒温器（1）的氮气罐（3b）借助于供应管线（14）与NMR探针头（8）连接，使氮气（5b）从氮气罐（3b）中取出， 引导到NMR探针头（8）。 因此，整体装置更紧凑，装置的操作舒适性增加，并且与先前的可比装置相比，采集，操作和维护的成本大大降低。

公开(公告)号：US08975896B2

公开(公告)日：2015-03-10

申请号：US13407819

申请日：2012-02-29

申请人： Oskar Schett ,  Daniel Guy Baumann ,  Marc Schnell ,  Cengiz Cetrefli ,  Daniel Marek ,  Klemens Kessler ,  Philippe Stauffenegger

发明人： Oskar Schett ,  Daniel Guy Baumann ,  Marc Schnell ,  Cengiz Cetrefli ,  Daniel Marek ,  Klemens Kessler ,  Philippe Stauffenegger

IPC分类号： G01R33/34

CPC分类号： G01R33/3403

摘要： An NMR (nuclear magnetic resonance) apparatus has a magnet system disposed in a cryostat (1), the cryostat having at least one nitrogen tank (3b) for receiving liquid nitrogen (5b) and a room temperature bore (7) for receiving an NMR probehead (8), wherein part(s) of the probehead or the overall probehead can be cooled to cryogenic temperatures by supplying liquid nitrogen (5b) via a supply line (14). The nitrogen tank (3b) of the cryostat (1) is connected to the NMR probehead (8) by means of a supply line (14) in such a fashion that liquid nitrogen (5b) is removed from the nitrogen tank (3b) and guided to the NMR probehead (8). The overall apparatus is therefore more compact, the operating comfort of the apparatus is increased, and the costs for acquisition, operation and maintenance are considerably reduced compared to previous comparable devices.

摘要翻译： NMR（核磁共振）装置具有设置在低温恒温器（1）中的磁体系统，低温恒温器具有用于接收液氮的至少一个氮气罐（3b）和用于接收NMR的室温孔（7） 探头（8），其中通过经由供应管线（14）供应液氮（5b），探针头或整个探针头的部分可被冷却至低温。 低温恒温器（1）的氮气罐（3b）借助于供应管线（14）与NMR探针头（8）连接，使氮气（5b）从氮气罐（3b）中取出， 引导到NMR探针头（8）。 因此，整体装置更紧凑，装置的操作舒适性增加，并且与先前的可比装置相比，采集，操作和维护的成本大大降低。

公开(公告)号：US20110100027A1

公开(公告)日：2011-05-05

申请号：US12926113

申请日：2010-10-27

申请人： Marc A. Schnell ,  Marc Enrique Paredes ,  Cengiz Cetrefli ,  Philippe Stauffenegger ,  Daniel Marek

发明人： Marc A. Schnell ,  Marc Enrique Paredes ,  Cengiz Cetrefli ,  Philippe Stauffenegger ,  Daniel Marek

IPC分类号： F25B19/00 ,  G05D23/00 ,  F28F27/02 ,  G01R33/44

CPC分类号： G01R33/3403 ,  F17C2227/0318 ,  F17C2227/0395 ,  G01R33/31

摘要： A cryo probe head for the transmission/reception of RF signals for NMR measurements with a heat exchanger (1) for cooling heat sources (5), the heat exchanger having a contact element (4.2) for thermal connection between a cryogenic fluid and the heat source, is characterized in that the heat exchanger comprises a container having an interior volume VB into which a first cryogenic fluid F1 that has a liquid component F1L and a gaseous component F1G flows through an inflow conduit (8) and from which a second cryogenic fluid F2 that has liquid component F2L and a gaseous component F2G flows out through an outflow conduit (9). The inflow conduit has a flow cross-section QZ and a circumference UZ from which a characteristic conduit volume VZ=4·Q2Z/UZ results, wherein VB>10·VZ, and the outflow conduit has a flow diameter QA wherein QA≧QZ. The contact element is in close thermal contact with both the liquid volume component VL of the cryogenic fluid and with the heat source. A device for setting the inflow quantity of the first cryogenic fluid F1 into the container is provided that ensures a state F1L/F1G>F2L/F2G during operation. In this way, vibrations due to the cooling process can be largely reduced and the consumption of cryogenic fluid minimized.

摘要翻译： 用于用用于冷却热源（5）的热交换器（1）发射/接收用于NMR测量的RF信号的冷冻探头，所述热交换器具有用于在低温流体和热量之间进行热连接的接触元件（4.2） 来源，其特征在于，热交换器包括具有内部体积VB的容器，具有液体组分F1L的第一低温流体F1和气态组分F1G流过流入导管（8），第二低温流体 具有液体成分F2L的F2和气态成分F2G通过流出管道9流出。 流入管道具有流动横截面积QZ和圆周UZ，其中VB> 10VZ的特征导管体积VZ = 4·Q2Z / UZ，流出管道的流量直径QA为QA≥QZ。 接触元件与低温流体的液体体积分量VL和热源紧密地热接触。 提供了一种用于将第一低温流体F1的流入量设定为容器的装置，其在操作期间确保状态F1L / F1G> F2L / F2G。 以这种方式，由于冷却过程引起的振动可以大大降低，并且低温流体的消耗最小化。