公开(公告)号：US20150114848A1

公开(公告)日：2015-04-30

申请号：US14388141

申请日：2013-02-14

申请人： Frank Engelke ,  Claudius Bevot ,  Thomas Schulz ,  Rolf Reischl ,  Rolf Kraemer ,  Andreas Gess

发明人： Frank Engelke ,  Claudius Bevot ,  Thomas Schulz ,  Rolf Reischl ,  Rolf Kraemer ,  Andreas Gess

IPC分类号： G01N27/403 ,  G01M15/10

CPC分类号： G01N27/403 ,  G01M15/102 ,  G01N27/4067

摘要： In a method for operating a heatable exhaust-gas sensor, which supplies at least one measuring signal and in which a sensor heater is operated using a pulse-width modulated operating voltage, the detection of the at least one measuring signal has priority over the supply of the pulse-width modulated operating voltage for sensor heater, and at least during a predefined time window in which the measuring signal is detected, the supply of the pulse-width modulated operating voltage for the sensor heater is suppressed using a blocking signal.

摘要翻译： 在用于操作提供至少一个测量信号并且其中传感器加热器使用脉冲宽度调制工作电压来操作的可加热排气传感器的方法中，所述至少一个测量信号的检测优先于供给 的传感器加热器的脉冲宽度调制工作电压，并且至少在检测到测量信号的预定时间窗口期间，使用阻塞信号抑制传感器加热器的脉冲宽度调制工作电压的供给。

公开(公告)号：US07919963B2

公开(公告)日：2011-04-05

申请号：US12370045

申请日：2009-02-12

申请人： Alexander Krahn ,  Peter Hoefer ,  Marian Kloza ,  Frank Engelke

发明人： Alexander Krahn ,  Peter Hoefer ,  Marian Kloza ,  Frank Engelke

IPC分类号： G01V3/00

CPC分类号： G01R33/345 ,  G01R33/30 ,  G01R33/34046 ,  G01R33/34053 ,  G01R33/3453 ,  G01R33/3635 ,  G01R33/4808 ,  G01R33/60 ,  G01R33/62

摘要： A resonator assembly for executing measurements on a sample within a constant magnetic field B0 by means of magnetic resonance is disclosed. It comprises a resonator portion defining a longitudinal axis and an axial direction. The resonator portion has, along the axial direction, a hollow cavity for exciting electron resonance within the sample. A coupling portion is provided adjacent the resonator portion and has, along the longitudinal axis, a stepped through being electrically conductive at its inner surface. A first, middle section of the stepped through configures the hollow cavity. A second and a third, lateral section adjacent axially opposed sides of the hollow cavity are each dimensioned such that a basic mode being resonant within the hollow cavity is unable to propagate within the second and the third section. A coil is wound around the resonator portion for additionally exciting a nuclear resonance within the sample. The resonator portion comprises a toroidal body made from an electrically conductive material within which there is provided the stepped through. The toroidal body is provided with at least one axial slit.

摘要翻译： 公开了一种用于通过磁共振在恒定磁场B0内对样本进行测量的谐振器组件。 它包括限定纵向轴线和轴向方向的谐振器部分。 谐振器部分沿着轴向具有用于在样品内激发电子共振的中空腔。 耦合部分设置在谐振器部分附近，并且沿着纵向轴线具有在其内表面处导电的台阶状。 阶梯式通道的第一，中间部分构成空腔。 与中空腔的轴向相对侧相邻的第二和第三侧横截面的每个尺寸设计成使得在中空腔内共振的基本模式不能在第二和第三部分内传播。 线圈绕在谐振器部分周围，用于另外激发样品内的核共振。 谐振器部分包括由导电材料制成的环形体，在该环形体内设置有阶梯状。 环形体设置有至少一个轴向狭缝。

公开(公告)号：US20090230963A1

公开(公告)日：2009-09-17

申请号：US12370045

申请日：2009-02-12

申请人： Alexander Krahn ,  Peter Hoefer ,  Marian Kloza ,  Frank Engelke

发明人： Alexander Krahn ,  Peter Hoefer ,  Marian Kloza ,  Frank Engelke

IPC分类号： G01R33/34

CPC分类号： G01R33/345 ,  G01R33/30 ,  G01R33/34046 ,  G01R33/34053 ,  G01R33/3453 ,  G01R33/3635 ,  G01R33/4808 ,  G01R33/60 ,  G01R33/62

摘要： A resonator assembly for executing measurements on a sample within a constant magnetic field B0 by means of magnetic resonance is disclosed. It comprises a resonator portion defining a longitudinal axis and an axial direction. The resonator portion has, along the axial direction, a hollow cavity for exciting electron resonance within the sample. A coupling portion is provided adjacent the resonator portion and has, along the longitudinal axis, a stepped through being electrically conductive at its inner surface. A first, middle section of the stepped through configures the hollow cavity. A second and a third, lateral section adjacent axially opposed sides of the hollow cavity are each dimensioned such that a basic mode being resonant within the hollow cavity is unable to propagate within the second and the third section. A coil is wound around the resonator portion for additionally exciting a nuclear resonance within the sample. The resonator portion comprises a toroidal body made from an electrically conductive material within which there is provided the stepped through. The toroidal body is provided with at least one axial slit.

摘要翻译： 公开了一种用于通过磁共振在恒定磁场B0内对样本进行测量的谐振器组件。 它包括限定纵向轴线和轴向方向的谐振器部分。 谐振器部分沿着轴向具有用于在样品内激发电子共振的中空腔。 耦合部分设置在谐振器部分附近，并且沿着纵向轴线具有在其内表面处导电的台阶状。 阶梯式通道的第一，中间部分构成空腔。 与中空腔的轴向相对侧相邻的第二和第三侧横截面的每个尺寸设计成使得在中空腔内共振的基本模式不能在第二和第三部分内传播。 线圈绕在谐振器部分周围，用于另外激发样品内的核共振。 谐振器部分包括由导电材料制成的环形体，在该环形体内设置有阶梯状。 环形体设置有至少一个轴向狭缝。

公开(公告)号：US20070030005A1

公开(公告)日：2007-02-08

申请号：US11494265

申请日：2006-07-27

申请人： Alexander Krahn ,  Peter Hoefer ,  Frank Engelke

发明人： Alexander Krahn ,  Peter Hoefer ,  Frank Engelke

IPC分类号： G01V3/00

CPC分类号： G01R33/307 ,  G01R33/34046 ,  G01R33/3453

摘要： A probe head for nuclear magnetic resonance measurements comprises a sample holder having a stator and a rotor. The rotor is journalled for rotation about an axis of rotation within the stator. It is adapted for receiving a sample substance. The axis of rotation is inclined by an angle with respect to a longitudinal axis of the probe head. The stator is configured as a dielectric resonator.

摘要翻译： 用于核磁共振测量的探头包括具有定子和转子的样品架。 转子被旋转以围绕定子内的旋转轴旋转。 适用于接收样品物质。 旋转轴线相对于探头的纵向轴线倾斜一个角度。 定子被配置为介质谐振器。

公开(公告)号：US09329245B2

公开(公告)日：2016-05-03

申请号：US13443903

申请日：2012-04-11

申请人： Sami Jannin ,  Antonio Giuseppe Gianotti ,  Joost Lohman ,  Frank Engelke ,  Roberto Melzi ,  Aurélien Bornet ,  Geoffrey Bodenhausen

发明人： Sami Jannin ,  Antonio Giuseppe Gianotti ,  Joost Lohman ,  Frank Engelke ,  Roberto Melzi ,  Aurélien Bornet ,  Geoffrey Bodenhausen

IPC分类号： G01R33/62 ,  G01R33/28 ,  G01R33/46 ,  G01R33/56

CPC分类号： G01R33/282 ,  G01R33/4608 ,  G01R33/5605 ,  G01R33/62

摘要： A method for producing hyperpolarized sample material for use in magnetic resonance investigations involves preparing a target material containing high γ nuclei with a short T1, a polarizing agent with a broad EPR line, and low γ nuclei with a long T1. The polarizing agent in the target material is irradiated with microwave radiation, wherein the target material is at a cryogenic temperature and exposed to a static magnetic field B0≧4.0 T, thus polarizing the high γ nuclei by DNP, and the polarization is transferred from the high γ nuclei to the low γ nuclei by Cross Polarization. A dissolved sample material is prepared containing the hyperpolarized low γ nuclei from the target material. Nuclei with a long longitudinal relaxation time T1 can thereby be quickly hyperpolarized to a high polarization level.

摘要翻译： 用于制造用于磁共振研究的超极化样品材料的方法包括制备具有短T1的高γ核的目标材料，具有宽EPR线的偏振剂和具有长T1的低γ核。 用微波辐射照射目标材料中的偏振剂，其中目标材料处于低温并暴露于静态磁场B0≥4.0T，从而通过DNP使高γ核偏振，并且偏振从 通过交叉极化将高γ核转移到低γ核。 制备含有来自目标材料的超极化低γ核的溶解样品材料。 因此，具有长纵向弛豫时间T1的核可以快速超极化到高极化水平。

公开(公告)号：US20130274111A1

公开(公告)日：2013-10-17

申请号：US13443903

申请日：2012-04-11

申请人： Sami Jannin ,  Antonio Giuseppe Gianotti ,  Joost Lohman ,  Frank Engelke ,  Roberto Melzi ,  Aurélien Bornet ,  Geoffrey Bodenhausen

发明人： Sami Jannin ,  Antonio Giuseppe Gianotti ,  Joost Lohman ,  Frank Engelke ,  Roberto Melzi ,  Aurélien Bornet ,  Geoffrey Bodenhausen

IPC分类号： B01J19/12 ,  H01L39/02 ,  G01R33/44 ,  F25B19/00

CPC分类号： G01R33/282 ,  G01R33/4608 ,  G01R33/5605 ,  G01R33/62

摘要： A method for producing hyperpolarized sample material for use in magnetic resonance investigations involves preparing a target material containing high γ nuclei with a short T1, a polarizing agent with a broad EPR line, and low γ nuclei with a long T1. The polarizing agent in the target material is irradiated with microwave radiation, wherein the target material is at a cryogenic temperature and exposed to a static magnetic field B0≧4.0 T, thus polarizing the high γ nuclei by DNP, and the polarization is transferred from the high γ nuclei to the low γ nuclei by Cross Polarization. A dissolved sample material is prepared containing the hyperpolarized low γ nuclei from the target material. Nuclei with a long longitudinal relaxation time T1 can thereby be quickly hyperpolarized to a high polarization level.

摘要翻译： 用于生产用于磁共振研究的超极化样品材料的方法包括制备具有短T1的高γ核的靶材料，具有宽EPR线的偏振剂和具有长T1的低γ核。 目标材料中的偏振剂用微波辐射照射，其中目标材料处于低温并暴露于静态磁场B0> = 4.0T，从而通过DNP使高γ核偏振，并且偏振从 通过交叉极化对低伽马核的高伽马核。 制备溶解的样品材料，其包含来自靶材料的超极化低γ核。 因此，具有长纵向弛豫时间T1的核可以快速超极化到高极化水平。

公开(公告)号：US07436181B2

公开(公告)日：2008-10-14

申请号：US11494265

申请日：2006-07-27

申请人： Alexander Krahn ,  Peter Hoefer ,  Frank Engelke

发明人： Alexander Krahn ,  Peter Hoefer ,  Frank Engelke

IPC分类号： G01V3/00

CPC分类号： G01R33/307 ,  G01R33/34046 ,  G01R33/3453

摘要： A probe head for nuclear magnetic resonance measurements comprises a sample holder having a stator and a rotor. The rotor is journalled for rotation about an axis of rotation within the stator. It is adapted for receiving a sample substance. The axis of rotation is inclined by an angle with respect to a longitudinal axis of the probe head. The stator is configured as a dielectric resonator.

摘要翻译： 用于核磁共振测量的探头包括具有定子和转子的样品架。 转子被旋转以围绕定子内的旋转轴旋转。 适用于接收样品物质。 旋转轴线相对于探头的纵向轴线倾斜一个角度。 定子被配置为介质谐振器。

公开(公告)号：US06605944B2

公开(公告)日：2003-08-12

申请号：US09839591

申请日：2001-04-20

申请人： Frank Engelke

发明人： Frank Engelke

IPC分类号： G01V300

CPC分类号： G01R33/3628 ,  G01R33/30

摘要： A probehead for nuclear magnetic resonance measurements has a network. The network comprises in series an NMR coil for receiving a sample, a line resonator as well as a probehead terminal. The line resonator is configured as a delay line.

摘要翻译： 用于核磁共振测量的探头具有网络。 该网络包括用于接收样品的NMR线圈，线谐振器以及探头端子。 线路谐振器被配置为延迟线。