公开(公告)号：US20230246321A1

公开(公告)日：2023-08-03

申请号：US18118973

申请日：2023-03-08

申请人： Amherst College

发明人： Jonathan R. Friedman

IPC分类号： H01P7/06 ,  G01R33/343 ,  G01R33/60 ,  G06N10/00 ,  H01P7/08

CPC分类号： H01P7/06 ,  G01R33/343 ,  G01R33/60 ,  G06N10/00 ,  H01P7/08

摘要： Improved loop-gap resonators applicable to Electron-Spin Resonance spectroscopy and to quantum computing employ interdigitated capacitor structures to dramatically increase the capacitance of the resonator, along with corresponding decreases in loop size to enable measurements of small-volume samples or individual quantum bits (qubits). The interdigitated-capacitor structures are designed to minimize parasitic inductance.

公开(公告)号：US20180356483A1

公开(公告)日：2018-12-13

申请号：US16002458

申请日：2018-06-07

申请人： Trustees of Boston University

发明人： Xin Zhang ,  Stephan Anderson ,  Guangwu Duan ,  Xiaoguang Zhao

IPC分类号： G01R33/56 ,  A61B5/055 ,  G01R33/343 ,  G01R33/36

CPC分类号： G01R33/5608 ,  A61B5/055 ,  G01R33/343 ,  G01R33/3628

摘要： A passive apparatus including a plurality of resonators increases signal-to-noise ratio of radiofrequency signals emitted by a specimen and captured by an MRI machine. The apparatus increases the magnetic field component of radiofrequency energy during signal transmission from the MRI machine to the specimen, and/or reception of signals from the specimen to the MRI machine. Moreover, the apparatus enhances specimen safety by substantially avoiding unwanted generation of an electric field, or an increase in the electric field component of the RF energy. Use of the apparatus improves the images generated by the MRI machine, and/or reduces the time necessary for the MRI machine to capture the image.

公开(公告)号：US09293890B2

公开(公告)日：2016-03-22

申请号：US14403209

申请日：2013-05-24

申请人： IMPERIAL INNOVATIONS LIMITED

发明人： Jonathan David Baxendale Breeze ,  Neil McNeill Alford

IPC分类号： H01S1/02 ,  H01S4/00 ,  G01R33/343 ,  H01P7/08

CPC分类号： H01S4/00 ,  G01R33/343 ,  H01P7/08 ,  H01S1/02

摘要： A device for, and a method of, generating stimulated emission of microwave or radio frequency electromagnetic radiation, utilize a resonator structure, an input source of microwave or radio frequency electromagnetic radiation to be amplified, and an input of energy arranged to pump the resonator structure and thereby cause amplification of the electromagnetic radiation. The configuration of the resonator structure and/or the materials used in its construction give rise to an increase in the magnetic Purcell factor of the resonator structure.

摘要翻译： 用于产生微波或射频电磁辐射的受激发射的装置和方法利用谐振器结构，放大微波或射频电磁辐射的输入源，以及布置成泵浦谐振器结构的能量输入 从而引起电磁辐射的放大。 在其结构中使用的谐振器结构和/或材料的配置导致谐振器结构的磁性Purcell因子的增加。

公开(公告)号：US08829904B2

公开(公告)日：2014-09-09

申请号：US13366925

申请日：2012-02-06

申请人： James R. White ,  Christopher John White

发明人： James R. White ,  Christopher John White

IPC分类号： G01V3/00 ,  G01R33/343 ,  H01P7/06 ,  G01N24/10 ,  G01R33/345 ,  G01N24/08 ,  G01R33/30 ,  G01R33/34 ,  G01R33/60

CPC分类号： G01N24/10 ,  G01N24/08 ,  G01R33/307 ,  G01R33/34 ,  G01R33/343 ,  G01R33/345 ,  G01R33/60 ,  H01P7/06

摘要： A method of and miniaturized apparatus adapted for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry, wherein the use of a modulated constant magnetic field in an RF resonating variable frequency microwave cavity resonator through which a fluid sample is passed, enables direct detection of molecular changes in such fluid sample resulting from fluid degradation during use.

摘要翻译： 一种适用于通过微电子自旋共振（ESR）光谱法原位测量汽车流体等的劣化的方法和小型化装置，其中在RF谐振可变频率微波谐振腔谐振器中使用调制恒定磁场 流体样品通过，可以直接检测在使用过程中流体降解导致的这种流体样品中的分子变化。

公开(公告)号：US07838298B2

公开(公告)日：2010-11-23

申请号：US11252223

申请日：2005-10-17

申请人： Andreas Kamlowski ,  Dieter Schmalbein ,  Arne Kasten

发明人： Andreas Kamlowski ,  Dieter Schmalbein ,  Arne Kasten

IPC分类号： G01N31/00 ,  G01N33/06 ,  G01N33/92 ,  G01V3/00

CPC分类号： G01N24/08 ,  G01R33/30 ,  G01R33/343

摘要： A method and an apparatus serve the purpose of determining the fat or oil content of a sample. The sample is dried under the action of a microwave field and is examined under the action of a radio-frequency signal and of a constant magnetic field by means of nuclear magnetic resonance. The sample is exposed to the microwave field, the radio-frequency signal and the magnetic field at the same measuring place in a common measuring chamber. The apparatus has a microwave source for drying the sample, a magnetic system for generating a nuclear magnetic resonance magnetic field in the sample, and a nuclear magnetic resonance measuring arrangement for irradiating radio-frequency signals into the sample and for receiving excited nuclear magnetic resonance signals from the sample. The microwave source, the magnetic system and the nuclear magnetic resonance measuring arrangement are connected to a common measuring chamber in which the sample is located.

摘要翻译： 方法和装置用于确定样品的脂肪或油含量的目的。 样品在微波场作用下干燥，并通过核磁共振在射频信号和恒定磁场的作用下进行检测。 样品暴露于微波场，射频信号和在同一测量室中相同测量位置处的磁场。 该装置具有用于干燥样品的微波源，用于在样品中产生核磁共振磁场的磁系统和用于将射频信号照射到样品中并用于接收激发的核磁共振信号的核磁共振测量装置 从样品。 微波源，磁系统和核磁共振测量装置连接到样品所在的公共测量室。

公开(公告)号：US20090121716A1

公开(公告)日：2009-05-14

申请号：US12292056

申请日：2008-11-12

申请人： Diether Maier ,  Michael Maixner

发明人： Diether Maier ,  Michael Maixner

IPC分类号： G01R33/34

CPC分类号： G01R33/34046 ,  G01R33/34007 ,  G01R33/34053 ,  G01R33/343

摘要： A nuclear magnetic resonance (NMR) resonator (1; 31) comprising an inductive section (6) and a capacitive section (6a), wherein the inductive section (6) is band-shaped and surrounds a substantially cylindrical volume under investigation (5), wherein the capacitive section (6a) is formed from one or more discrete capacitor(s) (13; 13a, 13b, 13c, 13d), and wherein the ends (7, 8) of the band-shaped inductive section (6) are connected through one or several capacitor(s) (13; 13a, 13b, 13c, 13d) of the capacitive section (6a), is characterized in that the inductive section (6) is formed from a dielectric flexible foil (2) which is conductively coated on both sides and the ends (7, 8) of the band-shaped inductive section (6) overlap, wherein the outer coating (4) of the inner end (7) is electrically conductingly connected to the inner coating (3) of the outer end (8), with one or more through-connections (10) being provided in the area of the inner end (7) of the band-shaped inductive section (6), and the outer coating (4) being connected in the area of the outer end (8) to the inner coating (3) in the area of the inner end (7) via one or more capacitor(s) (13; 13a, 13b, 13c, 13d) and one or several through-connection(s) (10). The inventive NMR resonator for low-resolution NMR has a simple construction and provides NMR measurements of improved quality at low resonance frequencies.

摘要翻译： 包括电感部分（6）和电容部分（6a）的核磁共振（NMR）谐振器（1; 31），其中所述感应部分（6）是带状的，并且围绕被研究的基本上圆柱形的体积（5） ，其中所述电容部分（6a）由一个或多个分立电容器（13; 13a，13b，13c，13d）形成，并且其中所述带状感应部分（6）的端部（7,8） 通过所述电容部分（6a）的一个或多个电容器（13; 13a，13b，13c，13d）连接，其特征在于，所述电感部分（6）由介电柔性箔（2）形成，所述电介质柔性箔 被导电地涂覆在带状感应部分（6）的两侧并且端部（7,8）重叠，其中内端部（7）的外涂层（4）导电地连接到内涂层（3） ），其中一个或多个通孔（10）设置在带状感应部分的内端（7）的区域中 离子（6），并且外涂层（4）通过一个或多个电容器（6）在外端（8）的区域中连接到内端（7）的区域中的内涂层（3） 13; 13a，13b，13c，13d）和一个或多个贯通连接（10）。 用于低分辨率NMR的本发明NMR谐振器具有简单的结构，并且在低共振频率下提供了改进质量的NMR测量。

公开(公告)号：US20090115416A1

公开(公告)日：2009-05-07

申请号：US12316215

申请日：2008-12-09

申请人： James R. White ,  Christopher J. White

发明人： James R. White ,  Christopher J. White

IPC分类号： G01R33/60

CPC分类号： G01N24/10 ,  G01N24/08 ,  G01R33/307 ,  G01R33/34 ,  G01R33/343 ,  G01R33/345 ,  G01R33/60 ,  H01P7/06

摘要： A method of and miniaturized apparatus adapted for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry, wherein the use of a modulated constant magnetic field in an RF resonating variable frequency microwave cavity resonator through which a fluid sample is passed, enables direct detection of molecular changes in such fluid sample resulting from fluid degradation during use.

摘要翻译： 一种适用于通过微电子自旋共振（ESR）光谱法原位测量汽车流体等的劣化的方法和小型化装置，其中在RF谐振可变频率微波谐振腔谐振器中使用调制恒定磁场 流体样品通过，可以直接检测在使用过程中流体降解导致的这种流体样品中的分子变化。

公开(公告)号：US20070010021A1

公开(公告)日：2007-01-11

申请号：US11252223

申请日：2005-10-17

申请人： Andreas Kamlowski ,  Dieter Schmalbein ,  Arne Kasten

发明人： Andreas Kamlowski ,  Dieter Schmalbein ,  Arne Kasten

IPC分类号： G01N33/92

CPC分类号： G01N24/08 ,  G01R33/30 ,  G01R33/343

摘要： A method and an apparatus serve the purpose of determining the fat or oil content of a sample. The sample is dried under the action of a microwave field and is examined under the action of a radio-frequency signal and of a constant magnetic field by means of nuclear magnetic resonance. The sample is exposed to the microwave field, the radio-frequency signal and the magnetic field at the same measuring place in a common measuring chamber. The apparatus has a microwave source for drying the sample, a magnetic system for generating a nuclear magnetic resonance magnetic field in the sample, and a nuclear magnetic resonance measuring arrangement for irradiating radio-frequency signals into the sample and for receiving excited nuclear magnetic resonance signals from the sample. The microwave source, the magnetic system and the nuclear magnetic resonance measuring arrangement are connected to a common measuring chamber in which the sample is located.

摘要翻译： 方法和装置用于确定样品的脂肪或油含量的目的。 样品在微波场作用下干燥，并通过核磁共振在射频信号和恒定磁场的作用下进行检测。 样品暴露于微波场，射频信号和在同一测量室中相同测量位置处的磁场。 该装置具有用于干燥样品的微波源，用于在样品中产生核磁共振磁场的磁系统和用于将射频信号照射到样品中并用于接收激发的核磁共振信号的核磁共振测量装置 从样品。 微波源，磁系统和核磁共振测量装置连接到样品所在的公共测量室。

公开(公告)号：US06984980B2

公开(公告)日：2006-01-10

申请号：US10132986

申请日：2002-04-26

申请人： Thomas Kruspe ,  Martin Blanz ,  Peter Rottengatter

发明人： Thomas Kruspe ,  Martin Blanz ,  Peter Rottengatter

IPC分类号： G01V3/00

CPC分类号： G01V3/32 ,  G01N24/081 ,  G01R33/343

摘要： A loop-gap resonator for providing an excitation pulse in a down hole nuclear magnetic resonating (NMR) tool for determining a parameter of interest in a formation adjacent a borehole. The loop-gap resonator is constructed having one or more capacitive gaps formed in a nonmagnetic conductive loop. The loop-gap resonator may be deployed down a bore in a measurement while drilling (MWD) configuration or in a wire line configuration. The MWD configuration may utilize a non-rotating sleeve rotationally associated with the drill string.

公开(公告)号：US5739690A

公开(公告)日：1998-04-14

申请号：US627263

申请日：1996-04-04

申请人： George A. Rinard

发明人： George A. Rinard

IPC分类号： G01V3/00 ,  G01N24/10 ,  G01R33/34 ,  G01R33/343 ,  G01R33/36 ,  G01R33/60

CPC分类号： G01R33/60 ,  G01R33/343 ,  G01R33/3635

摘要： A resonator structure including a first resonator having a first resonator loop formed by a hollow channel with conductive walls and a second resonator having a second resonator loop formed by a hollow channel with conductive walls. The first resonator loop and the second resonator loop intersect so that the first and second resonator loops are substantially shielded to prevent coupling of high frequency energy between the first and second resonator loops. A sample is placed in a space defined by the intersection of the first and second resonator loops. High frequency energy is applied to the first resonator. The angle at which the second resonator loop intersects the first resonator loop is selected to substantially decouple the first resonator from the second resonator. A detector circuit detects the high frequency energy in the second resonator loop and supplies the detected signal for subsequent analysis.

摘要翻译： 一种谐振器结构，包括具有由具有导电壁的中空通道形成的第一谐振器回路的第一谐振器和具有由具有导电壁的中空通道形成的第二谐振器回路的第二谐振器。 第一谐振器环路和第二谐振器环路相交，使得第一和第二谐振器回路基本上被屏蔽，以防止第一和第二谐振器回路之间的高频能量耦合。 将样品放置在由第一和第二谐振器回路相交处限定的空间中。 向第一谐振器施加高频能量。 选择第二谐振器环路与第一谐振器环路相交的角度以使第一谐振器与第二谐振器基本上分离。 检测器电路检测第二谐振器回路中的高频能量，并提供检测信号用于后续分析。