Apparatus and probe head for determining a quantitative property of a sample substance by means of magnetic resonance
    1.
    发明申请
    Apparatus and probe head for determining a quantitative property of a sample substance by means of magnetic resonance 有权
    用于通过磁共振确定样品物质的定量性质的装置和探针头

    公开(公告)号:US20060192557A1

    公开(公告)日:2006-08-31

    申请号:US11346613

    申请日:2006-02-02

    IPC分类号: G01V3/00

    CPC分类号: G01N24/08 G01R33/30

    摘要: An apparatus for determining a quantitative property of a sample substance by means of magnetic resonance is disclosed. The apparatus comprises a conveyor for conveying sample containers containing the sample substance through a measuring station. The measuring station comprises a magnet system for generating a constant magnetic field of high homogeneity. The measuring station, further, comprises a probe head adapted for letting sample containers be conveyed therethrough and for generating a high frequency magnetic field. A magnetic resonance measuring unit determines the quantitative property of the sample substance contained in the probe head. The probe head excites and detects, resp., the magnetic resonance essentially only within that section of the sample container which contains the sample substance. The probe head comprises a split-ring resonator which, as seen in a conveying direction of the conveyor, has a passage cross-section for letting run the sample containers therethrough. The high frequency magnetic field is generated essentially only in an area of the passage cross-section through which the sample containers run during conveying.

    摘要翻译: 公开了一种用于通过磁共振确定样品物质的定量性质的装置。 该装置包括用于通过测量站传送包含样品物质的样品容器的输送机。 测量站包括用于产生高均匀性的恒定磁场的磁体系统。 此外,测量站还包括探头,其适于使样品容器通过其传送并产生高频磁场。 磁共振测量单元确定包含在探头中的样品物质的定量性质。 探针头基本上仅在包含样品物质的样品容器的该部分内激发和检测磁共振。 探头包括开环谐振器,从输送机的输送方向看,该环形谐振器具有用于使样品容器通过的通道横截面。 高频磁场基本上仅在样品容器在传送过程中运行的通道横截面的区域中产生。

    Resonator for electron spin resonance spectroscopy
    2.
    发明授权
    Resonator for electron spin resonance spectroscopy 失效
    电子共振光谱分析仪

    公开(公告)号:US5212449A

    公开(公告)日:1993-05-18

    申请号:US847899

    申请日:1992-03-06

    IPC分类号: G01R33/345

    CPC分类号: G01R33/345

    摘要: A resonator is provided for electron spin resonance spectroscopy. The resonator comprises walls defining a cavity. In the cavity, a predetermined oscillation mode of a preselectable frequency, in particular in the Q band, is capable of propagating. The walls are provided with an opening for irradiating a radiation, in particular light rays. The cavity has a cylindrical shape. An oscillation mode of the type TE.sub.01n is excited, with n being greater than one. The opening is configured as an annular slot extending substantially all around the cylindrical jacket, which defines the cavity, in a radial plane at a distance of m L/4 from a radial end wall delimiting the cavity, and m is an odd number and greater than one (FIG. 2).

    摘要翻译: 提供了用于电子自旋共振光谱的谐振器。 谐振器包括限定空腔的壁。 在空腔中,特别是在Q波段中的可预选频率的预定振荡模式能够传播。 壁设置有用于照射辐射的开口,特别是光线。 空腔具有圆柱形。 激发类型TE01n的振荡模式,其中n大于1。 开口被构造为环形槽,其基本上全部围绕限定空腔的圆柱形套管延伸,在距离限定空腔的径向端壁距离m L / 4的径向平面中,并且m是奇数和更大的 (图2)。

    Specimen head for electron spin resonance and paramagnetic electron
resonance measurements
    3.
    发明授权
    Specimen head for electron spin resonance and paramagnetic electron resonance measurements 失效
    电子自旋共振和顺磁电子共振测量的样品头

    公开(公告)号:US4437063A

    公开(公告)日:1984-03-13

    申请号:US288582

    申请日:1981-07-30

    CPC分类号: G01R33/345

    摘要: A specimen head for electron spin resonance and paramagnetic electron resonance measurements, having an annularly cylindrical resonator, with a waveguide being coupled to one of its end walls in such a manner as to excite an H.sub.011 wave. The other end wall is formed by a piston capable of being shifted for tuning, the piston being attached at the end of a hollow piston rod (6) mounted in a bearing block (4), which also contains the resonator (16), in such a manner that it is concentric relative to the axis of the resonator and longitudinally shiftable. The waveguide (13) is attached to the bearing block (4) on that side of the resonator (16) which is opposite the piston (7) and extends along the outside of the bearing block parallel to the piston rod (6) after having been deflected 180.degree.. Drive shafts (24, 34) for means for shifting the piston (7) and means for altering the coupling of the waveguide (13) are arranged on that side of the piston rod (6) opposite the waveguide (13) in the plane containing the axes of the waveguide and the piston rod (6) and are mounted in or on the bearing block (4). The bearing block (4) is attached to a head member (1) by means of rods (3) extending parallel to the waveguide (13) and to the drive shafts (24, 34), with the free end of the waveguide (13) being attached thereto and the free ends of the drive shafts (24, 34) being mounted therein, and having a hole (48) which is concentric relative to the piston rod (6).

    摘要翻译: 用于电子自旋共振和顺磁电子共振测量的样品头,具有环形圆柱形谐振器,波导以激发H011波的方式耦合到其端壁之一。 另一端壁由能够移动调节的活塞形成,活塞附接在安装在轴承座(4)中的中空活塞杆(6)的端部,轴承座(4)中还包含谐振器(16) 这种方式使得其相对于谐振器的轴线是同心的并可纵向移位。 波导13连接在谐振器16的与活塞7相对的侧面上的轴承座4上,并在轴承座的外侧平行于活塞杆6延伸, 偏转180°。 用于移动活塞(7)的装置的驱动轴(24,34)和用于改变波导(13)的联接的装置布置在活动杆(6)的与波导(13)相对的侧面上,该平面包含 波导和活塞杆(6)的轴线并安装在轴承座(4)中或轴承座(4)上。 轴承座(4)通过平行于波导(13)延伸的杆(3)和驱动轴(24,34)连接到头部构件(1)上,波导管13的自由端 ),并且驱动轴(24,34)的自由端安装在其中,并且具有相对于活塞杆(6)同心的孔(48)。

    Method and apparatus for investigating the imperishability of liquid foodstuffs by means of electron spin resonance
    4.
    发明授权
    Method and apparatus for investigating the imperishability of liquid foodstuffs by means of electron spin resonance 有权
    通过电子自旋共振研究液体食品的不均匀性的方法和装置

    公开(公告)号:US06462546B1

    公开(公告)日:2002-10-08

    申请号:US09700929

    申请日:2000-11-21

    IPC分类号: G01V300

    CPC分类号: G01R33/307 G01R33/60

    摘要: A method and an apparatus for investigating the imperishability of n liquid foodstuffs using electron spin resonance (ESR) exposes samples of the foodstuffs to an elevated temperature for an extended time-period. At predetermined intervals during the period, the intensity of an ESR signal of each sample is measured and plotted vs. time in a diagram for that sample. The time of a superproportional increase in intensity is detected for each foodstuff. The number n of different foodstuffs is determined by dividing the predetermined interval by the measurement time. The n samples are investigated simultaneously by sequentially cycling the n samples through a common sample vessel. Each time, the intensity of the ESR signal of the sample is measured and then plotted in a diagram unique to that foodstuff. The sequence of foodstuffs are cycled through the sample vessel until a predetermined number m of measuring points per foodstuff has been attained.

    摘要翻译: 使用电子自旋共振(ESR)研究n种液体食品不均匀性的方法和装置将食品样品暴露于升高的温度下延长时间。 在该期间的预定间隔,测量每个样品的ESR信号的强度,并对该样品的图中的时间作图。 每种食品都会检测到强度超比例增加的时间。 通过将预定间隔除以测量时间来确定不同食物的数量n。 通过将n个样品顺序循环通过普通的样品容器来同时研究n个样品。 每次测量样品的ESR信号的强度,然后绘制在该食品独特的图中。 食物的顺序循环通过样品容器,直到达到每个食物预定数量的测量点。

    Resonator arrangement for electron spin resonance spectroscopy
    5.
    发明授权
    Resonator arrangement for electron spin resonance spectroscopy 失效
    用于电子自旋共振光谱的谐振器布置

    公开(公告)号:US5347219A

    公开(公告)日:1994-09-13

    申请号:US923040

    申请日:1992-07-31

    IPC分类号: G01R33/345 G01R33/20

    CPC分类号: G01R33/345

    摘要: A resonator arrangement 10 serves for electron spin resonance spectroscopy. It comprises an upper carrier plate 30, a long center portion 32, 33, 40, 41 and a lower resonator section 45, 46, 47. In the area of the center portion 32, 33, 40, 41, there is provided at least one separating plane 50, 51 along which the resonator arrangement 10 can be divided into an upper part 52 and a lower part 52, it being possible to connect a plurality of different lower parts 53 to one and the same upper part 52.

    摘要翻译: 谐振器装置10用于电子自旋共振光谱。 它包括上承载板30,长中心部分32,33,40,41和下共振器部分45,46,47。在中心部分32,33,40,41的区域中,至少提供 一个分离平面50,51,谐振器装置10可以沿着该分离平面分成上部52和下部52,可以将多个不同的下部53连接到同一个上部52。

    Resonator for electron spin resonance spectroscopy
    6.
    发明授权
    Resonator for electron spin resonance spectroscopy 失效
    用于电子自旋共振光谱的谐振器

    公开(公告)号:US5293120A

    公开(公告)日:1994-03-08

    申请号:US847711

    申请日:1992-03-06

    IPC分类号: G01R33/345 G01R33/20

    CPC分类号: G01R33/345

    摘要: A resonator is provided for electron spin resonance spectroscopy. It comprises a resonant element comprising a cavity, and a predetermined oscillation mode is capable of propagating in the cavity. The resonator comprises further a coupling element comprising a waveguide section. Finally, the resonator is equipped with a tuning arrangement for coupling an electromagnetic wave in the waveguide section with the oscillation mode in the cavity. The tuning arrangement comprises at least one conductive wafer, which is arranged at the free end of a tuning rod projecting into the waveguide section and is adapted for displacement in the direction of a longitudinal axis of the tuning rod. The wafer further coacts with a coupling element disposed between the waveguide section and the cavity. Two wafers are arranged on either side of the coupling element, in the direction of the longitudinal axis, and can be displaced in opposite senses relative to the coupling element.

    摘要翻译: 提供了用于电子自旋共振光谱的谐振器。 它包括一个包括空腔的谐振元件,并且预定的振荡模式能够在空腔中传播。 谐振器还包括一个包括波导部分的耦合元件。 最后,谐振器配备有用于将波导部分中的电磁波与空腔中的振荡模式耦合的调谐装置。 调谐装置包括至少一个导电晶片,其布置在突出到波导部分中的调谐杆的自由端处,并且适于在调谐杆的纵向轴线的方向上移位。 晶片还与设置在波导部分和腔之间的耦合元件共同作用。 两个晶片布置在耦合元件的两侧,沿着纵向轴线的方向,并且可相对于耦合元件以相反的方向移位。

    Test head producing different frequencies for endor-triple experiments
    7.
    发明授权
    Test head producing different frequencies for endor-triple experiments 失效
    测试头产生不同频率进行三次实验

    公开(公告)号:US4315230A

    公开(公告)日:1982-02-09

    申请号:US142652

    申请日:1980-04-22

    IPC分类号: G01R33/345 H01P7/06 H03C7/02

    CPC分类号: H01P7/06 G01R33/345

    摘要: A test head for ENDOR-triple experiments comprising a cylindrical cavity resonator provided with means for exciting the TM.sub.110 mode and a spiral arranged in concentric relation to the cavity axis and connected to the inner conductor of a coaxial line. The walls of the cavity resonator (5) are provided at two diametrically opposite points with projections (4) projecting into the interior of the cavity resonator, consisting preferably of a poorly conductive material and extending over the full height of the cavity resonator. The projections are formed by tubes (14) recessed into the walls of the cavity resonator and enclosing sections (20, 21) of the turns of a modulation coil (19) intended for modulating a D.C. magnetic field (B.sub.0) existing in the cavity resonator in vertical relation to the plane comprising the projections.

    摘要翻译: 用于ENDOR-triple实验的测试头包括具有用于激发TM110模式的装置的圆柱形空腔谐振器和与空腔轴线同心地连接并连接到同轴线的内导体的螺旋线。 空腔谐振器(5)的壁设置在突出到空腔谐振器内部的突起(4)的两个直径相对的点处,优选地由导电不良的材料构成并且在空腔谐振器的整个高度上延伸。 突起由凹入腔谐振器的壁的管(14)和用于调制存在于谐振腔中的DC磁场(B0)的调制线圈(19)的匝的封闭部分(20,21)形成。 垂直于包括突起的平面。

    Resonator apparatus for electron spin resonance (ESR) measurements and method for measuring electron spin resonance (ESR) signals
    8.
    发明授权
    Resonator apparatus for electron spin resonance (ESR) measurements and method for measuring electron spin resonance (ESR) signals 有权
    用于电子自旋共振(ESR)测量的谐振器装置和用于测量电子自旋共振(ESR)信号的方法

    公开(公告)号:US07391212B2

    公开(公告)日:2008-06-24

    申请号:US10197236

    申请日:2002-07-15

    IPC分类号: G01V3/00

    摘要: A resonator apparatus and a method for electron spin resonance (ESR) measurements are disclosed. The resonator apparatus comprises a dielectric resonator and a sample vessel extending through the resonator. The sample vessel is configured as one single flexible tube. Means are provided for conveying a liquid sample substance through the flexible tube. According to the method a liquid sample substance is guided through the sample vessel, wherein the sample substance is gated by cyclically conveying and stopping, resp., a flow of the sample substance. A measurement is conducted within the resonator when the flow of sample substance is stopped.

    摘要翻译: 公开了一种用于电子自旋共振(ESR)测量的谐振器装置和方法。 谐振器装置包括介质谐振器和延伸穿过谐振器的样品容器。 样品容器配置为单个柔性管。 提供用于通过柔性管输送液体样品物质的装置。 根据该方法,液体样品物质被引导通过样品容器,其中通过循环输送和停止或样品物质的流动来选择样品物质。 当样品物质的流动停止时,在谐振器内进行测量。

    Electron spin resonance spectrometer
    9.
    发明授权
    Electron spin resonance spectrometer 失效
    电子自旋共振光谱仪

    公开(公告)号:US4812763A

    公开(公告)日:1989-03-14

    申请号:US123146

    申请日:1987-11-20

    IPC分类号: G01N24/10 G01R33/60 G01R33/20

    CPC分类号: G01R33/60

    摘要: An electron spin resonance spectrometer comprises a resonator containing a sample and arranged in a magnetic field of constant strength and high homogeneity. A microwave bridge can be supplied with microwave energy in the form of an intermittent signal. Measuring signals emitted by the resonator are supplied to a detector and a signal evaluation stage. A line provided between a microwave source and the microwave bridge is subdivided into parallel pulse-shaping channels, one of them containing a phase shifter, an attenuator and a switch for the signal passing through the pulse-shaping channels. In order to be able to set, if possible, an unlimited plurality of pulse sequences for experiments of all kinds, the pulse-shaping channels are supplied in equal proportions from the line by means of a divider. All pulse-shaping channels are provided with a phase shifter and an attenuator. The pulse-shaping channels are re-united by means of a combiner arranged before the input of a common microwave power amplifier.

    摘要翻译: 电子自旋共振光谱仪包括含有样品并且以恒定强度和高均匀性的磁场中布置的谐振器。 微波电源可以以间歇信号的形式提供微波能量。 由谐振器发射的测量信号被提供给检测器和信号评估阶段。 微波源和微波桥之间的一条线被细分成并行的脉冲整形通道,其中一条通道包含一个移相器,一个衰减器和一个用于信号通过脉冲整形通道的开关。 为了能够设定用于各种实验的无限制的多个脉冲序列,脉冲整形信道通过分频器以相等比例从线路提供。 所有脉冲整形通道都配有一个移相器和一个衰减器。 通过布置在公共微波功率放大器的输入之前的组合器来重新组合脉冲整形信道。

    Electron spin resonance spectrometer
    10.
    发明授权
    Electron spin resonance spectrometer 失效
    电子自旋共振光谱仪

    公开(公告)号:US4782297A

    公开(公告)日:1988-11-01

    申请号:US123535

    申请日:1987-11-20

    IPC分类号: G01R33/60 G01R33/20

    CPC分类号: G01R33/60

    摘要: An electron spin resonance spectrometer comprises a resonator arranged in a magnetic field of constant strength and high homogeneity and containing a sample. The resonator can be supplied, via a microwave bridge, with high-power microwave energy in the form of an intermittent signal. Measuring signals emitted by the resonator can be supplied to detector arrangements and signal evaluation arrangements. In order to be able to cut a pulse-shaped output signal of the microwave power amplifier off sharply at its trailing edge, the attenuator is designed as a switching stage comprising a circulator whose input is connected to the output of the microwave power amplifier. A subsequent circulator connection is wired up to a series connection comprising a microwave switching diode that can be switched via a control input and a waveguide termination, and another subsequent circulator connection is connected to the microwave bridge (FIG. 10).

    摘要翻译: 电子自旋共振光谱仪包括设置在恒定强度和高均匀性的磁场中并包含样品的谐振器。 可以通过微波桥将谐振器以间歇信号形式的高功率微波能量提供。 谐振器发射的测量信号可以提供给检测器布置和信号评估装置。 为了能够在其后沿切断微波功率放大器的脉冲状输出信号,衰减器被设计为包括循环器的开关级,输入端连接到微波功率放大器的输出端。 随后的循环器连接被连接到包括微波开关二极管的串联连接,微波开关二极管可以经由控制输入和波导终端进行切换,而另一个后续循环器连接连接到微波桥(图10)。