-
公开(公告)号：US20080197276A1
公开(公告)日：2008-08-21
申请号：US11781072
申请日：2007-07-20
IPC分类号： B01D59/44
CPC分类号： H01J49/408
摘要： An ion optical system to form a loop orbit is provided to sufficiently ensure required performance such as ion transmission efficiency while making it easy to design the system by alleviating a space-focusing condition. The loop orbit of the ion optical system is realized so as to satisfy (t|x)=(t|α)=(t|δ)=0 as the time-focusing condition and to satisfy −2
摘要翻译： 提供形成环轨道的离子光学系统，以充分确保所需的性能，例如离子传输效率，同时通过减轻空间聚焦条件容易地设计系统。 实现离子光学系统的环路轨迹，以满足（t | x）=（t |α）=（t | delta）= 0作为时间聚焦条件，并满足-2 <（x | x） +（α|α）<2和-2 <（y | y）+（β|β）<2作为空间聚焦条件。 （x | x）和其他类似术语是由离子光学系统的通用表达式格式由括号中指示的元素确定的常数。 （x | x），（α|α），（y | y）和（β|β）中的每一个需要为±1时，条件相当于常规的空间聚焦条件。 因此，决定离子光学系统配置的电极形状的参数具有更高的自由度。
-
公开(公告)号：US07405505B2
公开(公告)日：2008-07-29
申请号：US10567354
申请日：2004-08-05
IPC分类号： H02K5/04
摘要： A rotary electric machine includes a frame; a stator whose stator-slot number Ns is 12; a rotor whose rotor-pole number Np is 8, the rotor being disposed inside the stator. The frame has a frame thickness T(θ) at mechanical angle θ, with respect to a reference line that connects the inner circumferential center of the frame with an arbitrary point, other than the center, around the center that is circularly expanded in a Fourier series. The difference between the stator-slot number Ns and the rotor-pole number Np is k (=|Ns−Np|). Stress-relieving spaces and are located in portions of the frame in an arrangement that does not have 90-degree mechanical angle rotational symmetry, in such a way that the sum P of inclusion ratios for the k-th component Tk and the Np-th component TNp, which are the Fourier series expansion coefficients for the frame thickness T(θ) expressed by equation (2) P = ( T k + T N p ) / ∑ n = 0 ∞ T n × 100 [ % ] , ( 2 ) is less than 12%. According to this configuration, mechanical strength of the frame and its producibility are maintained, and cogging torque caused by magnetic-circuit distortion in an iron core generated due to the frame shape is also reduced.
-
公开(公告)号：US20080106164A1
公开(公告)日：2008-05-08
申请号：US10567354
申请日：2004-08-05
IPC分类号： H02K5/04
摘要： A rotary electric machine includes a frame; a stator whose stator-slot number Ns is 12; a rotor whose rotor-pole number Np is 8, the rotor being disposed inside the stator. The frame has a frame thickness T(θ) at mechanical angle θ, with respect to a reference line that connects the inner circumferential center of the frame with an arbitrary point, other than the center, around the center that is circularly expanded in a Fourier series. The difference between the stator-slot number Ns and the rotor-pole number Np is k (=|Ns−Np|). Stress-relieving spaces are located in portions of the frame in an arrangement that does not have 90-degree mechanical angle rotational symmetry, in such a way that the sum P of inclusion ratios for the k-th component Tk and the Np-th component TNp, which are the Fourier series expansion coefficients for the frame thickness T(θ) expressed by equation (2). P = ( T k + T N p ) / ∑ n = 0 ∞ T n × 100 [ % ] ( 2 ) , is less than 12%. According to this configuration, mechanical strength of the frame and its producibility are maintained, and cogging torque caused by magnetic-circuit distortion in an iron core generated due to the frame shape is also reduced.
-
公开(公告)号：US07342338B2
公开(公告)日：2008-03-11
申请号：US10500624
申请日：2003-04-11
CPC分类号： H02K1/278 , H02K29/03 , H02K2201/06
摘要： A permanent magnet electric motor 10 comprises a rotor 30 provided with two stages of permanent magnets in the axial direction on an outer circumferential face of a rotor iron core, and having a shaft shifted by a stage skew angle θr in electrical angle to decrease a first frequency component of cogging torque in the circumferential direction of the rotor iron core between two stages of the permanent magnets, a stator iron core 21 of cylindrical shape provided with the stator winding for producing a rotating magnetic field causing the rotor 30 to be rotated, and a stator 20 dividing the stator iron core 21 into plural blocks in the axial direction, and shifted by a stage skew angle θs in electrical angle to decrease a second frequency component of the cogging torque in the circumferential direction of the stator iron core 21.
摘要翻译： 永磁电动机10包括：转子30，其在转子铁芯的外周面上沿轴向设置有两级永磁体，并且具有以电角度偏移阶段倾斜角度的轴，以减少第一 在转子铁芯的两个阶段的永久磁铁的周向上的齿槽转矩的频率分量，具有定子绕组的圆筒形的定子铁芯21，用于产生使转子30旋转的旋转磁场，以及 定子20将定子铁芯21沿轴向分割为多个块，并且以电角度偏移台斜面角度，以减小定子铁芯21的圆周方向上的齿槽转矩的第二频率分量。
-
公开(公告)号：US07250600B2
公开(公告)日：2007-07-31
申请号：US10923822
申请日：2004-08-24
申请人： Shinichi Yamaguchi , Eizo Kawato
发明人： Shinichi Yamaguchi , Eizo Kawato
CPC分类号： H01J49/424 , H01J49/40
摘要： In the mass spectrometer of the present invention, the controller controls the time of changing the voltage applied to the electrode or electrodes of the ion trap from the ion trapping voltage to the ion ejecting voltage according to the polarity of the electric charge of ions to be ejected from the ion trap. Since positively charged ions and negatively charged ions move in the same direction if the phases of the RF voltage for generating the ion trapping electric field in the ion trap are reversed, the controller may reverse the phase of the RF voltage for trapping ions according to the polarity of the electric charge of ions when the ion ejecting time is fixed, irrespective of the polarity of the electric charge of ions to be ejected. Alternatively, the controller may change the ion ejecting time by half a cycle of the RF voltage depending on the polarity of the electric charge of ions when the ion trapping RF voltage is maintained the same. Owing to such a control, the ions are ejected when they are converging or are converged in the ion trap irrespective of the polarity of the electric charge of the ions. This minimizes the variation in the starting point of ions ejected from the ion trap, and reduces errors in their flight time in the subsequent TOF-MS, whereby the accuracy of the mass analysis is improved and the mass resolution is enhanced.
摘要翻译： 在本发明的质谱仪中，控制器根据离子电荷的极性控制将离子阱的电极或电极的电压从离子捕获电压改变为离子喷射电压的时间， 从离子阱排出。 由于如果用于产生离子阱中的离子俘获电场的RF电压的相位相反，因为带正电荷的离子和带负电荷的离子在相同的方向上移动，所以控制器可以根据 离子喷射时间固定时的离子电荷的极性，而与要喷射的离子的电荷的极性无关。 或者，当离子捕获RF电压保持相同时，控制器可以根据离子电荷的极性将离子喷射时间改变为RF电压的半个周期。 由于这样的控制，离子在它们会聚或会聚在离子阱中时被排出，而与离子的电荷的极性无关。 这样可以最大程度地减少从离子阱排出的离子起始点的变化，并减少随后的TOF-MS中其飞行时间的误差，从而提高质量分析的精度，提高质量分辨率。
-
公开(公告)号：US07232991B2
公开(公告)日：2007-06-19
申请号：US11122063
申请日：2005-05-05
申请人： Shinichi Yamaguchi
发明人： Shinichi Yamaguchi
IPC分类号： B01D59/44
CPC分类号： H01J49/408
摘要： In the mass spectrometer of the present invention, first the length of flight time of a known ion is measured at every turn of the loop orbit. Ideally, the length of flight time at every turn is equal to one calculated based on the speed of the ion and the path length of the loop orbit, but an actual length of flight time deviates from it in a reproducible fashion. Thus, in the present invention, the deviation information is stored in the correction memory at every turn. In measuring an unknown ion, the unknown ion is made to fly the loop orbit a predetermined number of times. Then the flight time of the unknown ion that has flown the loop orbit a predetermined number of turns is measured, and the deviations of the flight time at the turns are corrected using the correction data stored in the correction memory. The mass to charge ratio of the unknown ion is calculated based on the corrected flight time. Thus the deviation of the actual flight time from the theoretical or ideal one is canceled, and the calculated mass to charge ratio becomes more precise.
摘要翻译： 在本发明的质谱仪中，首先在环路轨道的每一圈测量已知离子的飞行时间长度。 理想情况下，每转的飞行时间长度等于基于离子速度和回路轨道路径长度计算的飞行时间长度，但实际的飞行时间长度以可重现的方式偏离。 因此，在本发明中，偏差信息每转一次存储在校正存储器中。 在测量未知离子时，使未知的离子在环路轨道上飞行预定次数。 然后测量已经在环路轨道上行驶预定匝数的未知离子的飞行时间，并且使用存储在校正存储器中的校正数据来校正匝数上的飞行时间的偏差。 基于校正的飞行时间计算未知离子的质荷比。 因此，实际飞行时间与理论值或理想飞行时间的偏差被消除，计算出的质荷比变得更加精确。
-
公开(公告)号：US07227131B2
公开(公告)日：2007-06-05
申请号：US10929768
申请日：2004-08-31
IPC分类号： H01J49/40
CPC分类号： H01J49/408 , H01J49/406
摘要： A time of flight type mass spectrometer (TOF-MS) of the present invention includes: a flight space containing a loop orbit on which ions fly once or more than once; a flight controller for making ions of a same mass to charge ratio fly the loop orbit at several values of number of turns; a flight time measurer for measuring a length of flight time of the ions; and a processor for determining the mass to charge ratio of the ions based on a relationship between the value of number of turns and the length of flight time of the ions. The speed of ions flying a loop orbit depends on their mass to charge ratios. For ions of the same mass to charge ratio, the difference between the lengths of flight time of the ions flying the loop orbit N turns and of the ions flying the loop orbit N+1 turns depends on the speed of the ions, so that the difference depends on the mass to charge ratio of the ions. The difference in the length of flight time is unrelated to the variation in the starting time (jitter), variation in the detection timing (jitter), etc, so that the value of the mass to charge ratio can be precisely determined free from errors caused by such disturbing factors.
摘要翻译： 本发明的飞行时间型质谱仪（TOF-MS）包括：包含离子飞行一次或多次的循环轨道的飞行空间; 用于使相同质荷比的离子的飞行控制器以匝数的几个值飞行环路轨道; 用于测量离子的飞行时间长度的飞行时间测量器; 以及用于基于匝数与离子的飞行时间长度之间的关系来确定离子的质荷比的处理器。 飞行环路轨道的离子速度取决于其质荷比。 对于相同质荷比的离子，飞越环轨道N圈的离子的飞行时间长度和飞行环轨道N + 1圈的离子之间的差异取决于离子的速度，因此 差异取决于离子的质荷比。 飞行时间长度的差异与启动时间（抖动）的变化，检测定时（抖动）等的变化无关，从而可以精确地确定质荷比值，从而避免误差 受到这样的扰乱因素。
-
公开(公告)号：US07211792B2
公开(公告)日：2007-05-01
申请号：US11032002
申请日：2005-01-11
CPC分类号： H01J49/408
摘要： In the mass spectrometer of the present invention, a flight space is provided before the mass analyzer, and the flight space includes a loop orbit on which ions fly repeatedly. While ions fly on the loop orbit repeatedly, ion selecting electrodes placed on the loop orbit selects object ions having a specific mass to charge ratio in such a manner that, for a limited time period when the object ions are flying through the ion selecting electrodes, an appropriate voltage is applied to the ion selecting electrodes to make them continue to fly on the loop orbit, but otherwise to make or let other ions deflect from the loop orbit. If ions having various mass to charge ratios are introduced in the loop orbit almost at the same time, the object ions having the same mass to charge ratio continue to fly on the loop orbit in a band, but ions having mass to charge ratios different from that are separated from the object ions while flying on the loop orbit repeatedly. Even if the difference in the mass to charge ratio is small, the separation becomes large when the number of turns of the flight becomes large. After such a separation is adequately achieved, the ion selecting electrodes can select the object ions with high selectivity, or at high mass resolution. By adding dissociating means, fragment ions originated only from the selected object ions can be analyzed, which enables the identification and structural analysis of the sample at high accuracy.
摘要翻译： 在本发明的质谱仪中，在质量分析器之前提供飞行空间，并且飞行空间包括离子重复飞行的环轨道。 当离子重复地在环路轨道上飞行时，放置在环路轨道上的离子选择电极以这样的方式选择具有特定质荷比的物体离子，使得在物体离子飞过离子选择电极的有限时间段内， 对离子选择电极施加适当的电压使它们继续在环轨道上飞行，而另外使其它离子从环轨道偏转。 如果几乎同时在环路轨道中引入具有各种质荷比的离子，则具有相同质荷比的物体离子在带内的环路轨道上继续飞行，但质量与电荷比的离子不同于 它们与物体离子分离，同时在环路轨道上重复飞行。 即使质荷比的差小，当飞行匝数变大时，分离也变大。 在这种分离充分实现之后，离子选择电极可以以高选择性或高质量分辨率选择目标离子。 通过添加解离手段，可以分析仅从所选择的对象离子产生的碎片离子，这使得能够高精度地鉴定和结构分析样品。
-
公开(公告)号：US07148473B2
公开(公告)日：2006-12-12
申请号：US10929770
申请日：2004-08-31
IPC分类号： H01J49/40
CPC分类号： H01J49/408 , H01J49/027
摘要： In a time of flight mass spectrometer (TOF-MS) of the present invention, a flight controller makes ions fly a loop orbit a predetermined number of turns, and an ion detector detects the ions at each turn of the flight. A flight time measurer measures the length of flight time of ions of a same mass to charge ratio at every turn, and a data processor constructs a spectrum of flight time. The data processor further computes the Fourier transformation of the spectrum, and determines the mass to charge ratio of the ions based on a frequency peak appearing in the Fourier transformation.
摘要翻译： 在本发明的飞行时间质谱仪（TOF-MS）中，飞行控制器使离子飞行预定匝数的环路轨道，并且离子检测器在飞行的每一回合处检测离子。 飞行时间测量器可以测量每一回合具有相同质荷比的离子的飞行时间长度，并且数据处理器构建飞行时间谱。 数据处理器进一步计算光谱的傅立叶变换，并且基于在傅立叶变换中出现的频率峰值来确定离子的质荷比。
-
公开(公告)号：US07038198B2
公开(公告)日：2006-05-02
申请号：US10957642
申请日：2004-10-05
IPC分类号： H01J49/40
CPC分类号： H01J49/0036 , H01J49/408
摘要： A mass spectrometer includes a flight control device for allowing ions from an ion source to repeatedly fly along an orbit in a flight space for predetermined times; a detecting device for detecting the ions after the ions repeatedly fly along the orbit for the predetermined times; and a data processing device for starting collection of ion strength data detected by the detecting device. The ion strength data is obtained during the flight of the ions along the orbit, or when the ions are headed toward the detecting device after departing from the orbit, or when one of the above situations is estimated.
摘要翻译： 质谱仪包括用于允许来自离子源的离子在飞行空间中沿着轨道重复飞行预定次数的飞行控制装置; 检测装置，用于在离子重复沿着轨道飞行预定时间之后检测离子; 以及用于开始由检测装置检测的离子强度数据的收集的数据处理装置。 离子强度数据是在沿着轨道的离子飞行过程中获得的，或者离子离开轨道时离子朝向检测装置，或当估计出上述情况之一时获得。
-
-
-
-
-
-
-
-
-
搜索结果
150 条记录 (耗时 0.031 秒)
