公开(公告)号：US4855593A

公开(公告)日：1989-08-08

申请号：US198975

申请日：1988-05-26

Applicant: Geoffrey Bodenhausen ,  Peter E. Pfandler ,  Jacques Rapin ,  Tino Gaumann ,  Raymond Houriet

Inventor： Geoffrey Bodenhausen ,  Peter E. Pfandler ,  Jacques Rapin ,  Tino Gaumann ,  Raymond Houriet

IPC: G01R33/64 ,  G01N24/14 ,  G01N27/62 ,  H01J49/38 ,  H01J49/44

CPC classification number: H01J49/38

Abstract: Ion cyclotron resonance is an important method used in mass spectroscopy. Examinations for determining the reactions between substances by means of the two-dimensional ICR method are carried out using the following measuring sequence:P.sub.1 -t.sub.1 -P.sub.2 -T.sub.m -P.sub.3 -t.sub.2,wherein P.sub.1, P.sub.2 and P.sub.3 are rf pulses, with the rf pulses P.sub.1 and P.sub.2 having the same frequency, t.sub.1 and T.sub.m are time intervals between the pulses and t.sub.2 is the observation time following the last pulse. This measuring sequence is repeated several times while varying t.sub.1. In this manner, a plurality of induction signals recorded during the time t.sub.2 is obtained, from which then a two-dimensional spectrum is derived by transformation from the time domain into the frequency domain. The transformation from the time domain to the frequency domain can be effected by two-dimensional Fourier transformation, or with the aid of the method of maximum entropy.

Abstract translation: 离子回旋共振是质谱中使用的重要方法。 通过二维ICR方法测定物质之间的反应的检查使用以下测量顺序进行：P1-t1-P2-Tm-P3-t2，其中P1，P2和P3是rf脉冲，其中rf 具有相同频率的脉冲P1和P2，t1和Tm是脉冲之间的时间间隔，t2是最后脉冲之后的观察时间。 在测量t1时，重复该测量序列数次。 以这种方式，获得在时间t2期间记录的多个感应信号，然后通过从时域到频域的变换导出二维频谱。 从时域到频域的变换可以通过二维傅里叶变换，或借助于最大熵的方法来实现。

公开(公告)号：US5006683A

公开(公告)日：1991-04-09

申请号：US491430

申请日：1990-03-09

Applicant: Jacques Rapin ,  Philippe Vaillant

Inventor： Jacques Rapin ,  Philippe Vaillant

IPC: H05B6/10 ,  H05B6/02 ,  H05B6/36

CPC classification number: H05B6/108

Abstract: The device is a transformer comprising a magnetic circuit (22) in the form of a closed frame having four parallel columns (23, 24, 25a, 25b) and two primary windings (26a, 26b), each arranged around an inner column of the frame (22). The windings (26a, 26b) are connected at one end to a first phase (P1) and a third phase (P3) respectively and at their other end to a second phase (P2) of the three-phase current source (27). The pipeline (28) comprises a closed circuit consisting of three branched tubular arms (29a, 29b, 29c), each passing through a gap between two columns (23, 24, 25a, 25b) of the frame of the magnetic circuit, the inner columns (25a, 25b) being surrounded by an electrical windings (26a, 26b).

Abstract translation: 该装置是包括具有四个平行列（23,24,25a，25b）和两个初级绕组（26a，26b）的闭合框形式的磁路（22）的变压器，每个绕组围绕着 框架（22）。 绕组（26a，26b）的一端分别连接到第一相（P1）和第三相（P3），并在另一端连接到三相电流源（27）的第二相（P2）。 管道（28）包括由三个分支的管状臂（29a，29b，29c）构成的闭合回路，每个分支的管状臂通过磁路的框架的两个柱（23,24,25a，25b）之间的间隙，内部 列（25a，25b）被电绕组（26a，26b）包围。