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1. 发明公开

EP0451962A3 Methods and apparatus for investigating the composition of material 失效
标题翻译：用于调查材料组成的方法和装置
公开(公告)号：EP0451962A3
公开(公告)日：1992-01-08
申请号：EP91302137.4
申请日：1991-03-13
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert
IPC分类号： G01N24/08
CPC分类号： G01R33/44
摘要： A method of determining the proportions of different components of material in a duct (7) comprises exciting nuclear magnetic spins of nuclei of a species common to said components in a region of the duct (7) and utilising the resulting free induction decay (FID) from each of said components to determine said proportions. In one particular method, the nuclear spins are excited simultaneously in the components and the proportions are determined by deriving a signal representative of the resultant of the FID signals due to said components and measuring the phase of the derived signal relative to a datum. In another particular method, nuclear magnetic spins are separately excited and the resulting FID measured for each component at different times. The method finds particular application for measuring the proportions of oil and water in material obtained from a sub-sea oil well.

2. 发明公开

EP0311294A3 Magnet systems 失效
标题翻译：磁系统
公开(公告)号：EP0311294A3
公开(公告)日：1990-08-22
申请号：EP88308987.2
申请日：1988-09-28
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert
IPC分类号： G01N24/06
CPC分类号： G01R33/3806 , G01R33/385
摘要： A magnet system (1) for a nuclear magnetic resonance (NMR) apparatus comprising a magnetic core arrangement (7, 13, 15) shaped to provide two or more discrete gaps (3, 5) in which objects to be imaged may be placed, the magnetic field across each gap being produced by a single drive coil arrangement (9) associated with the core arrangement. A system providing gaps, e.g. of different sizes, for different types of NMR examination is thus provided at relatively low cost compared with using a separate magnet system for each type of examination.

3. 发明公开

EP0451962A2 Methods and apparatus for investigating the composition of material 失效
标题翻译： Verfahren und Apparat zur Untersuchung der Komposition von Stoffen。
公开(公告)号：EP0451962A2
公开(公告)日：1991-10-16
申请号：EP91302137.4
申请日：1991-03-13
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert
IPC分类号： G01N24/08
CPC分类号： G01R33/44
摘要： A method of determining the proportions of different components of material in a duct (7) comprises exciting nuclear magnetic spins of nuclei of a species common to said components in a region of the duct (7) and utilising the resulting free induction decay (FID) from each of said components to determine said proportions.
In one particular method, the nuclear spins are excited simultaneously in the components and the proportions are determined by deriving a signal representative of the resultant of the FID signals due to said components and measuring the phase of the derived signal relative to a datum.
In another particular method, nuclear magnetic spins are separately excited and the resulting FID measured for each component at different times.
The method finds particular application for measuring the proportions of oil and water in material obtained from a sub-sea oil well.
摘要翻译：确定管道（7）中材料的不同组分的比例的方法包括在管道（7）的区域中激发所述组分共同的物种的核的核磁自旋，并利用所得到的自由诱导衰减（FID）从每个所述组分确定所述比例。在一种特定方法中，核自旋在组件中同时被激发，并且通过由于所述分量导出代表FID信号的结果的信号并且测量相对于基准的导出信号的相位来确定比例。在另一个特定的方法中，分别激励核磁自旋，并且在不同时间测量所得到的FID对每个组分的FID。该方法特别适用于从海底油井获得的材料中测量油和水的比例。

4. 发明公开

EP0318257A2 Coil arrangements for magnetic resonance apparatus 失效
标题翻译： Spulenanordnungenfüreinen magnetischen Resonanzapparat。
公开(公告)号：EP0318257A2
公开(公告)日：1989-05-31
申请号：EP88311061.1
申请日：1988-11-23
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert , Hall, Alasdair Stewart
IPC分类号： G01R33/34
CPC分类号： G01R33/34061 , G01R33/34007 , G01R33/34084 , G01R33/383
摘要： An RF coil arrangement (23) in a magnetic resonance apparatus wherein a static magnetic field for application to a body under examination is produced in a gap (3) between a pair of pole pieces (5). The RF coil arrangement comprises at least one coil (45 or 47) having a first part (49, 51) fixedly secured to a part (5) of the apparatus adjacent the gap and a further part (53) which is detachably electrically connected to the first part to provide easy access to the gap when placing in, or removing from, the gap a body to be imaged. The further part of the coil may be wholly detachable from the first part or pivotally mounted on a first portion (49) of the first part and detachable from a second portion (51) of the first part on pivotal movement of the further part with respect to the first portion of the first part.
摘要翻译：在磁共振装置中的RF线圈装置（23），其中在一对极片（5）之间的间隙（3）中产生用于施加到被检体的静磁场。 RF线圈装置包括至少一个线圈（45或47），其具有固定地固定到邻近该间隙的设备的部分（5）的第一部分（49,51）和另一部分（53），该另一部分（53）可拆卸地电连接到第一部分在放置或移除要成像的身体的间隙时提供容易获得间隙的部分。线圈的另一部分可以从第一部分完全可拆卸或枢转地安装在第一部分的第一部分（49）上，并且可以从另一部分的第二部分（51）的另一部分的枢转运动相对于到第一部分的第一部分。

5. 发明公开

EP0311294A2 Magnet systems 失效
标题翻译：磁铁。
公开(公告)号：EP0311294A2
公开(公告)日：1989-04-12
申请号：EP88308987.2
申请日：1988-09-28
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert
IPC分类号： G01N24/06
CPC分类号： G01R33/3806 , G01R33/385
摘要： A magnet system (1) for a nuclear magnetic resonance (NMR) apparatus comprising a magnetic core arrangement (7, 13, 15) shaped to provide two or more discrete gaps (3, 5) in which objects to be imaged may be placed, the magnetic field across each gap being produced by a single drive coil arrangement (9) associated with the core arrangement. A system providing gaps, e.g. of different sizes, for different types of NMR examination is thus provided at relatively low cost compared with using a separate magnet system for each type of examination.
摘要翻译：一种用于核磁共振（NMR）装置的磁体系统（1），包括形成为提供两个或更多个离散间隙（3,5）的磁芯布置（7,13,15），其中可以放置要成像的物体，跨越每个间隙的磁场由与核心装置相关联的单个驱动线圈装置（9）产生。提供间隙的系统，例如因此，对于不同类型的核磁共振检查，与使用用于每种检查的单独的磁体系统相比，以相对低的成本提供不同尺寸。

6. 发明授权

EP0318257B1 Coil arrangements for magnetic resonance apparatus 失效
标题翻译：用于磁共振装置的线圈布置。
公开(公告)号：EP0318257B1
公开(公告)日：1994-09-14
申请号：EP88311061.1
申请日：1988-11-23
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert , Hall, Alasdair Stewart
IPC分类号： G01R33/34
CPC分类号： G01R33/34061 , G01R33/34007 , G01R33/34084 , G01R33/383

7. 发明公开

EP0318257A3 Coil arrangements for magnetic resonance apparatus 失效
标题翻译：磁共振装置的线圈安装
公开(公告)号：EP0318257A3
公开(公告)日：1990-07-04
申请号：EP88311061.1
申请日：1988-11-23
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Young, Ian Robert , Hall, Alasdair Stewart
IPC分类号： G01R33/34
CPC分类号： G01R33/34061 , G01R33/34007 , G01R33/34084 , G01R33/383
摘要： An RF coil arrangement (23) in a magnetic resonance apparatus wherein a static magnetic field for application to a body under examination is produced in a gap (3) between a pair of pole pieces (5). The RF coil arrangement comprises at least one coil (45 or 47) having a first part (49, 51) fixedly secured to a part (5) of the apparatus adjacent the gap and a further part (53) which is detachably electrically connected to the first part to provide easy access to the gap when placing in, or removing from, the gap a body to be imaged. The further part of the coil may be wholly detachable from the first part or pivotally mounted on a first portion (49) of the first part and detachable from a second portion (51) of the first part on pivotal movement of the further part with respect to the first portion of the first part.

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