X-ray CT scanner with two-dimensional X-ray detector having unequal
element pitch in slice-thickness direction
    1.
    发明授权
    X-ray CT scanner with two-dimensional X-ray detector having unequal element pitch in slice-thickness direction 失效
    具有二维X射线检测器的X射线CT扫描仪在切片厚度方向上具有不等间距

    公开(公告)号:US6157696A

    公开(公告)日:2000-12-05

    申请号:US891709

    申请日:1997-07-09

    IPC分类号: A61B6/03 H05G1/60

    摘要: A multi-slice X-ray CT scanner is provided to realize high resolution and a wide scanned region in a slice-thickness direction for an object. In the X-ray CT scanner, an X-ray beam for slice imaging is radiated toward an object and scanned in a predetermined slice-thickness direction, a direction orthogonal to the slice-thickness direction being defined as a channel direction. The scanner comprises a two-dimensional X-ray detector, a data acquisition system, and an electrically combining unit. The detector has a plurality of X-ray detecting elements arranged in a two-dimensional array of both rows in the slice-thickness direction and columns in the channel direction, the detecting elements of each row being arranged in unequal pitches. The data acquisition system has a plurality of data acquiring elements arranged in a two-dimensional array of rows and columns, acquiring signals detected by the two-dimensional X-ray detector, and producing digital data proportional to the detected signals. The electrically combining unit electrically combines more than two columns of all the columns in the array of the X-ray detecting elements into at least two columns of all the columns in the array of the data acquiring elements in accordance with a given slice imaging condition. For example, each row of the array of the data acquiring elements are less in number of elements than each row of the array of the X-ray detecting elements.

    摘要翻译: 提供了一种多切片X射线CT扫描器,以实现对于物体的切片厚度方向的高分辨率和宽扫描区域。 在X射线CT扫描器中,将用于切片成像的X射线束朝向物体照射,并且以预定的切片厚度方向扫描,与切片厚度方向正交的方向被定义为通道方向。 扫描仪包括二维X射线检测器,数据采集系统和电合成单元。 检测器具有多个X射线检测元件,其排列成层厚方向的两列的二维阵列,并且在通道方向上具有列,每行的检测元件以不等间距排列。 数据采集​​系统具有排列成行和列的二维阵列的多个数据获取元件,获取由二维X射线检测器检测的信号,并产生与检测信号成比例的数字数据。 电合成单元根据给定的切片成像条件将X射线检测元件的阵列中的所有列的两列以上的列全部电合成数据获取元件的阵列中的所有列的至少两列。 例如,数据获取元件的阵列的每行比X射线检测元件的阵列的每一行的元素数量少。

    Computed tomography apparatus
    2.
    发明授权
    Computed tomography apparatus 失效
    计算机断层摄影仪

    公开(公告)号:US5583903A

    公开(公告)日:1996-12-10

    申请号:US566158

    申请日:1995-12-01

    IPC分类号: A61B6/03 G01N23/04 G01N23/083

    摘要: In a computed tomography apparatus which irradiates an X-ray ray fan beam to a slice of a subject body from various directions around the slice, detects the image data of the X-ray ray that has passed the subject body to obtain projection data, and performs reconstruction computation on the projection data to acquire the tomographic image of the slice of the subject body, a main detector which has a plurality of rows of detection elements are aligned in association with a plurality of slices of the subject body and detects projection data of a plurality of slices at a time, a profile detector which has the same number of rows of detection elements as the main detector and measures a profile in the slice direction of the amount of X-ray ray incident to the main detector, and a data processing device for compensating the projection data output from the main detector in accordance with the output of the profile detector.

    摘要翻译: 在从切片周围的各个方向将X射线粉末光束照射到被检体的切片的计算机断层摄影装置中,检测通过被检体的X射线的图像数据,得到投影数据, 对投影数据执行重建计算以获取被检体的切片的断层图像,具有多行检测元件的主检测器与被检体的多个切片相对齐,并检测投影数据 一次的多个片,具有与主检测器相同数量的检测元件的轮廓检测器,并且测量入射到主检测器的X射线射线量的切片方向的轮廓,以及数据 处理装置,用于根据轮廓检测器的输出补偿从主检测器输出的投影数据。

    Radiation detector and x-ray CT apparatus
    3.
    发明授权
    Radiation detector and x-ray CT apparatus 有权
    辐射检测器和X射线CT装置

    公开(公告)号:US06396898B1

    公开(公告)日:2002-05-28

    申请号:US09718482

    申请日:2000-11-24

    IPC分类号: G01N2300

    CPC分类号: G01N23/046 G01N2223/419

    摘要: A radiation detector includes a plurality of detector modules detachably mounted on a detector base. Each of the detector modules has a plurality of element blocks permanently mounted on a module base. Each element block has a plurality of radiation detection elements formed on a signal substrate in the form of an m×n matrix. A detector module is made up of a plurality of element blocks. A radiation detector is made up of a plurality of detector modules. This makes it possible to tile many detection elements and manufacture a radiation detector with a wide field of view.

    摘要翻译: 辐射检测器包括可拆卸地安装在检测器基座上的多个检测器模块。 每个检测器模块具有永久地安装在模块基座上的多个元件块。 每个元件块具有形成在m×n矩阵形式的信号基板上的多个辐射检测元件。 检测器模块由多个元件块组成。 辐射检测器由多个检测器模块组成。 这使得可以铺平许多检测元件并制造具有宽视场的辐射检测器。

    Radiation detector and X-ray CT apparatus
    4.
    发明授权
    Radiation detector and X-ray CT apparatus 有权
    辐射检测器和X射线CT装置

    公开(公告)号:US06760404B2

    公开(公告)日:2004-07-06

    申请号:US10117103

    申请日:2002-04-08

    IPC分类号: G01T124

    CPC分类号: G01N23/046 G01N2223/419

    摘要: A radiation detector includes a plurality of detector modules detachably mounted on a detector base. Each of the detector modules has a plurality of element blocks permanently mounted on a module base. Each element block has a plurality of radiation detection elements formed on a signal substrate in the form of an m×n matrix. A detector module is made up of a plurality of element blocks. A radiation detector is made up of a plurality of detector modules. This makes it possible to tile many detection elements and manufacture a radiation detector with a wide field of view.

    摘要翻译: 辐射检测器包括可拆卸地安装在检测器基座上的多个检测器模块。 每个检测器模块具有永久地安装在模块基座上的多个元件块。 每个元件块具有形成在m×n矩阵形式的信号基板上的多个辐射检测元件。 检测器模块由多个元件块组成。 辐射检测器由多个检测器模块组成。 这使得可以铺平许多检测元件并制造具有宽视场的辐射检测器。

    X-ray CT apparatus, radiation detector and method for reading out electric signals of a radiation detector
    5.
    发明申请
    X-ray CT apparatus, radiation detector and method for reading out electric signals of a radiation detector 有权
    X射线CT装置,放射线检测器和读出放射线检测器的电信号的方法

    公开(公告)号:US20050253078A1

    公开(公告)日:2005-11-17

    申请号:US11120987

    申请日:2005-05-04

    IPC分类号: A61B6/03 G01T1/24

    CPC分类号: A61B6/032

    摘要: An X-ray CT apparatus 20 comprises an X-ray generating unit 22 and a radiation detector 23. The radiation detector 23 includes a plurality of detecting elements put in two-dimensional positions and separated into a plurality of readout blocks, a readout circuit for reading out electric signals from the detecting elements in the respective readout blocks, a switch circuit 26 for switching the electric signals read out to the readout circuit from the detecting elements at the readout blocks and a switch control circuit 27 for controlling the switch circuit 26 so as to read out electric signals with time-sharing from corresponding detecting elements in a common readout block of the readout blocks to the readout circuit and to read out corresponding electric signals in parallel from at least two of the detecting elements to the readout circuit, the two being in different readout blocks each other.

    摘要翻译: X射线CT装置20包括X射线产生单元22和放射线检测器23.辐射检测器23包括放置在二维位置并分成多个读出块的多个检测元件,读出电路 从相应的读出块中的检测元件读出电信号,用于将从读出块的检测元件读出的电信号切换到读出电路的开关电路26和用于控制开关电路26的开关控制电路27 为了从读出电路的公共读出块中的相应的检测元件分时读出电信号,并且从至少两个检测元件到读出电路并行读出相应的电信号, 两个彼此不同的读出块。

    X-ray CT apparatus, radiation detector and method for reading out electric signals of a radiation detector
    6.
    发明授权
    X-ray CT apparatus, radiation detector and method for reading out electric signals of a radiation detector 有权
    X射线CT装置,放射线检测器和读出放射线检测器的电信号的方法

    公开(公告)号:US07317189B2

    公开(公告)日:2008-01-08

    申请号:US11120987

    申请日:2005-05-04

    IPC分类号: G01T1/24

    CPC分类号: A61B6/032

    摘要: An X-ray CT apparatus 20 comprises an X-ray generating unit 22 and a radiation detector 23. The radiation detector 23 includes a plurality of detecting elements put in two-dimensional positions and separated into a plurality of readout blocks, a readout circuit for reading out electric signals from the detecting elements in the respective readout blocks, a switch circuit 26 for switching the electric signals read out to the readout circuit from the detecting elements at the readout blocks and a switch control circuit 27 for controlling the switch circuit 26 so as to read out electric signals with time-sharing from corresponding detecting elements in a common readout block of the readout blocks to the readout circuit and to read out corresponding electric signals in parallel from at least two of the detecting elements to the readout circuit, the two being in different readout blocks each other.

    摘要翻译: X射线CT装置20包括X射线产生单元22和放射线检测器23。 放射线检测器23包括放置在二维位置并分离成多个读出块的多个检测元件,用于从各个读出块中的检测元件读出电信号的读出电路,切换电路26 电信号从读出块的检测元件读出到读出电路;以及开关控制电路27,用于控制开关电路26,从而从公共读出块中的相应检测元件分时读出电信号 读出块到读出电路,并且从至少两个检测元件到读出电路并行地读取相应的电信号,两个彼此不同的读出块。

    Method and apparatus for X-ray CT imaging
    7.
    发明授权
    Method and apparatus for X-ray CT imaging 有权
    X线CT成像的方法和装置

    公开(公告)号:US08792610B2

    公开(公告)日:2014-07-29

    申请号:US13081022

    申请日:2011-04-06

    申请人: Hiroaki Miyazaki

    发明人: Hiroaki Miyazaki

    IPC分类号: G01N23/083 H05G1/64 H01J35/02

    CPC分类号: A61B6/4021 A61B6/5282

    摘要: An apparatus for X-ray CT imaging including an X-ray irradiation unit configured to irradiate an X-ray toward a subject, an X-ray detector having a plurality of X-ray detection elements along a channel direction and a row direction, a couch on which the subject can be arranged, a rotation unit on which the X-ray irradiation unit and the X-ray detector are oppositely disposed and rotate around the couch, a controller configured to execute a helical scan while fluctuating an X-ray focal spot along a body axis direction of the subject by controlling the X-ray irradiation unit, and an image processing unit configured to generate a reconstructed image based on data acquired by the helical scan, wherein the controller is further configured to set a magnitude of fluctuation of the X-ray focal spot so that data acquisition loci of the helical scan do not overlap each other.

    摘要翻译: 一种X射线CT成像装置,其特征在于,包括:X射线照射部,被配置为向被检体照射X射线; X射线检测器,沿着通道方向和行方向具有多个X射线检测元件, 可以配置被摄体的沙发,旋转单元,X射线照射单元和X射线检测器相对设置并围绕着沙发旋转;控制器,被配置为在使X射线焦点变动的同时执行螺旋扫描 通过控制X射线照射单元沿着被​​检体的身体轴线方向进行斑点的图像处理单元;以及图像处理单元,被配置为基于通过螺旋扫描获取的数据来生成重建图像,其中,所述控制器还被配置为设定波动幅度 的X射线焦斑,使得螺旋扫描的数据采集轨迹彼此不重叠。

    Motor structure with planar coil type rotation detector
    8.
    发明授权
    Motor structure with planar coil type rotation detector 失效
    电机结构采用平面线圈式旋转检测器

    公开(公告)号:US08450893B2

    公开(公告)日:2013-05-28

    申请号:US12588998

    申请日:2009-11-04

    CPC分类号: G01B7/30 G01D5/208 H02K29/12

    摘要: A casing of a motor with resolver includes a stator, a motor shaft rotatably supported by a bearing, a motor rotor integrally rotatable with the motor shaft, and a resolver for detecting a rotation angle of the motor rotor. The resolver includes a disc-shaped resolver stator held on the motor casing and having a surface on which a thin-film-shaped coil is formed, and a disc-shaped resolver rotor provided on an end face of the motor rotor and having a surface on which a thin-film-shaped coil is formed. Part of the motor casing holding the outer periphery of the resolver stator is formed as a shield portion cylindrically protruding along the outer periphery of the resolver rotor to the rotor. The motor casing and the shield portion are each made of a non-magnetic conductive material.

    摘要翻译: 具有旋转变压器的电动机的壳体包括定子,由轴承可旋转地支撑的电动机轴,与电动机轴一体旋转的电动机转子,以及用于检测电动机转子的旋转角度的旋转变压器。 旋转变压器包括保持在电动机壳体上并具有形成有薄膜状线圈的表面的盘形分解器定子,以及设置在电机转子的端面上的具有表面的圆盘形旋转变压器转子 其上形成有薄膜状线圈。 保持分解器定子的外周的马达壳体的一部分形成为沿着旋转变压器转子的外周向圆筒状突出的保护部。 电动机壳体和屏蔽部分均由非磁性导电材料制成。

    Resolver
    9.
    发明申请
    Resolver 失效
    解决方案

    公开(公告)号:US20100117632A1

    公开(公告)日:2010-05-13

    申请号:US12591042

    申请日:2009-11-05

    IPC分类号: G01B7/30 H02K29/12

    CPC分类号: H02K24/00 G01D5/208

    摘要: A resolver includes a disc-shaped rotor provided with a detection coil pattern formed in flat shape and a stator formed in flat plate shape placed to concentrically fact the rotor in an axial direction and configured such that a planar first excitation coil pattern to which a cosine wave is supplied and a planar second excitation coil pattern to which a sine wave is supplied, the first and the second patterns being laminated. The first and second excitation coil patterns are placed to face the detection coil pattern. An insulation layer is formed with insulating coating material between the first and second excitation coil patterns.

    摘要翻译: 旋转变压器包括具有形成为平坦形状的检测线圈图案的圆盘形转子和形成为平板状的定子,其被设置为沿轴向方向同心地实现转子,并且构造成使得平面第一激励线圈图案与余弦 并且提供正弦波的平面第二激励线圈图案,第一图案和第二图案被层叠。 第一和第二激励线圈图案被放置成面对检测线圈图案。 绝缘层在第一和第二激励线圈图案之间由绝缘涂层材料形成。

    Safety razor
    10.
    发明授权
    Safety razor 失效
    安全剃须刀

    公开(公告)号:US07191523B2

    公开(公告)日:2007-03-20

    申请号:US10483894

    申请日:2002-07-16

    IPC分类号: B26B21/00 B26B21/02

    CPC分类号: B26B21/222 B26B21/22

    摘要: A safety razor with a plurality of blades comprising a head provided with a plurality of vertically adjacent blades, which do not wholly overlap one another, and blade support parts supporting the respective blades apart from one another in order to retain the respective blades at spaces, and wherein non-overlapping portions, which do not overlap one another, are formed on supported portions of the respective blades and the blade support parts are held to the non-overlapping portions of the blades to support the blades. A support structure can be divided into two members to be manufactured and mechanically assembled, metal molds are not so much complicated, and mechanical assembly of blades is made possible to prevent degradation in yield.

    摘要翻译: 具有多个叶片的安全剃刀包括:头部,其设置有不完全彼此重叠的多个垂直相邻的叶片,以及支撑相应叶片彼此间隔开的叶片支撑部件,以将各个叶片保持在空间, 并且其中不重叠的非重叠部分形成在各个叶片的支撑部分上,并且叶片支撑部分被保持到叶片的非重叠部分以支撑叶片。 支撑结构可以分为两个待制造和机械组装的构件,金属模具不是那么复杂,并且使得叶片的机械组装成为可能以防止产量降低。