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公开(公告)号：US09453937B2
公开(公告)日：2016-09-27
申请号：US14140058
申请日：2013-12-24
发明人： Jinyu Zhang , Bin Sang , Zhanjun Duan , Li Zhang , Ziran Zhao
CPC分类号： G01V5/005 , G01N23/046 , G01N2223/20 , G01N2223/419 , G01N2223/5015 , G01T1/2985
摘要： A stationary CT apparatus and a method of controlling the same. The stationary CT apparatus includes: a scanning passage; a stationary carbon nanotube X-ray source arranged around the scanning passage and comprising a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules are arranged in a substantially L shape or a substantially Π shape when viewed in a plane intersecting the scanning passage. Reconstruction of the CT apparatus without a rotary gantry is achieved and special substances in an object under inspection is identified by optimizing design of the carbon nanotube X-ray source and the detector device. The invention ensures that the stationary gantry type CT system has a small size and a high accuracy and is particularly suitable for safety inspection of baggage.
摘要翻译： 固定CT装置及其控制方法。 固定CT装置包括：扫描通道; 固定碳纳米管X射线源，其布置在所述扫描通道周围并且包括多个射线发射焦斑; 以及多个固定检测器模块，其布置在扫描通道周围并且设置成与X射线源相对。 当在与扫描通道相交的平面中观察时，多个检测器模块中的至少一些被布置成大致L形或大致Π形状。 通过优化碳纳米管X射线源和检测器设备的设计，可以实现没有旋转台架的CT设备的重建，并检测被检查物体中的特殊物质。 本发明确保了固定式龙门式CT系统尺寸小，精度高，特别适用于行李安全检查。
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公开(公告)号：US20150331140A1
公开(公告)日：2015-11-19
申请号：US14711955
申请日：2015-05-14
发明人： Li Zhang , Jinyu Zhang , Qingping Huang , Hu Tang , Hui Ding , Qianlu Ren
IPC分类号： G01V5/00
CPC分类号： G01V5/005 , G01V5/0016
摘要： The present disclosure discloses a scanning imaging system, comprising a transportation apparatus, a first imaging system, and a second imaging system. A distance between a ray beam from a first ray generator of the first imaging system and a ray beam from a second ray generator of the second imaging system in the transportation direction is roughly L. A controller is configured to acquire, based on a count value of the encoding counter module, a correspondence relationship between data in a position of the inspected object in the transportation direction which is collected by the first imaging system and data in the position of the inspected object in the transportation direction which is collected by the second imaging system, wherein a difference between a count value of the encoder corresponding to the data in the position which is collected by the first imaging system and a count value of the encoder corresponding to the data in the position which is collected by the second imaging system is roughly L/D. The present disclosure can achieve alignment of the DR data image and the CT data image in a simple manner.
摘要翻译： 本公开公开了一种扫描成像系统，包括运送装置，第一成像系统和第二成像系统。 来自第一成像系统的第一射线发生器的射线束与沿着运送方向的第二成像系统的第二射线发生器的射线束之间的距离大致为L.控制器被配置为基于计数值 编码计数器模块的数据之间的对应关系，由第一成像系统收集的运送方向上的被检查物体的位置数据与被检查物体在运送方向的位置上的数据之间的对应关系， 系统，其中对应于由第一成像系统收集的位置中的数据的编码器的计数值与对应于由第二成像系统收集的位置中的数据的编码器的计数值之间的差是 大致L / D。 本公开可以以简单的方式实现DR数据图像和CT数据图像的对准。
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13.发明授权Photoelectric switch for detection of an object and method for operating the same 有权用于检测物体的光电开关及其操作方法公开(公告)号：US09507051B2
公开(公告)日：2016-11-29
申请号：US14577446
申请日：2014-12-19
发明人： Jinyu Zhang , Lei Liao , Hui Ding , Hu Tang , Li Zhang
CPC分类号： G01V8/24 , F16P3/144 , H03K17/943 , H03K2217/94026 , H03K2217/94112
摘要： A photoelectric switch for detection of an object. The photoelectric switch comprises: a light transmitter unit comprising plural light transmitters configured to emit plural light signals; a light receiver unit comprising plural optical fiber receivers in one-to-one correspondence with the plural light transmitters and configured to receive the plural light signals and to merge plural light signals, wherein an object detection area is defined between the plural light transmitters and the plural optical fiber receivers; a photoelectric conversion unit connected to the optical fiber receivers and configured to perform photoelectric conversions on the merged light signals outputted by the optical fiber receivers so as to generate an electric signal; and a control and processing unit connected to both the light transmitter unit and the photoelectric conversion unit, and configured to control and process the light signals and/or the electric signal.
摘要翻译： 一种用于检测物体的光电开关。 光电开关包括：光发射器单元，包括配置为发射多个光信号的多个光发射器; 一种光接收单元，包括与多个光发射器一一对应的多个光纤接收器，并被配置为接收多个光信号并合并多个光信号，其中在多个光发射机和 多个光纤接收器; 光电转换单元，连接到光纤接收器，并被配置为对由光纤接收器输出的合并光信号执行光电转换，以产生电信号; 以及控制和处理单元，连接到光发射单元和光电转换单元，并且被配置为控制和处理光信号和/或电信号。
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公开(公告)号：US20150185053A1
公开(公告)日：2015-07-02
申请号：US14577355
申请日：2014-12-19
发明人： Yumin Zhu , Jinyu Zhang , Hui Ding , Hu Tang
CPC分类号： G01D5/3473 , G01D5/24461 , G01D5/24476 , H01R39/08
摘要： Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.
摘要翻译： 公开了一种用于滑环的编码器和编码方法。 编码器包括：编码带，其固定在滑环上，并且具有规则地布置在编码带上的多个孔; 设置在所述编码带的一侧的至少一对第一传感器，其中，每对的所述第一传感器分别基于从所述编码带的另一侧发射的光并经过所述第一传感信号和所述第一冗余感测信号 当编码带与滑环一起旋转时，该多个孔; 以及至少一个信号组合器，其连接到所述至少一对所述第一传感器，并且被配置为组合所述第一感测信号和所述第一冗余感测信号，以获得作为第一编码信号的组合感测信号。 利用本发明的实施例，通过使用冗余传感器来提供冗余信号，并且可以避免异物干扰，提高编码信号的稳定性并确保设备的正常运行。
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15.发明申请公开(公告)号：US20140314200A1
公开(公告)日：2014-10-23
申请号：US14355240
申请日：2013-07-15
发明人： Zhiqiang Chen , Yuanjing Li , Li Zhang , Jinyu Zhang , Zhanjun Duan , Longsong Ran , Qingping Huang
IPC分类号： G01V5/00
CPC分类号： G01V5/005 , A61B6/032 , A61B6/035 , G01N23/046 , G01V5/0016 , G01V5/0041
摘要： The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, a X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a circular arc with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with its center at a target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.
摘要翻译： 本发明公开了一种行李的CT安全检查系统。 CT安全检查系统包括扫描通道，行李通过该扫描通道进入和离开用于行李的CT安全检查系统，设置在扫描通道的一侧的X射线源，以及设置在扫描的相对侧的台架 通道，并且其上安装有多个检测器单元。 在每个检测器单元中，至少一个检测器单元的顶点定位在其中心在扫描通道的中心的圆弧中，并且检测器单元被连续布置。 多个检测器单元的所有检测器晶体接收面都在辐射射线束的范围内，其中心位于X射线源的目标。 在每个检测器单元中，检测器晶体接收面中的至少一个的中点与X射线源的目标之间的连接线垂直于相应的检测器晶体接收面。
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16.发明申请PHOTOELECTRIC SWITCH FOR DETECTION OF AN OBJECT AND METHOD FOR OPERATING THE SAME 有权用于检测物体的光电开关及其操作方法公开(公告)号：US20150185359A1
公开(公告)日：2015-07-02
申请号：US14577446
申请日：2014-12-19
发明人： Jinyu Zhang , Lei Liao , Hui Ding , Hu Tang , Li Zhang
IPC分类号： G01V8/24
CPC分类号： G01V8/24 , F16P3/144 , H03K17/943 , H03K2217/94026 , H03K2217/94112
摘要： A photoelectric switch for detection of an object. The photoelectric switch comprises: a light transmitter unit comprising plural light transmitters configured to emit plural light signals; a light receiver unit comprising plural optical fiber receivers in one-to-one correspondence with the plural light transmitters and configured to receive the plural light signals and to merge plural light signals, wherein an object detection area is defined between the plural light transmitters and the plural optical fiber receivers; a photoelectric conversion unit connected to the optical fiber receivers and configured to perform photoelectric conversions on the merged light signals outputted by the optical fiber receivers so as to generate an electric signal; and a control and processing unit connected to both the light transmitter unit and the photoelectric conversion unit, and configured to control and process the light signals and/or the electric signal.
摘要翻译： 一种用于检测物体的光电开关。 光电开关包括：光发射器单元，包括配置为发射多个光信号的多个光发射器; 一种光接收单元，包括与多个光发射器一一对应的多个光纤接收器，并被配置为接收多个光信号并合并多个光信号，其中在多个光发射机和 多个光纤接收器; 光电转换单元，连接到光纤接收器，并被配置为对由光纤接收器输出的合并光信号执行光电转换，以产生电信号; 以及控制和处理单元，连接到光发射单元和光电转换单元，并且被配置为控制和处理光信号和/或电信号。
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公开(公告)号：US09712124B2
公开(公告)日：2017-07-18
申请号：US14798940
申请日：2015-07-14
申请人： Tsinghua University
发明人： Huaqiang Wu , Hongming Lyu , He Qian , Zhiping Yu , Yilin Huang , Jinyu Zhang
CPC分类号： H03F1/565 , H03F1/18 , H03F3/193 , H03F3/607 , H03F2200/301 , H03F2200/451
摘要： The present disclosure provides a distributed amplifier, including: a drain transmission line; a gate transmission line; GFETs, in which sources of the graphene field-effect transistors are respectively grounded; gates of the graphene field-effect transistors respectively connected with a plurality of first shunt capacitors which are grounded; the gate transmission line is connected with a plurality of first nodes respectively between the gates of the graphene field-effect transistors and the plurality of first shunt capacitors, having a plurality of first inductors respectively between each two first nodes; drains of the graphene field-effect transistors respectively connected with a plurality of second shunt capacitors which are grounded; the drain transmission line is connected with a plurality of second nodes respectively between the drains of the graphene field-effect transistors and the plurality of second shunt capacitors, having a plurality of second inductors respectively between each two second nodes.
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