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    • 1. 发明授权
    • Ultrasonic testing system and method for ceramic honeycomb structures
    • 陶瓷蜂窝结构超声波检测系统及方法
    • US07614304B2
    • 2009-11-10
    • US11708896
    • 2007-02-21
    • Natarajan GunasekaranZhiqiang Shi
    • Natarajan GunasekaranZhiqiang Shi
    • G01N29/06
    • B01D46/2418B01D2046/2433B01D2273/18G01N29/043G01N29/069G01N29/11G01N29/265G01N29/28G01N2291/0231G01N2291/0232G01N2291/0289G01N2291/106
    • Both a system and method for detecting the presence or absence of internal discontinuities or inhomogeneities in a fired or green ceramic honeycomb structure is provided. The system includes a membrane disposed over a surface of the honeycomb structure, at least one ultrasonic transmitter that engages the membrane and transmits ultrasonic waves into the honeycomb structure, a translation assembly connected to the ultrasonic transmitter for sliding said transmitter across said membrane in a predetermined pattern, and an ultrasonic receiver that receives a modulated response from the ultrasonic waves transmitted into the honeycomb structure. The membrane is preferably plastic sheet material, such as polyester, having a temporary adhesive on one side and a thickness that is about one-quarter of the wavelength of the ultrasonic waves in order to avoid attenuation of the modulated response. In the method, the plastic sheet material is applied over the surface of the honeycomb structure via the temporary adhesive and the ultrasonic transmitter is simultaneously actuated while the translation assembly continuously slides the ultrasonic transmitter over the plastic sheet material in a predetermined scanning pattern.
    • 提供了一种用于检测烧制或绿色陶瓷蜂窝结构中内部不连续性或不均匀性是否存在的系统和方法。 该系统包括设置在蜂窝结构的表面上的膜,至少一个超声波发射器,其接合膜并将超声波传递到蜂窝结构中;连接到超声波发射器的平移组件,用于以预定的方式将所述发射器滑过所述膜 以及从发送到蜂窝结构体的超声波接受调制响应的超声波接收机。 膜优选是塑料片材料,例如聚酯,其一侧具有临时粘合剂,并且厚度为超声波波长的大约四分之一,以避免调制响应的衰减。 在该方法中,通过临时粘合剂将塑料片材施加在蜂窝结构体的表面上,并且同时致动超声波发射器,同时平移组件以预定扫描图案连续地将超声波发射器滑动在塑料片材上。
    • 2. 发明申请
    • Ultrasonic testing system and method for ceramic honeycomb structures
    • 陶瓷蜂窝结构超声波检测系统及方法
    • US20070266790A1
    • 2007-11-22
    • US11708896
    • 2007-02-21
    • Natarajan GunasekaranZhiqiang Shi
    • Natarajan GunasekaranZhiqiang Shi
    • G01N29/04
    • B01D46/2418B01D2046/2433B01D2273/18G01N29/043G01N29/069G01N29/11G01N29/265G01N29/28G01N2291/0231G01N2291/0232G01N2291/0289G01N2291/106
    • Both a system and method for detecting the presence or absence of internal discontinuities or inhomogeneities in a fired or green ceramic honeycomb structure is provided. The system includes a membrane disposed over a surface of the honeycomb structure, at least one ultrasonic transmitter that engages the membrane and transmits ultrasonic waves into the honeycomb structure, a translation assembly connected to the ultrasonic transmitter for sliding said transmitter across said membrane in a predetermined pattern, and an ultrasonic receiver that receives a modulated response from the ultrasonic waves transmitted into the honeycomb structure. The membrane is preferably plastic sheet material, such as polyester, having a temporary adhesive on one side and a thickness that is about one-quarter of the wavelength of the ultrasonic waves in order to avoid attenuation of the modulated response. In the method, the plastic sheet material is applied over the surface of the honeycomb structure via the temporary adhesive and the ultrasonic transmitter is simultaneously actuated while the translation assembly continuously slides the ultrasonic transmitter over the plastic sheet material in a predetermined scanning pattern.
    • 提供了一种用于检测烧制或绿色陶瓷蜂窝结构中内部不连续性或不均匀性是否存在的系统和方法。 该系统包括设置在蜂窝结构的表面上的膜,至少一个超声波发射器,其接合膜并将超声波传递到蜂窝结构中;连接到超声波发射器的平移组件,用于以预定的方式将所述发射器滑过所述膜 以及从发送到蜂窝结构体的超声波接受调制响应的超声波接收机。 膜优选是塑料片材料,例如聚酯,其一侧具有临时粘合剂,并且厚度为超声波波长的大约四分之一,以避免调制响应的衰减。 在该方法中,通过临时粘合剂将塑料片材施加在蜂窝结构体的表面上,并且同时致动超声波发射器,同时平移组件以预定扫描图案连续地将超声波发射器滑动在塑料片材上。
    • 4. 发明申请
    • LASER-BASED ULTRASONIC MEASUREMENTS OF CELLULAR CERAMIC BODIES DURING THERMAL PROCESSING
    • 热处理过程中细胞陶瓷体的基于激光的超声波测量
    • US20100305877A1
    • 2010-12-02
    • US12787517
    • 2010-05-26
    • Natarajan GunasekaranZhiqiang ShiJames Arthur Smith
    • Natarajan GunasekaranZhiqiang ShiJames Arthur Smith
    • G06F19/00G01N29/04
    • G01N29/228G01N29/07G01N29/2418G01N2291/0232
    • Laser-based ultrasonic (LBU) systems and methods for measuring at least one material property of a ceramic cellular ceramic body during thermal processing are disclosed. The method includes subjecting the ceramic cellular ceramic body to a temperature cycle within an interior of an oven having first and second windows. For a plurality of temperatures within the temperature cycle, the cellular ceramic body is irradiated with a modulated laser beam through the first window. This modulated irradiation is sequential at one or more first locations and generates acoustic waves in the cellular ceramic body over a plurality of acoustic paths. The method also includes sequentially irradiating the cellular ceramic body through the second window using a detection laser beam. This probe irradiation is sequential at one or more second locations that correspond to the one or more first locations so that the acoustic waves associated with the plurality of optical paths are detected. The method also includes calculating from the detected acoustic waves at least one material property of the ceramic cellular body as a function of temperature.
    • 公开了基于激光的超声波(LBU)系统和用于在热处理期间测量陶瓷蜂窝陶瓷体的至少一种材料性质的方法。 该方法包括使陶瓷蜂窝状陶瓷体经受在具有第一和第二窗口的烤箱内部的温度循环。 对于温度循环内的多个温度,细胞陶瓷体通过第一窗口被照射调制的激光束。 该调制的照射在一个或多个第一位置处是顺序的,并且在多个声学路径中在蜂窝陶瓷体中产生声波。 该方法还包括使用检测激光束通过第二窗口顺序地照射细胞陶瓷体。 该探针照射在与一个或多个第一位置相对应的一个或多个第二位置处是顺序的,使得与多个光路相关联的声波被检测。 该方法还包括根据检测到的声波计算陶瓷细胞体的至少一种材料性质作为温度的函数。
    • 7. 发明授权
    • Systems and methods for measuring the specific modulus of cellular ceramic bodies
    • 用于测量细胞陶瓷体的比模量的系统和方法
    • US08074518B2
    • 2011-12-13
    • US12197429
    • 2008-08-25
    • John David HelfinstineRobert A McIntoshLisa M NoniZhiqiang ShiSujanto WidjajaDavid John Worthey
    • John David HelfinstineRobert A McIntoshLisa M NoniZhiqiang ShiSujanto WidjajaDavid John Worthey
    • G01N29/07
    • G01H5/00
    • Systems (50) and methods for measuring and displaying a visual and/or graphical representation of the specific modulus (E/ρ) of a cellular ceramic body (10), such as those used to form particulate filters, are disclosed. The ultrasonic measurement system employs an ultrasonic transmitter (52T) and an ultrasonic receiver (52R) adjacent to, but spaced apart from respective ends (16, 18) of the ceramic body. Multiple ultrasonic waves (80) are sent through corresponding multiple longitudinal portions (12P) of the honeycomb structure (12), where adjacent longitudinal portions overlap. Time of flight (TOF) measurements (TOF1, TOF2), along with other parameters describing the ceramic body, allow for the measurement of the sonic speed (cmat) of the ultrasonic waves that pass through the ceramic body as well as the attenuation (IR). The specific modulus is then calculated from the square of the sonic speed (C2mat). The high resolution of the ultrasonic measurements allows for improved evaluation of the manufacturing process.
    • 公开了用于测量和显示细胞陶瓷体(10)的比模量(E /&rgr)的视觉和/或图形表示的系统(50)和方法,例如用于形成微粒过滤器的那些。 超声波测量系统采用与陶瓷体的相应端部(16,18)相邻但间隔开的超声波发射器(52T)和超声波接收器(52R)。 多个超声波(80)通过蜂窝结构(12)的相应的多个纵向部分(12P)发送,其中相邻的纵向部分重叠。 飞行时间(TOF1,TOF2)以及描述陶瓷体的其他参数允许测量通过陶瓷体的超声波的声速(cmat)以及衰减(IR )。 然后根据声速(C2mat)的平方来计算比模量。 超声波测量的高分辨率允许改进制造过程的评估。
    • 8. 发明申请
    • Community network system with broadband integrated services
    • 具有宽带综合业务的社区网络系统
    • US20060190627A1
    • 2006-08-24
    • US10526516
    • 2003-05-19
    • Zhimei WuGuiming FangQiong LiuZhiqiang ShiDongchao Cheng
    • Zhimei WuGuiming FangQiong LiuZhiqiang ShiDongchao Cheng
    • G06F15/16
    • H04L12/2801
    • A community network system with broadband integrated services includes video servers, video storages, video conference servers, satellite digital television receiver servers, a network accounting server, a network management server, Gigabit Ethernet Switches, Fast Ethernet switches, home gateways, wireless gateways, digital television sets, analogue television sets, computers, PCs with wireless interface, stationary IP telephones, and wireless IP mobile phones. The IP stationary phone can be connected between the Fast Ethernet switch and the home gateway, and also can be connected between the home gateway and the computer. The wireless gateway is connected to the mobile phone and a mobile device. The satellite digital television receiver server is connected to a satellite signal receiver antenna. The backbone Gigabit Ethernet Switch is connected to a Metropolitan Area Network via a 1000 Mbps or 100 Mbps port. The system simultaneously provides the services of digital television, Internet access of the computer and IP telephone. The present invention achieves the service integration of television network, telephone network and computer network, and the integration of wired and wireless networks, and ensures the qualities of various services, information security and reasonable accounting.
    • 具有宽带综合业务的社区网络系统包括视频服务器,视频存储器,视频会议服务器,卫星数字电视接收器服务器,网络计费服务器,网络管理服务器,千兆以太网交换机,快速以太网交换机,家庭网关,无线网关,数字 电视机,模拟电视机,电脑,带无线接口的PC机,固定IP电话机和无线IP手机。 IP固定电话可以连接在快速以太网交换机和家庭网关之间,也可以连接到家庭网关和计算机之间。 无线网关连接到移动电话和移动设备。 卫星数字电视接收机服务器连接到卫星信号接收天线。 主干千兆以太网交换机通过1000 Mbps或100 Mbps端口连接到城域网。 该系统同时提供数字电视,计算机上网和IP电话的服务。 本发明实现了电视网,电话网和计算机网络的服务整合,有线和无线网络的整合,保证了各种业务的质量,信息安全和合理的会计核算。