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公开(公告)号：US07614304B2
公开(公告)日：2009-11-10
申请号：US11708896
申请日：2007-02-21
IPC分类号： G01N29/06
CPC分类号： B01D46/2418 , B01D2046/2433 , B01D2273/18 , G01N29/043 , G01N29/069 , G01N29/11 , G01N29/265 , G01N29/28 , G01N2291/0231 , G01N2291/0232 , G01N2291/0289 , G01N2291/106
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08319183B2
公开(公告)日：2012-11-27
申请号：US12582981
申请日：2009-10-21
申请人： Natarajan Gunasekaran , Vitor Marino Schneider , Charlene Marie Smith , Carlo Anthony Kosik Williams
发明人： Natarajan Gunasekaran , Vitor Marino Schneider , Charlene Marie Smith , Carlo Anthony Kosik Williams
IPC分类号： G01J5/02
CPC分类号： G01N21/94 , G01N21/3504 , G01N21/3577 , G01N21/3581 , G01N2201/129
摘要： Methods of characterizing and measuring particulate accumulation in a family of particulate filters (10) are disclosed. The disclosure can be applied to diesel, gasoline and natural gas fueled engines, fluid streams bearing dust, and chemical and biological substances such as may be found in laboratory fluids, for example, air. In one embodiment, the disclosure is directed to measuring diesel particulate accumulation in a family of diesel particulate filters. The methods include measuring calibration complex terahertz transmission spectra (PC(f)) of at least a portion (17) of at least one particulate or diesel particulate filter in the family for different known particulate or diesel particulate amounts (ADP). The method also involves performing a partial least squares (PLS) analysis on the calibration complex terahertz transmission spectra to establish a calibration relationship between the complex terahertz transmission spectra and the particulate or diesel particulate amounts. The complex transmission spectrum of a subject particulate filter or diesel particulate filter having an unknown amount of particulate or diesel particulate accumulation is then determined and compared to the linear calibration relationship to establish a measured amount of particulates or diesel particulates. The methods include using a terahertz (THz) system (100) to obtain the complex terahertz transmission spectra for the calibration and subject particulate or diesel particulate filters.
摘要翻译： 公开了在微粒过滤器（10）系列中表征和测量颗粒积聚的方法。 本公开可以应用于柴油，汽油和天然气燃料发动机，带有灰尘的流体流，以及诸如可以在实验室流体例如空气中发现的化学和生物物质。 在一个实施方案中，本公开涉及测量柴油颗粒过滤器系列中的柴油颗粒物积聚。 所述方法包括测量家族中至少一种颗粒或柴油颗粒过滤器的至少一部分（17）的校准复数太赫兹透射光谱（PC（f）），用于不同的已知颗粒或柴油颗粒量（ADP）。 该方法还涉及对校准复数太赫兹透射光谱进行偏最小二乘法（PLS）分析，以建立复数太赫兹透射光谱与颗粒或柴油颗粒量之间的校准关系。 然后确定具有未知量的颗粒或柴油颗粒物积聚的目标颗粒过滤器或柴油颗粒过滤器的复杂透射光谱，并将其与线性校准关系进行比较，以建立测量量的颗粒物或柴油颗粒物。 这些方法包括使用太赫兹（THz）系统（100）来获得用于校准和主体颗粒或柴油颗粒过滤器的复数太赫兹透射光谱。
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3.发明授权Laser-based ultrasonic measurements of cellular ceramic bodies during thermal processing 有权热处理过程中激光超声波测量细胞陶瓷体公开(公告)号：US08359170B2
公开(公告)日：2013-01-22
申请号：US12787517
申请日：2010-05-26
IPC分类号： G06F19/00
CPC分类号： G01N29/228 , G01N29/07 , G01N29/2418 , G01N2291/0232
摘要： 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. For a plurality of temperatures within the temperature cycle, the cellular ceramic body is irradiated with a modulated laser beam to generate acoustic waves in the cellular ceramic body over a plurality of acoustic paths. The method also includes sequentially irradiating the cellular ceramic body using a detection laser beam so that the acoustic waves 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.
摘要翻译： 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。 该方法包括使陶瓷多孔陶瓷体经受烘箱内部的温度循环。 对于温度周期内的多个温度，细胞陶瓷体用调制的激光束照射，以在多个声学路径上在蜂窝陶瓷体中产生声波。 该方法还包括使用检测激光束顺序照射细胞陶瓷体，以便检测声波。 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。
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4.发明申请LASER-BASED ULTRASONIC MEASUREMENTS OF CELLULAR CERAMIC BODIES DURING THERMAL PROCESSING 有权热处理过程中细胞陶瓷体的基于激光的超声波测量公开(公告)号：US20100305877A1
公开(公告)日：2010-12-02
申请号：US12787517
申请日：2010-05-26
CPC分类号： G01N29/228 , G01N29/07 , G01N29/2418 , G01N2291/0232
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20100108890A1
公开(公告)日：2010-05-06
申请号：US12582981
申请日：2009-10-21
申请人： Natarajan Gunasekaran , Vitor Marino Schneider , Charlene Marie Smith , Carlo Anthony Kosik Williams
发明人： Natarajan Gunasekaran , Vitor Marino Schneider , Charlene Marie Smith , Carlo Anthony Kosik Williams
IPC分类号： G01J5/02
CPC分类号： G01N21/94 , G01N21/3504 , G01N21/3577 , G01N21/3581 , G01N2201/129
摘要： Methods of characterizing and measuring particulate accumulation in a family of particulate filters (10) are disclosed. The disclosure can be applied to diesel, gasoline and natural gas fueled engines, fluid streams bearing dust, and chemical and biological substances such as may be found in laboratory fluids, for example, air. In one embodiment, the disclosure is directed to measuring diesel particulate accumulation in a family of diesel particulate filters. The methods include measuring calibration complex terahertz transmission spectra (PC(f)) of at least a portion (17) of at least one particulate or diesel particulate filter in the family for different known particulate or diesel particulate amounts (ADP). The method also involves performing a partial least squares (PLS) analysis on the calibration complex terahertz transmission spectra to establish a calibration relationship between the complex terahertz transmission spectra and the particulate or diesel particulate amounts. The complex transmission spectrum of a subject particulate filter or diesel particulate filter having an unknown amount of particulate or diesel particulate accumulation is then determined and compared to the linear calibration relationship to establish a measured amount of particulates or diesel particulates. The methods include using a terahertz (THz) system (100) to obtain the complex terahertz transmission spectra for the calibration and subject particulate or diesel particulate filters.
摘要翻译： 公开了在微粒过滤器（10）系列中表征和测量颗粒积聚的方法。 本公开可以应用于柴油，汽油和天然气燃料发动机，带有灰尘的流体流，以及诸如可以在实验室流体例如空气中发现的化学和生物物质。 在一个实施方案中，本公开涉及测量柴油颗粒过滤器系列中的柴油颗粒物积聚。 所述方法包括测量家族中至少一种颗粒或柴油颗粒过滤器的至少一部分（17）的校准复数太赫兹透射光谱（PC（f）），用于不同的已知颗粒或柴油颗粒量（ADP）。 该方法还涉及对校准复数太赫兹透射光谱进行偏最小二乘法（PLS）分析，以建立复数太赫兹透射光谱与颗粒或柴油颗粒量之间的校准关系。 然后确定具有未知量的颗粒或柴油颗粒物积聚的目标颗粒过滤器或柴油颗粒过滤器的复杂透射光谱，并将其与线性校准关系进行比较，以建立测量量的颗粒物或柴油颗粒物。 这些方法包括使用太赫兹（THz）系统（100）来获得用于校准和主体颗粒或柴油颗粒过滤器的复数太赫兹透射光谱。
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公开(公告)号：US20070266790A1
公开(公告)日：2007-11-22
申请号：US11708896
申请日：2007-02-21
IPC分类号： G01N29/04
CPC分类号： B01D46/2418 , B01D2046/2433 , B01D2273/18 , G01N29/043 , G01N29/069 , G01N29/11 , G01N29/265 , G01N29/28 , G01N2291/0231 , G01N2291/0232 , G01N2291/0289 , G01N2291/106
摘要： 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.
摘要翻译： 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。
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7.发明申请公开(公告)号：US20100212299A1
公开(公告)日：2010-08-26
申请号：US12392341
申请日：2009-02-25
IPC分类号： F01N3/00
摘要： Methods for determining when to regenerate an exhaust gas particulate filter (10), for regenerating, and for calibrating a pressure drop across such filters are disclosed. An example method involves reducing a first amount of particulates (52) accumulated in the filter to a residual amount RADP. The method also includes measuring the residual amount RADP by exciting the microwave resonant cavity (126) in which the filter resides with microwave radiation (182) and then monitoring the microwave cavity response. The method also includes using the measured value of RADP to calibrate a pressure drop threshold ΔPTH SO that it is representative of a limit (TDP) of particulate accumulation in the filter. The methods may also include regenerating the filter a number of times and each time re-setting the pressure drop threshold ΔPTH based on measurements of RADP taken after each filter regeneration.
摘要翻译： 公开了用于确定何时再生废气微粒过滤器（10），用于再生和用于校准跨过这些过滤器的压降的方法。 示例性方法包括将累积在过滤器中的第一量的微粒（52）减少到残留量RADP。 该方法还包括通过激发微波谐振腔（126）来测量剩余量RADP，其中滤波器驻留有微波辐射（182），然后监测微波腔响应。 该方法还包括使用RADP的测量值来校准压降阈值＆Dgr; PTH SO，它表示过滤器中颗粒物积聚的极限（TDP）。 这些方法还可以包括重复过滤器多次，并且每次基于在每个过滤器再生之后获取的RADP的测量值重新设置压降阈值＆Dgr; PTH。
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