Detection of pump cavitation/blockage and seal failure via current signature analysis
    1.
    发明申请
    Detection of pump cavitation/blockage and seal failure via current signature analysis 失效
    通过电流特征分析检测泵气蚀/堵塞和密封故障

    公开(公告)号:US20040199480A1

    公开(公告)日:2004-10-07

    申请号:US10824899

    申请日:2004-04-15

    摘要: A system and method is provided for monitoring the operating condition of a pump by evaluating fault data encoded in the instantaneous current of the motor driving the pump. The data is converted to a frequency spectrum which is analyzed to create a fault signature having fault attributes relating to various fault conditions associated with the pump. The fault signature is then input to a neural network that operates in conjunction with a preprocessing and post processing module to perform decisions and output those decisions to a user interface. A stand alone module is also provided that includes an adaptive preprocessing module, a one-shot unsupervised neural network and a fuzzy based expert system to provide a decision making module that operates with limited human supervision.

    摘要翻译: 提供了一种系统和方法,用于通过评估以驱动泵的马达的瞬时电流编码的故障数据来监视泵的运行状态。 数据被转换成频谱,该频谱被分析以创建具有与泵相关的各种故障状况相关的故障属性的故障签名。 然后将故障签名输入到与预处理和后处理模块一起操作的神经网络,以执行决策并将这些决定输出到用户界面。 还提供了一种独立模块,其包括自适应预处理模块,单次无监督神经网络和基于模糊的专家系统,以提供在有限的人力监督下操作的决策模块。

    Turbine blade fatigue life evaluating method, turbine blade creep elongation strain measuring apparatus, and turbine blade
    2.
    发明申请
    Turbine blade fatigue life evaluating method, turbine blade creep elongation strain measuring apparatus, and turbine blade 有权
    涡轮叶片疲劳寿命评估方法,涡轮叶片蠕变伸长应变测量装置和涡轮叶片

    公开(公告)号:US20040139809A1

    公开(公告)日:2004-07-22

    申请号:US10635494

    申请日:2003-08-07

    摘要: In order to provide a turbine blade fatigue life evaluating method for quantitively evaluating the fatigue life of a turbine blade, the turbine blade is determined to be within its fatigue life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0.5% of an initial length, and is determined to exceed its fatigue life if the creep elongation strain is 0.5% or more than the initial length. A turbine blade creep elongation strain measuring apparatus 20 comprises a first fixed end 21, a second fixed end 22, and a dial gauge 24. A dimension in the longitudinal direction is stamped on the surface of a turbine blade.

    摘要翻译: 为了提供一种用于定量评估涡轮机叶片的疲劳寿命的涡轮叶片疲劳寿命评估方法,如果涡轮叶片的纵向上的蠕变伸长应变小于0.5,则涡轮叶片被确定在其疲劳寿命内 如果蠕变伸长应变为初始长度的0.5%或更大,则确定其超过其疲劳寿命。 涡轮叶片蠕变伸长应变测量装置20包括第一固定端21,第二固定端22和千分表24.在涡轮叶片的表面上冲压沿纵向的尺寸。

    Method and system for processing rail inspection test data
    3.
    发明申请
    Method and system for processing rail inspection test data 有权
    轨道检测试验数据的处理方法和系统

    公开(公告)号:US20020099507A1

    公开(公告)日:2002-07-25

    申请号:US10043494

    申请日:2002-01-11

    CPC分类号: B61K9/10 B61D15/00

    摘要: A data processing system is provided for use in conjunction with a rail inspection system having a detection carriage with a plurality of sensor units configured to sense discontinuities in a rail of a railroad track as the detector carriage travels along the railroad track. The system comprises a data processing and recording computer connectable to the plurality of sensor units for receiving sensor data therefrom. At least one processor card may be included in the data processing and recording computer that includes at least one data object builder configured for building data objects using the sensor data from the plurality of sensor units. The at least one processor card may also include means for synchronizing the data objects with respect to location along the rail. The system may further comprise a defect detection module in the data processing and recording computer. The defect detection module is in communication with the at least one data object builder and is configured for using the data objects to determine rail locations having suspected defects.

    摘要翻译: 一种数据处理系统被提供用于与轨道检查系统一起使用,轨道检查系统具有检测托架,该检测托架具有多个传感器单元,该多个传感器单元被配置为当检测器托架沿着铁路轨道行进时感测铁路轨道的不连续性。 该系统包括可连接到多个传感器单元的数据处理和记录计算机,用于从其接收传感器数据。 至少一个处理器卡可以包括在数据处理和记录计算机中,其包括使用来自多个传感器单元的传感器数据构建用于构建数据对象的至少一个数据对象生成器。 所述至少一个处理器卡还可以包括用于使数据对象相对于沿着轨道的位置同步的装置。 该系统还可以包括数据处理和记录计算机中的缺陷检测模块。 缺陷检测模块与至少一个数据对象构建器通信,并被配置为使用数据对象来确定具有怀疑缺陷的轨道位置。

    Faulty component detecting system
    4.
    发明申请
    Faulty component detecting system 审中-公开
    故障部件检测系统

    公开(公告)号:US20020062195A1

    公开(公告)日:2002-05-23

    申请号:US09984719

    申请日:2001-10-31

    申请人: NEC CORPORATION

    发明人: Miki Shingo

    CPC分类号: G06F11/0793 H05K7/1455

    摘要: The system of the invention includes a board 2 mounted with a plurality of electronic components 1 and a controller 3, which has a faulty component detecting function and a hot swap function. Each of the electronic components 1 is mounted on the board 2 with electronic lock means 4A and 4B and also pressing means 5 and the board 2 is further mounted with a nonvolatile memory 6 in which a board-side unlock code is stored, which code is transmitted by the controller 3 to the electronic lock means 4A and 4B. The electronic lock means 4A and 4B are provided with a function to unlock a component if correspondence is detected between a board-side unlock code and a lock means-side unlock code.

    摘要翻译: 本发明的系统包括安装有多个电子部件1的板2和具有故障部件检测功能和热插拔功能的控制器3。 电子部件1中的每一个都安装在具有电子锁定装置4A和4B以及按压装置5的板2上,并且板2还安装有非易失性存储器6,其中存储了板侧解锁码,该代码是 由控制器3发送到电子锁定装置4A和4B。 如果在板侧解锁码和锁定装置侧解锁码之间检测到对应关系,则电子锁定装置4A和4B具有解锁部件的功能。

    Apparatus and method for analysis of guided ultrasonic waves
    5.
    发明申请
    Apparatus and method for analysis of guided ultrasonic waves 有权
    引导超声波分析装置及方法

    公开(公告)号:US20020029116A1

    公开(公告)日:2002-03-07

    申请号:US09828640

    申请日:2001-04-09

    摘要: Method and apparatus for using a guided wave to determine the location of one or more flaws in an inspected object are disclosed. An ultrasonic guided wave is launched into the object using conventional ultrasound methods, and the reflected/received guided wave is sampled to capture a series of individual reflected waveforms. The individual reflected waveforms are then partitioned according to the sampling time. Each of the partitioned acquired waveforms is compared with a selected time-varying dispersion-modeled reference waveform associated with the unique geometry of the inspected object, a multiplicity of nulltheoreticalnull flaw locations, and the characteristics of the original ultrasonic guided wave. To make a comparison, the reference waveform is also generated as a series of partitioned waveforms which model the shape of a wave that may be expected to be reflected from a multiplicity of theoretical flaws located in the object. The shape of the reflected waveforms is correlated with the shape of the reference waveforms, and a high level of correlation indicates the presence of a real flaw at the theoretical flaw location.

    摘要翻译: 公开了一种用于使用导波来确定检查对象中的一个或多个缺陷的位置的方法和装置。 使用传统的超声波方法将超声引导波发射到物体中,并且对反射/接收的导波进行采样以捕获一系列单独的反射波形。 然后根据采样时间对各个反射波形进行分区。 将每个分割获取的波形与与检测对象的独特几何,多个“理论”缺陷位置以及原始超声波引导波的特性相关联的选定的时变色散建模参考波形进行比较。 为了进行比较,参考波形也被生成为一系列分割波形,其对可能被预期从位于物体中的多个理论缺陷反射的波形进行建模。 反射波形的形状与参考波形的形状相关,高相关度表示在理论缺陷位置存在实际缺陷。

    Intergranular degradation assessment via random grain boundary network analysis
    6.
    发明申请
    Intergranular degradation assessment via random grain boundary network analysis 失效
    通过随机晶界网络分析进行晶间退化评估

    公开(公告)号:US20020002865A1

    公开(公告)日:2002-01-10

    申请号:US09780089

    申请日:2001-02-09

    CPC分类号: G01N17/00 G01N17/006

    摘要: A method is disclosed for determining the resistance of polycrystalline materials to intergranular degradation or failure (IGDF), by analyzing the random grain boundary network connectivity (RGBNC) microstructure. Analysis of the disruption of the RGBNC microstructure may be assess the effectiveness of materials processing in increasing IGDF resistance. Comparison of the RGBNC microstructures of materials exposed to extreme operating conditions to unexposed materials may be used to diagnose and predict possible onset of material failure due to IGDF.

    摘要翻译: 公开了通过分析随机晶界网络连通性(RGBNC)微结构来确定多晶材料对晶间退化或破坏(IGDF)的电阻的方法。 分析RGBNC微结构的破坏可以评估材料加工在增加IGDF电阻方面的有效性。 将暴露于极端操作条件的材料的RGBNC微观结构与未曝光材料的比较可用于诊断和预测由于IGDF引起的材料故障的可能发生。

    Sensor with failure threshold
    7.
    发明申请
    Sensor with failure threshold 有权
    传感器具有故障阈值

    公开(公告)号:US20040129989A1

    公开(公告)日:2004-07-08

    申请号:US10650452

    申请日:2003-08-27

    摘要: An inertial sensor with failure threshold includes a first body and a second body, which can move relative to one another and are constrained by a plurality of elastic elements, and a sample element connected between the first body and the second body and shaped so as to be subjected to a stress when the second body is outside of a relative resting position with respect to the first body. The sample element has at least one weakened region. The sensor may also include additional sample elements connected between the first and second bodies.

    摘要翻译: 具有故障阈值的惯性传感器包括第一主体和第二主体,其可以相对于彼此移动并被多个弹性元件约束;以及样本元件,其连接在第一主体和第二主体之间,并且成形为 当第二主体相对于第一主体位于相对静止位置之外时受到应力。 样品元件具有至少一个弱化区域。 传感器还可以包括连接在第一和第二主体之间的附加样本元件。

    Harmonic activity locator
    8.
    发明申请
    Harmonic activity locator 有权
    谐波活动定位器

    公开(公告)号:US20030130810A1

    公开(公告)日:2003-07-10

    申请号:US10313228

    申请日:2002-12-04

    摘要: Systems and methods for identifying the presence of a defect in vibrating machinery. An exemplary method comprises analysis of frequency spectrum vibration data of the machine. The method comprises deriving a harmonic activity index based on estimates of the energy associated with the frequency spectrum and the energy associated with the defect's harmonic series. The method may comprise deriving a value K by estimating a value M indicative of the energy of the defect's harmonic series and dividing M by the number of spectral lines corresponding to the defect's harmonic series. The method may further comprise deriving a value R by estimating a value Q indicative of the energy in the frequency spectrum data and dividing Q by the number of spectral lines of the frequency spectrum data. The method further comprises deriving the harmonic activity index based on the estimated K and R. Related systems for executing the methods are also disclosed.

    摘要翻译: 用于识别振动机械中存在缺陷的系统和方法。 一种示例性方法包括对机器的频谱振动数据进行分析。 该方法包括基于与频谱相关联的能量的估计和与缺陷的谐波序列相关联的能量来导出谐波活动指数。 该方法可以包括通过估计指示缺陷的谐波序列的能量的值M并将M除以对应于缺陷的谐波序列的谱线的数量来导出值K. 该方法可以进一步包括通过估计表示频谱数据中的能量的值Q并将Q除以频谱数据的谱线数来导出值R. 该方法还包括基于估计的K和R导出谐波活动指数。还公开了用于执行该方法的相关系统。

    Method for operating an image system of an imaging medical examination device and medical examination device
    10.
    发明申请
    Method for operating an image system of an imaging medical examination device and medical examination device 有权
    用于操作成像医疗检查装置和医疗检查装置的图像系统的方法

    公开(公告)号:US20020065611A1

    公开(公告)日:2002-05-30

    申请号:US09990346

    申请日:2001-11-23

    摘要: In a method for operating an imaging medical examination device (1), an event of the undisturbed operation of the medical examination device (1) automatically triggers a defect determination (63) for determining a defective pixel possibly present in the image. The event is derived for example from a switch-on process, a calibration process and/or an examination process. Preferably, after the defect determination (63), a correction process (67) is automatically triggered if a defective pixel was detected. A medical examination device (1) has a detection device (31) for automatically determining a defective pixel possibly present in the image, in which case the detection device (31) can be activated by an event of the undisturbed operation of the medical examination device. A correction device (41) for automatically eliminating a defective pixel that has possibly been detected is preferably present.

    摘要翻译: 在用于操作成像医疗检查装置(1)的方法中,医疗检查装置(1)的未受干扰的操作的事件自动触发用于确定可能存在于图像中的缺陷像素的缺陷确定(63)。 该事件例如来自接通过程,校准过程和/或检查过程。 优选地,在缺陷确定(63)之后,如果检测到缺陷像素,则自动触发校正处理(67)。 医疗检查装置(1)具有用于自动确定图像中可能存在的缺陷像素的检测装置(31),在这种情况下,检测装置(31)可以由医疗检查装置的未受干扰的操作的事件激活 。 优选地存在用于自动消除可能被检测到的缺陷像素的校正装置(41)。