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公开(公告)号：US06275781B1
公开(公告)日：2001-08-14
申请号：US09056155
申请日：1998-04-06
IPC分类号： G01H1700
CPC分类号： G01N29/46 , G01M13/045 , G01N29/12 , G01N29/42 , G01N2291/014 , G01N2291/044 , G01N2291/2696
摘要： A vibration data processor and processing method uses a frequency domain filter having low pipeline delay and accurate time domain signal reconstruction. The filter may be user configurable, and the filter may receive input data from a variable number of decimation stages. Sequences of extracted vibrational features are routed to a variable length output buffer for event detection.
摘要翻译： 振动数据处理器和处理方法使用具有低流水线延迟和精确时域信号重建的频域滤波器。 滤波器可以是用户可配置的，并且滤波器可以从可变数量的抽取级接收输入数据。 提取的振动特征的序列被路由到用于事件检测的可变长度输出缓冲器。
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公开(公告)号：US06199422B1
公开(公告)日：2001-03-13
申请号：US09056157
申请日：1998-04-06
IPC分类号： G01H100
CPC分类号： G05B23/0256 , G05B9/03 , G05B23/0262
摘要： A method and system for monitoring the operational condition of a machine is disclosed. The system includes: a test probe configured to be coupled to the machine for measuring an operational parameter of the machine and for outputting a test signal representative of the measured operational parameter; a fault condition detection circuit, coupled to the test probe, for receiving and processing the test signal so as to detect a fault condition of the machine; a probe failure detection circuit, coupled to the test probe, for receiving the test signal and detecting a failure condition of the test probe if the test signal is not within defined limits, wherein the probe failure detection circuit provides a data path that is separate from the fault condition detection circuit; and a processor, coupled to the fault condition detection circuit and the probe failure detection circuit, for initiating a defined action in response to signals received from the fault condition detection circuit and the probe failure detection circuit. The method includes the following acts: measuring an operational parameter of the machine with a probe coupled to the machine; outputting a test signal representative of the measured operational parameter; providing the test signal to a machine fault detection circuit for processing; determining whether the test signal indicates that a machine fault condition exists; providing the test signal to a probe failure detection circuit; determining whether the test signal indicates a probe failure condition exists, wherein the probe failure detection circuit operates independently of the machine fault detection circuit; and initiating a defined action if it is determined that a machine fault condition exists and a probe failure condition is not detected.
摘要翻译： 公开了一种用于监视机器操作状态的方法和系统。 该系统包括：测试探针，其被配置为耦合到机器，用于测量机器的操作参数并输出表示测量的操作参数的测试信号; 耦合到测试探头的故障状态检测电路，用于接收和处理测试信号，以便检测机器的故障状况; 如果测试信号不在限定范围内，则耦合到测试探头的探针故障检测电路用于接收测试信号并检测测试探针的故障状态，其中探测器故障检测电路提供与 故障状态检测电路; 以及耦合到故障状态检测电路和探针故障检测电路的处理器，用于响应于从故障状态检测电路和探针故障检测电路接收的信号而发起定义的动作。 该方法包括以下动作：使用耦合到机器的探头来测量机器的操作参数; 输出表示测量的操作参数的测试信号; 向机器故障检测电路提供测试信号进行处理; 确定测试信号是否指示存在机器故障状况; 向探头故障检测电路提供测试信号; 确定测试信号是否指示探针故障条件，其中探头故障检测电路独立于机器故障检测电路工作; 并且如果确定存在机器故障条件并且未检测到探针故障条件，则启动定义的动作。
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公开(公告)号：US06789025B2
公开(公告)日：2004-09-07
申请号：US10313766
申请日：2002-12-04
申请人： Johannes I. Boerhout
发明人： Johannes I. Boerhout
IPC分类号： G01L700
CPC分类号： G05B23/0235 , G01H1/003
摘要： The condition of a machine is monitored with cyclic time averaging, a technique of allocating vibration energy to particular sources in a complex signal. The cyclic time averaging method is directed at processing time-domain vibration data of the machine to produce an averaged time waveform over a selected cyclic time period. Utilizing cyclic time averaging, the systems and methods analyze machine vibration signals to detect and evaluate specific sources of enemy contribution to the vibration energy of the machine. It is not necessary to employ a triggering signal to obtain the averaged time waveform.
摘要翻译： 通过循环时间平均来监测机器的状况，这是在复杂信号中将振动能量分配给特定源的技术。 循环时间平均法针对机器的时域振动数据进行处理，以在选定的循环时间段内产生平均时间波形。 利用循环时间平均，系统和方法分析机器振动信号，以检测和评估敌方对机器振动能量贡献的具体来源。 不需要采用触发信号来获得平均时间波形。
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公开(公告)号：US06792360B2
公开(公告)日：2004-09-14
申请号：US10313228
申请日：2002-12-04
IPC分类号： G06F1900
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。
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公开(公告)号：US07289919B2
公开(公告)日：2007-10-30
申请号：US10903949
申请日：2004-07-30
申请人： Johannes I. Boerhout
发明人： Johannes I. Boerhout
IPC分类号： G01L7/00
CPC分类号： G05B23/0235 , G01H1/003
摘要： A cyclic time averaging method is directed at processing time-domain vibration data of the machine to produce an averaged time waveform over a selected cyclic time period. It is not necessary to employ a triggering signal to obtain the averaged time waveform.
摘要翻译： 循环时间平均法涉及处理机器的时域振动数据，以在选定的循环时间段内产生平均时间波形。 不需要采用触发信号来获得平均时间波形。
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公开(公告)号：US06633822B2
公开(公告)日：2003-10-14
申请号：US09912224
申请日：2001-07-23
IPC分类号： G01R2316
CPC分类号： G01N29/46 , G01M13/045 , G01N29/12 , G01N29/42 , G01N2291/014 , G01N2291/044 , G01N2291/2696
摘要： A vibration data processor and processing method uses a frequency domain filter having low pipeline delay and accurate time domain signal reconstruction. The filter may be user configurable, and the filter may receive input data from a variable number of decimation stages. Sequences of extracted vibrational features are routed to a variable length output buffer for event detection.
摘要翻译： 振动数据处理器和处理方法使用具有低流水线延迟和精确时域信号重建的频域滤波器。 滤波器可以是用户可配置的，并且滤波器可以从可变数量的抽取级接收输入数据。 提取的振动特征的序列被路由到用于事件检测的可变长度输出缓冲器。
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