公开(公告)号：US06275781B1

公开(公告)日：2001-08-14

申请号：US09056155

申请日：1998-04-06

申请人： Phillip L. Maness ,  Johannes I. Boerhout

发明人： Phillip L. Maness ,  Johannes I. Boerhout

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。

公开(公告)号：US06199422B1

公开(公告)日：2001-03-13

申请号：US09056157

申请日：1998-04-06

申请人： Johannes I. Boerhout ,  Phillip L. Maness ,  Hoa Nguyen ,  Wane D. Wier

发明人： Johannes I. Boerhout ,  Phillip L. Maness ,  Hoa Nguyen ,  Wane D. Wier

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。

公开(公告)号：US5854553A

公开(公告)日：1998-12-29

申请号：US666860

申请日：1996-06-19

申请人： John T. Barclay ,  Phillip L. Maness ,  Leroy R. Bannach

发明人： John T. Barclay ,  Phillip L. Maness ,  Leroy R. Bannach

IPC分类号： G01B7/02 ,  G01V3/10 ,  G01G7/14 ,  G01R33/12

CPC分类号： G01V3/101 ,  G01B7/023

摘要： The output of an eddy current probe is demodulated and subsequently linearized using an analog to digital converter, a digital signal processor, and a memory. The linearized digital output signal is converted back to an analog signal, the voltage of which is preferably directly proportional to the position of the conductive target in relation to the probe.

摘要翻译： 涡流探头的输出被解调并随后使用模数转换器，数字信号处理器和存储器进行线性化。 线性化数字输出信号被转换回模拟信号，其电压优选地与导电靶相对于探针的位置成正比。