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1. 发明授权

US08810173B2 Rotating machinery condition monitoring using position sensor 有权
标题翻译：使用位置传感器进行旋转机械状态监控
公开(公告)号：US08810173B2
公开(公告)日：2014-08-19
申请号：US12948951
申请日：2010-11-18
申请人： Linglai Li , Wei Qian , Thomas D. Lundell
发明人： Linglai Li , Wei Qian , Thomas D. Lundell
IPC分类号： H02P6/16
CPC分类号： H02P29/0241
摘要： Continuous monitoring and fault diagnosis of rotating machinery during variable speed operation is performed using only a position feedback signal. The position sensor generates a periodic waveform having multiple pulses per revolution of the machine. A circuit is included to detect, for example, a zero crossing or edge of the periodic waveform. At each detected zero crossing or edge, the time and position of the event is stored in memory. Other data, such as the current in the motor, may also be sampled and stored in memory. Because the sampled data is triggered by repeated feature of the position feedback signal, the sampled data is in a stationary reference frame in the position domain. Frequency analysis is performed on the sampled data, and the frequency components present in either the sampled signal are analyzed to identify the presence of a fault in the rotating machinery.
摘要翻译：只能使用位置反馈信号，进行变速运转时旋转机械的连续监控和故障诊断。位置传感器产生每单位具有多个脉冲的周期性波形。包括电路以检测例如周期性波形的过零或边缘。在每个检测到的零交叉或边缘，事件的时间和位置存储在存储器中。其他数据，例如电动机中的电流也可以被采样并存储在存储器中。由于采样数据由位置反馈信号的重复特征触发，采样数据位于位置域中的静止参考帧。对采样数据进行频率分析，并分析存在于采样信号中的频率分量，以识别旋转机械中故障的存在。

2. 发明申请

US20120126738A1 Rotating Machinery Condition Monitoring Using Position Sensor 有权
标题翻译：使用位置传感器进行旋转机械状态监测
公开(公告)号：US20120126738A1
公开(公告)日：2012-05-24
申请号：US12948951
申请日：2010-11-18
申请人： Linglai Li , Wei Qian , Thomas D. Lundell
发明人： Linglai Li , Wei Qian , Thomas D. Lundell
IPC分类号： H02K11/00
CPC分类号： H02P29/0241
摘要： Continuous monitoring and fault diagnosis of rotating machinery during variable speed operation is performed using only a position feedback signal. The position sensor generates a periodic waveform having multiple pulses per revolution of the machine. A circuit is included to detect, for example, a zero crossing or edge of the periodic waveform. At each detected zero crossing or edge, the time and position of the event is stored in memory. Other data, such as the current in the motor, may also be sampled and stored in memory. Because the sampled data is triggered by repeated feature of the position feedback signal, the sampled data is in a stationary reference frame in the position domain. Frequency analysis is performed on the sampled data, and the frequency components present in either the sampled signal are analyzed to identify the presence of a fault in the rotating machinery.
摘要翻译：只能使用位置反馈信号，进行变速运转时旋转机械的连续监控和故障诊断。位置传感器产生每单位具有多个脉冲的周期性波形。包括电路以检测例如周期性波形的过零或边缘。在每个检测到的零交叉或边缘，事件的时间和位置存储在存储器中。其他数据，例如电动机中的电流也可以被采样并存储在存储器中。由于采样数据由位置反馈信号的重复特征触发，采样数据位于位置域中的静止参考帧。对采样数据进行频率分析，并分析存在于采样信号中的频率分量，以识别旋转机械中故障的存在。

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