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1. 发明授权

US06629058B2 Fault diagnosis method and apparatus 失效
标题翻译：故障诊断方法及装置
公开(公告)号：US06629058B2
公开(公告)日：2003-09-30
申请号：US09836830
申请日：2001-04-17
申请人： Hidemichi Komura , Kazuo Shibata , Kazuhiro Shimomura
发明人： Hidemichi Komura , Kazuo Shibata , Kazuhiro Shimomura
IPC分类号： G06F1132
CPC分类号： G01M13/028 , G01H1/003 , G01M15/12
摘要： A fault diagnosis apparatus comprises a vibration sensor for detecting vibration waveforms being generating by machinery or equipment, a cumulative frequency computing device for obtaining a cumulative frequency distribution curve of an absolute value of the vibration waveforms detected by the vibration sensor, a maximum value detecting device for obtaining a maximum value xp of the vibration waveforms detected by the vibration sensor, a peak ratio computing device for obtaining the peak ratio &bgr;1 of an equivalent effective value &sgr;eq in the cumulative frequency distribution curve computed by the cumulative frequency computing device to the maximum value xp computed by the maximum value detecting device, and a fault diagnosing device for diagnosing the degree of fault of the machinery or equipment from the magnitude of the peak ratio &bgr;1 computed by the peak ratio computing device.
摘要翻译：故障诊断装置包括用于检测机械或设备产生的振动波形的振动传感器，用于获得由振动传感器检测的振动波形的绝对值的累积频率分布曲线的累积频率计算装置，最大值检测装置用于获得由所述振动传感器检测到的振动波形的最大值xp，峰值比计算装置，用于获得由所述累积频率计算装置计算出的累积频率分布曲线中的等效有效值sigmaeq的峰值比β1至最大值由最大值检测装置计算的xp，以及用于根据由峰值比计算装置计算的峰值比β1的大小来诊断机械或设备的故障程度的故障诊断装置。

2. 发明授权

US06498992B1 Defect diagnosis method and defect diagnosis apparatus 失效
标题翻译：缺陷诊断方法和缺陷诊断装置
公开(公告)号：US06498992B1
公开(公告)日：2002-12-24
申请号：US09291260
申请日：1999-04-13
申请人： Toshio Toyota , Tomoya Niho , Hou Jinyama , Hidemichi Komura
发明人： Toshio Toyota , Tomoya Niho , Hou Jinyama , Hidemichi Komura
IPC分类号： G01B528
CPC分类号： G01M13/045 , G01M13/028
摘要： A method for diagnosis of a defect of an object to be inspected, such as a rotational machine, etc., by measuring a vibration generated thereby, wherein a measured signal generated by the object is detected, an amplitude probability density function of wave-form of the obtained measured signal is expanded orthogonally through a Gram-Charlier series, and the Gram-Charlier series are calculated so as to make diagnosis of defect(s) in the object to be inspected.
摘要翻译：一种用于通过测量由此产生的振动来诊断待检查对象的缺陷的方法，其中检测由对象产生的测量信号，波形的振幅概率密度函数的所获得的测量信号通过Gram-Charlier系列正交扩展，并且计算Gram-Charlier系列，以便对要检查的对象中的缺陷进行诊断。

3. 发明授权

US5396801A Vibrometer 失效
标题翻译：振动计
公开(公告)号：US5396801A
公开(公告)日：1995-03-14
申请号：US149617
申请日：1993-11-09
申请人： Hidemichi Komura
发明人： Hidemichi Komura
IPC分类号： G01H1/00 , G10K11/24 , G01M7/00
CPC分类号： G01H1/00 , G10K11/24
摘要： A hand-held vibrometer for measuring vibration at a surface of a vibrating object includes plural vibration sensors, each of which has a respective axis of measurement. The vibration sensors are mounted on a rigid body so that the respective axes of measurement of the sensors intersect at a contact point on the rigid body, which contact point is to be applied to the vibrating object. The contact point is at a central axis of the rigid body and the respective axes of measurement of the vibration sensors all intersect the central axis of the rigid body at the same angle. Respective amounts of vibration in the vibrating object in three orthogonal measurement axes are calculated on the basis of output signals provided from the plurality of vibration sensors. The above-described arrangement of the vibration sensors increases the contact resonance frequency, and consequently the measurement range, of the vibrometer.
摘要翻译：用于测量振动物体表面的振动的手持式振动计包括多个振动传感器，每个振动传感器具有各自的测量轴。振动传感器安装在刚性体上，使得传感器的各个测量轴在刚体上的接触点处相交，该接触点将被施加到振动物体上。接触点在刚体的中心轴线处，并且各个振动传感器的测量轴线都以相同的角度与刚体的中心轴线相交。基于从多个振动传感器提供的输出信号计算三个正交测量轴中的振动对象中的各种振动量。振动传感器的上述布置增加了振动计的接触共振频率，并因此增加了测量范围。

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