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公开(公告)号：US3793627A
公开(公告)日：1974-02-19
申请号：US3793627D
申请日：1972-06-28
Applicant: GEN ELECTRIC
CPC classification number: G01P15/09 , B23Q17/0971 , B23Q17/098 , G01N2291/02827
Abstract: A cutting tool wear signal is obtained in known manner by sensing the sonic vibrations generated by the cutting action and extracting the high frequencies indicative of cutting tool wear. A chipped tool causes a rapid increase or decrease in the gradually rising averaged tool wear signal. The detection circuit detects this rapid increase or decrease with provision for rejecting the starting and stopping transients in the tool wear signal. The system is compatible with sonic detection of an excessively worn cutting tool.
Abstract translation: 通过感测由切割动作产生的声音振动并提取表示切削刀具磨损的高频，以已知的方式获得切削刀具磨损信号。 刀具磨损信号逐渐上升，切削刀具会迅速增加或减少。 检测电路检测到这种快速增加或减少，提供了拒绝刀具磨损信号中的起动和停止瞬变。 该系统与过度磨损的切削工具的声波检测兼容。
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公开(公告)号：US3798626A
公开(公告)日：1974-03-19
申请号：US3798626D
申请日：1972-02-28
Applicant: GEN ELECTRIC
Inventor： WEICHBRODT B , DARREL B
CPC classification number: F02C7/05
Abstract: Vibrations generated by objects impacting on the blades of the rotor of the engine are sensed by an accelerometer located on the rotor bearing mount. A peak detection circuit with a suitable decay time constant is provided for detection of the peaks in the signal from the accelerometer corresponding to peaks in the vibrations from the rotor. A level detection circuit is provided responsive to a predetermined level of the detected signal to actuate suitable indication means such as an alarm.
Abstract translation: 影响发动机转子叶片的物体产生的振动由位于转子轴承座上的加速度计感测。 提供具有合适的衰减时间常数的峰值检测电路，用于检测来自加速度计的信号中对应于来自转子的振动中的峰值的峰值。 响应于预定水平的检测信号提供电平检测电路以致动合适的指示装置，例如报警器。
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公开(公告)号：US3712130A
公开(公告)日：1973-01-23
申请号：US3712130D
申请日：1970-10-30
Applicant: GEN ELECTRIC
Inventor： WEICHBRODT B , DARREL B
CPC classification number: G01M13/021 , G01H1/003 , G01M13/028
Abstract: A distributed defect in one of a pair of meshing gears produces a modulation in amplitude of the component of the vibration signal which has the same repetition rate as the meshing frequency of the gears. The modulation has a frequency corresponding to the period of rotation of the gear with the distributed effect or a submultiple thereof. Detection of the modulation provides an indication of the existence, character and extent of the defect.
Abstract translation: 一对啮合齿轮之一中的分布式缺陷产生与齿轮的啮合频率相同的重复频率的振动信号分量的幅度调制。 调制具有对应于具有分布效应的齿轮的旋转周期的频率或其相应的频率。 调制的检测提供了缺陷的存在，特征和程度的指示。
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