Besides, at the non-drive-end of the primary shaft, some mechanical fitting in the bearing case were detected loosen, through spectrum-zoom analysis and waveform comparison in the time-domain.
另外，由转频附近细化谱分析及时域波形比较，发现输入轴非电机端轴承座内机件还有径向配合松动故障。
Through the Zoom spectrum analysis of stator curr - ent. such defects as rotor bar break will be recognized.
通过对定子电流进行细化频谱分析，可以准确识别转子断条等一类故障。
Spectrum zoom technique and power cepstrum are two important aided methods in vibration signal analysis.
频谱细化技术和功率倒频谱是振动信号分析的两种重要辅助方法。
By making a systematic theory analysis, specifically calculating deduction, an ideal zoom lens which has simple configuration, performance reliability, good image quality has been successfully gained.
经过系统的理论分析，具体的推导计算得到了结构简单、性能可靠、成像质量理想的变焦距物镜。
The first part includes zoom transform, cepstrum analysis, Hilbert transform, and the data transfer between the spectrum analyzer and the computer.
前一部分包括细化变换、倒谱技术、希尔伯特变换和谱分析器与计算机之间的数据传输。
The first part includes zoom transform, cepstrum analysis, Hilbert transform, and the data transfer between the spectrum analyzer and the computer.
前一部分包括细化变换、倒谱技术、希尔伯特变换和谱分析器与计算机之间的数据传输。
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