牛宝良.振动信号的全频带三参量测量[J].装备环境工程,2017,14(12):51-54. NIU Bao-liang.Three Variable Measurement on Whole Frequency Band of Vibration Signal[J].Equipment Environmental Engineering,2017,14(12):51-54. |
振动信号的全频带三参量测量 |
Three Variable Measurement on Whole Frequency Band of Vibration Signal |
投稿时间:2017-07-02 修订日期:2017-12-15 |
DOI:10.7643/ issn.1672-9242.2017.12.010 |
中文关键词: 位移;速度 加速度;三参量控制;振动;信号处理 |
英文关键词:displacement velocity acceleration three variable control vibration signal process |
基金项目: |
|
|
摘要点击次数: |
全文下载次数: |
中文摘要: |
目的 解决振动信号的加速度、速度、位移三参量全频带测量问题。方法 提出一种由振动加速度信号、位移信号生成全频带位移、速度、加速度信号的方法,对实测位移信号微分并低通滤波,对实测加速度信号积分并高通滤波,然后两者相加,得到全频段的加速度、速度、位移信号,所用的微分、积分、滤波都是用离散传函表示。结果 不论是正弦振动还是随机振动,生成的位移、速度、加速度信号与正确的位移、速度、加速度信号一致。结论 该方法可以由实测位移信号、加速度信号实时生成全频带三参量信号。 |
英文摘要: |
Objective To solve problems in whole frequency band measurement of vibration signal from three variables: acceleration, velocity and displacement. Methods This paper presented a method to generate displacement, velocity and acceleration signal of whole frequency band from displacement signal and acceleration signal. Displacement signal was derived and filtered by low-pass filter. Acceleration signal was integrated and filtered by high-pass filter. Then the displacement, velocity, acceleration signal of the whole frequency band was obtained by integrating the two results. Derivative, integrator, filter were all described in Z transfer function. Results S Displacement, velocity, acceleration signal generated in both sinusoidal vibration and random vibration were quite consistent with exact displacement, velocity, acceleration signal. Conclusion The presented method can generate real-timely displacement, velocity, acceleration signal from displacement signal and acceleration signal. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |