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| Three Variable Measurement on Whole Frequency Band of Vibration Signal |
| Received:July 02, 2017 Revised:December 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.12.010 |
| KeyWord:displacement velocity acceleration three variable control vibration signal process |
| Author | Institution |
| NIU Bao-liang |
Institute of System Engineering, China Academy of Engineering Physics，Mianyang , China |
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| Abstract: |
| 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. |
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