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Medientyp:
E-Artikel
Titel:
Dynamic analysis of the resonator for resonant accelerometer
Beteiligte:
Wang, Haoyu;
Li, Yan
Erschienen:
Emerald, 2018
Erschienen in:
Sensor Review, 38 (2018) 4, Seite 478-485
Sprache:
Englisch
DOI:
10.1108/sr-11-2017-0239
ISSN:
0260-2288
Entstehung:
Anmerkungen:
Beschreibung:
PurposeThis paper aims to develop a resonant accelerometer for structure optimization. The dynamic analysis of the resonator for resonant accelerometer are investigated.Design/methodology/approachFirst, the working principle and mechanical model of the resonator are introduced. Moreover, dynamic analysis of the resonator is used for the purpose of investigating the dynamic characteristics of the resonant accelerometer. Finally, to verify the feasibility of the proposed dynamic analysis method, resonant accelerometer 1gstatic tumbling experiments of resonant accelerometer are built.FindingsIt can be seen from the natural frequency and the resonator mode that only when the resonator root stiffness is much greater than the resonant beam stiffness, there will be appear corresponding interference mode, therefore,the resonator root stiffness is avoid too large in design. The stability analysis result of resonant beam under axial force show that the resonant beam parameters should be maintained a constant. At the same time, it is concluded from the vibration mode analysis for resonant beam that the influence of the beam thickness and beam errors on the first and second order modes is great. On the other hand, it is concluded from the test result that the designed resonant accelerometer sensitivity is 98 Hz/g, which shows that the dynamic analysis method is feasible.Practical implicationsThe research may be significant in the field of resonant sensors, supporting a variety of practical applications such as phone and game.Originality/valueThis paper seeks to establish a foundation for designing and optimizing resonant accelerometer structure. To this end, the dynamic analytical method of the resonator for resonant accelerometer was discussed. The results of this research have proved that the dynamic analysis based on a resonator is an effective approach and instructional in practical resonant sensor design.