A simple technique to increase the quality factor of micro-mechanical resonators
A simple technique to increase the quality factor of micro-mechanical resonators
复制标题
提高微机械谐振器品质因数的简单技术
DOI:
10.1117/12.818673
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Turnbull R
中科院分区:
文献类型:
--
作者:
Turnbull R
When a micromechanical resonator is moving in air, resistance to motion causes damping which is proportional to the velocity of the resonator. This results in a low quality factor and reduces the sensitivity of the resonator and hence any sensor incorporating the resonator, to any environmental changes. In this paper, a method for increasing the quality factor of micromechanical resonant sensors using velocity feedback is reported. To achieve this, the feedthrough signal between drive and sense connections due to parasitic capacitance is first cancelled in order to remove the previously unreported, undesirable effects that occur from the combination of velocity feedback and capacitive feedthrough. Using this technique, the quality factor of a resonator in air is increased by over two orders of magnitude.
影响因子:
4
作者:
MERTZ, J;MARTI, O;MLYNEK, J
通讯作者:
MLYNEK, J
影响因子:
1.6
作者:
E. A. Wachter;T. Thundat
通讯作者:
E. A. Wachter;T. Thundat
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Tamayo;Mar Alvarez;L. Lechuga
通讯作者:
L. Lechuga