Estimation of Capacitance
Estimation of Capacitance
复制标题
电容估算
DOI：
--
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
R. Miles
中科院分区：
文献类型：
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作者：
R. Miles
每年生产的绝大多数麦克风通过使用带电驻极体材料或施加偏置电压来利用电容感测。这些麦克风的设计基本上在所有情况下都依赖于简单的公式来估计平行板电极的电容。这极大地限制了设计遵循普遍存在的平行板配置，以及所有常见的设计挑战。为了克服这种限制，在下文中，我们回顾感测电荷的基本原理，并检查克服电容式麦克风设计中遇到的几个常见限制的电容式感测几何结构。我们的方法遵循[1]中描述的方法，其提出了一种静电感测方案，该方案导致移动电极上的静电力和刚度最小。
The vast majority of microphones that are produced each year utilize capacitive sensing either through the use of a charged electret material or an applied bias voltage. The design of these microphones, in essentially all cases, relies on simple formulas to estimate the capacitance of parallel plate electrodes. This greatly limits the designs to follow the ubiquitous parallel plate configuration, with all of its common design challenges. In an attempt to overcome this limitation, in the following we review the basic principles of sensing charge and examine a capacitive sensing geometry that overcomes several of the common limitations encountered in capacitive microphone design. Our approach follows that described in [1], which presents an electrostatic sensing scheme that results in a minimum of electrostatic force and stiffness on the moving electrode.
影响因子：
4.6
作者：
Daeichin, Meysam;Ozdogan, Mehmet;Miles, Ronald
通讯作者：
Miles, Ronald