杭州电子科技大学微电子CAD研究所
纸质出版:2018
移动端阅览
朱彬彬, 王路文, 汶飞, 等. 新型双轴电容式加速度传感器设计[J]. 传感器与微系统, 2018,(2):83-85.
ZHU Bin-bin, WANG Lu-wen, WEN Fei, et al. Design of novel dual-axis capacitive acceleration sensor[J]. 2018, (2): 83-85.
朱彬彬, 王路文, 汶飞, 等. 新型双轴电容式加速度传感器设计[J]. 传感器与微系统, 2018,(2):83-85. DOI: 10.13873/J.1000-9787(2018)02-0083-03.
ZHU Bin-bin, WANG Lu-wen, WEN Fei, et al. Design of novel dual-axis capacitive acceleration sensor[J]. 2018, (2): 83-85. DOI: 10.13873/J.1000-9787(2018)02-0083-03.
为了实现多轴加速度检测
设计了一种新型双轴电容式加速度传感器。由内、外2个质量块组成
分别由4组折叠梁支撑。传感器通过固定梳齿和活动梳齿之间的距离变化引起两者电容值发生变化
最终测得加速度。通过ANSYS仿真分析得出:传感器的位移灵敏度为0.084 5μm/g
n
(X轴)和0.138 1μm/g
(Y轴)。结构的一
三
阶谐振频率分别为1.34
1.71
14.48 kHz。由于各阶模态频率相差很大
避免了跨轴信号的干扰。
In order to realize detection of multi-axis acceleration
a new type of dual-axis capacitive acceleration sensor is designed. The structure is composed of an inner and an outer mass block
and the structure is respectively supported by four groups of folding beams. The movement of mass changes the gap between the fixed and active fingers
thereby leading to the variation of capacitance. ANSYS simulation analysis shows that the displacement sensitivity of the sensor is 0. 084 5 μm/g
( for X axis) and 0. 1381 μm/g
( for Y axis). In addition
the first three resonant frequencies of the structure are 1. 34 kHz
1. 71 kHz and 14. 48 kHz
respectively. Because each order modal frequency has great difference
so interference of cross shaft signal can be avoided.
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