FU Xing-ming1, TAN Liu-xi1, YAO Yuan3, et al. Structure optimization of corrugated diaphragm in pressure sensor packaging[J]. 2007, (7): 80-81+84. DOI: 10.13873/j.1000-97872007.07.020.
压力传感器封装中波纹膜片的结构优化
摘要
对压力传感器隔离封装中的关键部件——波纹膜片
采用有限元分析的方法
分别得到了2
4
6个波纹的膜片的弹性特性
并根据封装要求选择了6波纹的膜片。通过比较不同波数的膜片对压力传感器输出信号的影响
验证了膜片结构优化的正确性。最后
使用6波纹的膜片进行封装
得到了性能稳定的压力传感器
并测试得到了其主要的静态参数。
Abstract
The corrugated diaphragm
one of the most important isolation packaging parts
is optimized in structure.Pressure-displacement curves of corrugated diaphragms with 2
4
6 pitches are obtained by finite elements analysis(FEA)and the 6 pitch one is selected based on the packaging requirements.The optimization of corrugated diaphragm is testified by comparing the effects of diaphragms on the output of pressure sensors.At last
the 6 pitches diaphragm is conducted into packaging