In this paper, a capacitive pressure-sensitive structure with linkage film is proposed to expand the linear response range and linearity of the touch mode capacitive pressure-sensitive structure. In its construct, the top and bottom electrode plates are both sensitive to pressure and movable, thereby adjusting the way of contact and improving the performance. Through the simulation with the finite-elements method, characteristics of the capacitive pressure-sensitive structure with linkage film are analyzed. Results indicate that when compared to the touch mode capacitive pressure-sensitive structure, the linear response range of the proposal is more than doubled, and its nonlinearity can be significantly decreased.

本文提出了一种带有连接膜的电容式压敏结构，以扩大触摸模式电容式压敏结构的线性响应范围和线性。在其构造中，顶部和底部电极板都对压力敏感并且可移动，从而调节接触方式并提高性能。通过有限元模拟，分析了带有连接膜的电容式压敏结构的特性。结果表明，与触摸模式电容式压敏结构相比，该建议的线性响应范围增加了一倍以上，并且其非线性可以显着降低。