摘要
压力传感器仍然面临着将高灵敏度与宽检测范围相结合的挑战.基于此,我们设计了一种拉-压转换(TC)结构,并将其与变刚度策略相结合来制造压力传感器件.该结构能够将二维可拉伸材料的传感性能转换为三维可压缩设备的传感性能.传感和机械性能可以使用模拟和理论计算进行设计.斜面结构能够在24.3 N范围内提供线性传感.变刚度设计策略使传感器能够以高灵敏度(3.5 N^(-1))感知较小载荷,并具有宽的检测范围(0.002–24.300 N,扩展范围82.6 N).此外,该传感结构可以在水下环境中稳定工作.这种使用二维可拉伸应变传感器作为传感单元来开发压缩传感装置的设计策略将为未来提供新的思路.
Pressure sensors still face the challenge of combining high sensitivity with a wide detection range. In this study, we designed a tension±compression conversion structure and combined it with a variable stiffness design strategy to fabricate pressure-sensing devices. The structure can convert the sensing properties of two-dimensional(2D) stretchable materials into the sensing properties of 3D compressible devices. The sensing and mechanical properties can be designed through simulations and theoretical calculations. The slope structure provides linear sensing within 24.3 N. The variable stiffness design strategy enables the sensor to sense a small load with high sensitivity(3.5 N^(-1)) with a wide pressure range(0.002±24.3 N, with an extended range of 82.6 N). In addition, the sensing structure can work stably in an underwater environment. This design strategy of using 2D stretchable strain sensors as the sensing unit to develop a compression sensor device will provide new ideas for future sensor design.
作者
李朋阳
熊金华
闫倩
丁仁杰
郑皓文
薛福华
赵旭
陈仲
刘宗林
唐志共
彭庆宇
赫晓东
Pengyang Li;Jinhua Xiong;Qian Yan;Renjie Ding;Haowen Zheng;Fuhua Xue;Xu Zhao;Zhong Chen;Zonglin Liu;Zhigong Tang;Qingyu Peng;Xiaodong He(National Key Laboratory of Science and Technology on Advanced Composites in Special Environments,Center for Composite Materials and Structures,Harbin Institute of Technology,Harbin150080,China;Frontiers Science Center for Matter Behave in Space Environment,Harbin Institute of Technology,Harbin 150080,China;Shenzhen STRONG Advanced Materials Research Institute Co.,Ltd.,Shenzhen 518000,China)
基金
financially supported by the Fundamental Research Funds for the Central Universities
Heilongjiang Provincial Natural Science Foundation of China (YQ2020E009)。
