Single-input single-output multi-touch soft sensor systems using band-pass filters  

作　　者：Junhyung Kim Suhan Kim Yong-Lae Park 

机构地区：[1]Department of Mechanical Engineering,Institute of Advanced Machines and Design,Institute of Engineering Research,Seoul National University,Seoul 08826,Republic of Korea [2]Department of Electrical Engineering and Computer Science,Research Laboratory of Electronics,Massachusetts Institute of Technology,77 Massachusetts Avenue,Cambridge,MA 02139,USA

出　　处：《npj Flexible Electronics》2022年第1期681-690,共10页npj-柔性电子（英文）

基　　金：supported in part by the National Research Foundation (NRF) (Grant No.:NRF-2016R1A5A1938472);Institute of Information&Communications Technology Planning&Evaluation (IITP) (Grant No.:2021-0-00896)both funded by the Korea Government (MSIT);in part by the Technology Innovation Program (Grant No.:20008912)also funded by the Korea Government (MOTIE).

摘　　要：In many soft sensor systems,external wires for connecting the sensors to control circuits have posed practical problems,in terms of compact form factors and physical robustness.This study proposes a design of soft sensor arrays that can operate with a drastically reduced number of wires without degrading the original performance.The proposed concept is an array of soft sensing modules,each of which consists of an inductor and a capacitor embedded next to the resistive sensing module,constructing a resistorinductor-capacitor band-pass filter.By adjusting the values of the capacitance and the inductance,unique frequency band is assigned to each sensing module,enabling the distinctive detection using only two external wires regardless of the number of modules.The multi-touch sensing functionality of the system is analytically modeled and experimentally characterized.Taking advantage of the design,a fingertip tactile sensor and an insole foot pressure sensor are demonstrated as practical applications.

关 键 词：connecting CONSTRUCTING TOUCH 

分 类 号：TN713[电子电信—电路与系统] TP212[自动化与计算机技术—检测技术与自动化装置]