Liquid Metal Elastomer Foam-Based Sensor Array Using Transmission Line for Continuous Spatial Stress Measurement

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Journal Pub Date : 2025-08-12 DOI:10.1109/JSEN.2025.3596546

Tingting Yu;Hongyao Tang;Xin Chen;Yuanyuan Chen;Yang Li;Jiayi Yang

引用次数: 0

Abstract

Stress sensor arrays are widely used in wearable devices, medical health monitoring, and intelligent robotics. However, existing sensor arrays require extensive wiring for each sensor unit, leading to low integration. This article introduces a sensor array based on liquid metal elastomer foam (LMEF) that utilizes a transmission line (TL) for continuous spatial stress measurement with just two wires. Compressing the LMEF changes the dielectric constant above the TL, altering the frequency of the attenuation peak in the transmission coefficient. This allows for continuous spatial stress measurement through just two wires. The mechanism is theoretically investigated via electromagnetic theory and finite-element simulation. Two sensor arrays, a linear sensor array (LSA) and an S-shaped sensor array, are fabricated to evaluate the continuous spatial stress measurement capabilities. Using these sensor arrays, an electronic piano, a digital keyboard, and a gaming control system are demonstrated.

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基于液体金属弹性体泡沫的传输线连续空间应力测量传感器阵列

应力传感器阵列广泛应用于可穿戴设备、医疗健康监测和智能机器人等领域。然而，现有的传感器阵列需要为每个传感器单元广泛布线，导致低集成度。本文介绍了一种基于液态金属弹性体泡沫（LMEF）的传感器阵列，它利用传输线（TL）进行连续的空间应力测量，只需两根电线。压缩LMEF改变了TL以上的介电常数，改变了透射系数中衰减峰的频率。这样就可以通过两根电线进行连续的空间应力测量。通过电磁理论和有限元仿真对其机理进行了理论研究。制作了线性传感器阵列（LSA）和s形传感器阵列两种传感器阵列来评估连续空间应力测量能力。利用这些传感器阵列，演示了电子钢琴、数字键盘和游戏控制系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Sensors Journal 工程技术-工程：电子与电气

CiteScore

7.70

自引率

14.00%

发文量

2058

审稿时长

5.2 months

期刊介绍： The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice