柔性电导率断层扫描传感器实现高精度触觉感知，适合可穿戴人机交互。
Flexible electrical impedance tomography for tactile interfaces
- 采用水凝胶导电层与格子图案设计，提升灵敏度与耐用性。
- 实验验证可高精度识别多种触觉模式，适用于实时交互场景。
- 适合可穿戴设备、柔性人机接口等动态应用，具扩展潜力。
柔性电导率断层扫描（EIT）是人机交互（HMI）中触觉传感的新兴技术，相比传统阵列式触觉传感器，具有柔性、可扩展、成本低的一体化优势。本文提出一种基于水凝胶导电层的格子图案柔性EIT触觉传感器，旨在提升灵敏度并保持耐久性。通过仿真研究分析了格子宽度与导电层厚度对性能的影响，确定了优化的设计参数以增强功能表现。实验评估表明，该传感器能够以高精度检测多种触觉模式。实际应用方面，将其集成至HMI系统中，成功实现对虚拟游戏的实时控制，展示了其在动态、多功能触觉交互中的潜力。本研究为可穿戴、自适应的柔性人机交互技术发展奠定了基础。
原文摘要 · Abstract (English)
Flexible electrical impedance tomography (EIT) is an emerging technology for tactile sensing in human-machine interfaces (HMI). It offers a unique alternative to traditional array-based tactile sensors with its flexible, scalable, and cost-effective one-piece design. This paper proposes a lattice-patterned flexible EIT tactile sensor with a hydrogel-based conductive layer, designed for enhanced sensitivity while maintaining durability. We conducted simulation studies to explore the influence of lattice width and conductive layer thickness on sensor performance, establishing optimized sensor design parameters for enhanced functionality. Experimental evaluations demonstrate the sensor's capacity to detect diverse tactile patterns with a high accuracy. The practical utility of the sensor is demonstrated through its integration within an HMI setup to control a virtual game, showcasing its potential for dynamic, multi-functional tactile interactions in real-time applications. This study reinforces the potential of EIT-based flexible tactile sensors, establishing a foundation for future advancements in wearable, adaptable HMI technologies.
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