Karmakar Rajat Subhra, Lin Hsin-Fu, Huang Jhih-Fong, Chao Jui-I, Liao Ying-Chih, Lu Yen-Wen
Department of Biomechatronics Engineering, National Taiwan University, Taipei 10617, Taiwan.
Master Program of Sports Facility Management and Health Promotion, National Taiwan University, Taipei 10617, Taiwan.
Biosensors (Basel). 2024 Dec 27;15(1):8. doi: 10.3390/bios15010008.
An origami-based tactile sensory ring utilizing multilayered conductive paper substrates presents an innovative approach to wearable health applications. By harnessing paper's flexibility and employing origami folding, the sensors integrate structural stability and self-packaging without added encapsulation layers. Knot-shaped designs create loop-based systems that secure conductive paper strips and protect sensing layers. Demonstrating a sensitivity of 3.8 kPa at subtle pressures (0-0.05 kPa), the sensors detect both minimal stimuli and high-pressure inputs. Electrical modeling of various origami configurations identifies designs with optimized performance with a pentagon knot offering higher sensitivity to support high-sensitivity needs. Meanwhile a square knot provides greater precision and quicker recovery, balancing sensitivity and stability for real-time feedback devices. The enhanced elastic modulus from folds remains within human skin's elasticity range, ensuring comfort. Applications include grip strength monitoring and pulse rate detection from the thumb, capturing pulse transit time (PTT), an essential cardiovascular biomarker. This design shows the potential of origami-based tactile sensors in creating versatile, cost-effective wearable health monitoring systems.
一种基于折纸的触觉传感环，利用多层导电纸基板，为可穿戴健康应用提供了一种创新方法。通过利用纸张的柔韧性并采用折纸折叠，传感器在不添加封装层的情况下集成了结构稳定性和自封装功能。结形设计创建了基于环的系统，可固定导电纸条并保护传感层。该传感器在微妙压力（0 - 0.05 kPa）下的灵敏度为3.8 kPa，既能检测到最小刺激，也能检测到高压输入。对各种折纸配置的电气建模确定了具有优化性能的设计，五边形结对支持高灵敏度需求具有更高的灵敏度。同时，方形结提供了更高的精度和更快的恢复速度，为实时反馈设备平衡了灵敏度和稳定性。折叠产生的增强弹性模量仍在人体皮肤的弹性范围内，确保了舒适度。应用包括握力监测和拇指脉搏率检测，捕捉脉搏传输时间（PTT），这是一种重要的心血管生物标志物。这种设计展示了基于折纸的触觉传感器在创建多功能、经济高效的可穿戴健康监测系统方面的潜力。
