This paper presents the design, fabrication, and characterization results of a paper-based, low-cost, easy-to-use, comfortable and wearable tactile sensor array for human health monitoring applications. Paper substrate and spray-deposited metallic electrodes and traces are employed to achieve a low fabrication cost. Capacitive sensing scheme employing a deformable triangular PDMS sensing membrane is chosen due to its high sensitivity and zero DC power dissipation. Trade-offs among different sensor array designs are investigated to achieve an optimal design, which consists of a $1\times 5$ sensor array occupying an area of 10 mm $\times10$ mm. Each sensor in the array achieves a nominal capacitance value and sensitivity of approximately 1 pF and 30 fF/mmHg, respectively. Fabricated sensor array can be comfortably attached to an individual’s temporal region and ankle area to monitor real-time blood pressure (BP) pulse waveform with high fidelity, from which heart rate and heart rate variability information can be accurately obtained. In addition, the prototype sensor array demonstrates its capability of detecting atrial fibrillation (AFib) from BP pulse waveform measured from an AFib patient. [2020-0179]

中文翻译：

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用于低成本可穿戴人体健康监测的纸质柔性触觉传感器阵列

本文介绍了一种用于人体健康监测应用的纸质、低成本、易于使用、舒适且可穿戴的触觉传感器阵列的设计、制造和表征结果。采用纸基板和喷涂金属电极和迹线以实现低制造成本。由于其高灵敏度和零 DC 功耗，选择采用可变形三角形 PDMS 传感膜的电容传感方案。研究了不同传感器阵列设计之间的权衡以实现最佳设计，其中包括 $1\乘以 5$ 传感器阵列占地 10 mm $\times10$ 毫米。阵列中的每个传感器的标称电容值和灵敏度分别约为 1 pF 和 30 fF/mmHg。制造的传感器阵列可以舒适地附着在个人的颞区和脚踝区域，以高保真实时监测血压 (BP) 脉搏波形，从中可以准确地获取心率和心率变异性信息。此外，原型传感器阵列展示了其从 AFib 患者测量的 BP 脉搏波形检测心房颤动 (AFib) 的能力。[2020-0179]