Flexible pressure sensors have a variety of applications in the field of wearable electronics. Flexible capacitive pressure sensors have attracted attention for stability, resistance to temperature disturbances, and low energy consumption. However, the sensitivity that the sensor maintains over a wide range needs to be improved. In this article, a wearable capacitive pressure sensor with a hemispherical porous polydimethylsiloxane (PDMS)/carbon nanotube (CNT) electrode was developed. The sensitivity of the hemispherical porous PDMS/CNTs (HSP-PC) sensor can maintain 0.379 kPa^–1 in the range of 0–10 kPa, 0.087 kPa^–1 in the range of 10–100 kPa, and 0.034 kPa^–1 in the range of 100–400 kPa. The sensor proved to be effective in monitoring human physiological signals, such as pulse wave and joint movement, and was also able to manipulate mechanical claw movements through human motions. Sensor component materials such as conductive Ag fabric and nonwoven fabric can be easily sewn onto clothing, showing potential applications in wearable physiological monitoring and human–machine interaction scenarios.

中文翻译：

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具有半球形多孔电极的高灵敏度可穿戴电容式压力传感器

柔性压力传感器在可穿戴电子领域有多种应用。柔性电容式压力传感器因其稳定性、抗温度干扰性和低能耗而引起人们的关注。然而，传感器在大范围内保持的灵敏度有待提高。在本文中，开发了一种具有半球形多孔聚二甲基硅氧烷（PDMS）/碳纳米管（CNT）电极的可穿戴电容式压力传感器。半球形多孔PDMS/CNTs（HSP-PC）传感器的灵敏度在0~10 kPa范围内保持0.379 kPa ^–1 ，在10~ 100 kPa范围内保持0.087 kPa ^–1 ，在10~100 kPa范围内保持0.034 kPa ^–1。范围为 100–400 kPa。该传感器被证明可以有效监测人体生理信号，例如脉搏波和关节运动，并且还能够通过人体运动来操纵机械爪的运动。导电银织物和无纺布等传感器组件材料可以轻松缝制到衣服上，在可穿戴生理监测和人机交互场景中显示出潜在的应用前景。