合肥工业大学物理学院
Published：2025
移动端阅览
[J]. 2025, (7): 46-49.
针对可穿戴医疗设备精确测量微小人体生理信号的需求，以明胶、炭黑为材料，弹性织物为基底，结合浸渍工艺，制备一种基于明胶复合材料的高灵敏柔性裂纹传感器。阐述传感器制备流程，分析测试碳酸氢钠对明胶复合材料的改性原理，优化明胶复合材料配比及制备工艺，对柔性传感器静动态特性进行测试后将其应用于人体腕部桡动脉脉搏波测量。结果表明：基于明胶复合材料的高灵敏柔性裂纹传感器具有高灵敏度(8%应变时GF～12 381)、快速响应时间(78 ms)。将传感器安装于压力检测装置内部，结合脉搏波测量系统，实现对腕部桡动脉脉搏的精确测量，为可穿戴实时脉搏波提取提供了解决方案，对促进柔性可穿戴设备的发展具有重要意义。
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