中国塑料 ›› 2025, Vol. 39 ›› Issue (6): 36-41.DOI: 10.19491/j.issn.1001-9278.2025.06.008

• 加工与应用 • 上一篇    下一篇

面向胸腹式呼吸检测需求的柔性传感器制备

陈元民1(), 赵梦宇1, 仇思源1, 李亚娇1, 王文昊1, 王昊3, 朱广迎3(), 孙靖尧1,2()   

  1. 1.北京化工大学机电工程学院,北京 100029
    2.有机无机复合材料国家重点实验室,北京 100029
    3.中日友好医院放射肿瘤科,北京 100029
  • 收稿日期:2024-07-13 出版日期:2025-06-26 发布日期:2025-06-20
  • 通讯作者: 朱广迎(1963-),男,博士学位,担任中日友好医院放射肿瘤科主任医师,主要从事肺癌精准放疗和综合治疗, zryyfa@163.com
    孙靖尧(1991-),男,见习教授,主要从事聚合物先进制造等方面的研究,Email:sunjingyao@ mail. buct. edu.cn
    E-mail:965494783@qq.com;zryyfa@163.com;sunjingyao@ mail. buct. edu.cn
  • 作者简介:陈元民(1998-),男,在读硕士研究生,主要从事聚合物材料加工制备工作,965494783@qq.com

Preparation of flexible sensors for requirement of thoracic and abdominal respiration detection

CHEN Yuanmin1(), ZHAO Mengyu1, QIU Siyuan1, LI Yajiao1, WANG Wenhao1, WANG Hao3, ZHU Guangying3(), SUN Jingyao1,2()   

  1. 1.College of Electromechanical Engineering,Beijing University of Chemical Technology,Beijing 100029,China
    2.State Key Laboratory of Organic and Inorganic Composites,Beijing 100029,China
    3.Department of Radiation Oncology,China?Japan Friendship Hospital,Beijing 100029,China
  • Received:2024-07-13 Online:2025-06-26 Published:2025-06-20
  • Contact: ZHU Guangying, SUN Jingyao E-mail:965494783@qq.com;zryyfa@163.com;sunjingyao@ mail. buct. edu.cn

摘要:

基于半导体应变效应的电阻(应变)式传感器的工作原理,采用空间限域强制组装和丝网印刷两种不同方法对中间导电层进行制备。通过对比,选用空间限域强制组装制备的传感器更符合患者在放疗前的呼吸训练。因此,对该传感器施加24 %的极限应变,并对测量结果进行拟合,得到的灵敏度为0.001 5 V/mm,重复性为96.67 %,表明该传感器在0~24 %应变范围内性能稳定;对该传感器进行10 %应变拉伸测试,得到响应时间Tr 137 ms,响应时间较短,符合实时监测需求;并测量了正反行程输出⁃输入曲线,得到该传感器的回程误差δH=1.06 %,表明该传感器在长时间工作下趋于稳定。最后,用该传感器采集了胸围不同的10名个体的呼吸信号,体现了该传感器在临床医学上具有重要作用。

关键词: 柔性传感器, 三明治结构, 空间限域强制组装, 呼吸监测, 可拉伸性

Abstract:

This study employs the operating principle of semiconductor⁃based resistive strain sensors to fabricate an intermediate conductive layer using two distinct methods: spatially⁃confined forced assembly and screen printing. Comparative analysis revealed that the sensor produced via spatially⁃confined forced assembly demonstrated superior suitability for pre⁃radiotherapy breathing training in patients. Under a maximum applied strain of 24 %, the sensor exhibited stable performance, with a fitted sensitivity of K=0.0015 V/mm and a repeatability of 96.67 %. Tensile testing at 10 % strain yielded a rapid response time (Tr≈137 ms), meeting the requirements for real⁃time monitoring. Forward and reverse stroke output⁃input curve measurements further revealed a low return error (δH=1.06 %), demonstrating the working stability of the sensor during prolonged operation. Finally, respiratory signals were successfully collected from ten individuals with varying chest circumferences, highlighting the clinical utility of the sensor in medical diagnostics and patient⁃specific respiratory monitoring.

Key words: flexible sensor, sandwich structure, space?limited domain forced assembly, respiratory monitoring, stretchability

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