可穿戴的极低成本压阻式传感器A LOW-COST WEARABLE SENSOR WITH A PIEZORESISTIVE MECHANISM
尹拓,王路标,朱泉水,张巍巍
摘要(Abstract)：
本文基于纸上手绘的石墨电阻设计制作了可穿戴的手指姿态传感器。用2B铅笔在绘图纸上绘制石墨电阻，受温敏电阻特性的启发，将电阻设计为波浪线形状以实现环境参量传感的增敏；用惠斯通电桥将环境敏感电阻值的变化转换为电压输出，数字电压表头直接读值；用3D打印的手部可穿戴组合式机械结构安装固定纸基石墨电阻传感器。该可穿戴传感器的角分辨率为2.3°,可以通过手指屈伸的观测直观有效地演示影响电阻值的环境因素，既能用于物理的创新性实验教学，又有健康与运动监测的实用价值。
关键词(KeyWords)： 手绘石墨电阻;环境参量;非平衡电桥;可穿戴传感器
基金项目(Foundation): 国家自然科学基金(#62265012);; 江西省主要学科学术与技术带头人培养计划——领军人才项目(20204BCJL22041)
作者(Author): 尹拓,王路标,朱泉水,张巍巍
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