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电子学报  2013 

用于电子皮肤的界面应力传感器的研究

DOI: 10.3969/j.issn.0372-2112.2013.02.021, PP. 340-345

Keywords: 平板电容,界面应力传感器,电子皮肤

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Abstract:

截肢表面和假肢接口之间的应力分布以及人体足底应力分布对医学研究有着极为重要的意义.为了测量截肢和足底界面应力,本文提出了用平板电容和PDMS超弹塑性材料制作用于电子皮肤的界面应力传感器的方法.对该传感器的测量范围、器件大小、材料选择、机械部分设计、电极耦合和器件制作等问题提出了解决方法.最后,制作出了能够测量0~220kPa正压力和0~70kPa剪切力的用于电子皮肤的界面应力传感器.从实验得到传感器在不同正压力和剪切力下输出电容的实验数据,利用实验数据给出了传感器对正压力和剪切力的响应函数和响应曲线.

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