吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 498-503.doi: 10.13229/j.cnki.jdxbgxb201702021

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基于无阀压电微泵控制的微流控液体变色眼镜

张敏, 李松晶, 蔡申   

  1. 哈尔滨工业大学 机电工程学院,哈尔滨 150001
  • 收稿日期:2016-04-02 出版日期:2017-03-20 发布日期:2017-03-20
  • 通讯作者: 李松晶(1970-),女,教授,博士生导师.研究方向:液压元件,微流体技术.E-mail:lisongjing@hit.edu.cn
  • 作者简介:张敏(1981-),女,博士研究生.研究方向:液压元件,微流体技术.E-mail:zhangmin_0124@163.com
  • 基金资助:
    国家自然科学基金项目(51175101).

Microfluidic liquid color-changing glasses controlled by valveless piezoelectric micro-pump

ZHANG Min, LI Song-jing, CAI Shen   

  1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2016-04-02 Online:2017-03-20 Published:2017-03-20

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摘要： 为了更好地利用变色镜保护人眼不受强光的伤害,提出了一种微流控液体变色眼镜。以透光性良好的高分子聚合物PDMS(polydimethylsiloxane)为材料,采用软刻蚀技术代替传统的机械加工,制作了具有微流道结构的镜片变色层。通过对封接面的表面改性处理实现了PDMS变色层和基底镜片(玻璃/光学树脂)之间的不可逆封接,构成了具有闭合微流道的液体变色镜片。设计并制作了一种无阀压电微泵控制器用以控制镜片微流道内有色液体的循环流动,实现镜片的变色功能。实验测试了微泵在不同驱动电压和驱动频率下变色眼镜的响应特性。测试结果表明:与传统的固体感光变色镜相比,无阀压电微泵控制的微流控液体变色眼镜具有较快的响应速度,较高的可控性和良好的可逆性。

关键词: 流体传动与控制, 微流控, 液体变色眼镜, 无阀压电微泵, 软刻蚀

Abstract: In order to comfort and protect human eyes in an environment with strong lights using color-changing glasses, a microfluidic liquid color-changing glasses is presented. Instead of traditional mechanical machining, soft lithography technology is applied for the fabrication of the color-changing layer made of transparent polymer polydimethylsiloxane (PDMS). Surface modification treatment is used for realizing irreversibly bonding of PDMS color-changing layer with substrate lens (glass/optical resin) to form liquid color-changing lens with closed microfluidic channels. A valveless piezoelectric micro-pump is designed and micromachined, which is used to control the liquid circulation in the channel on the lens to realize color-changing function of the glasses. The color-changing response times of the glasses under different voltage amplitudes and frequencies are tested by experiments. Compared with conventional solid photochromic glasses, the microfluidic liquid color-changing glasses controlled by valveless piezoelectric micro-pump show faster response, higher controllability and better reversibility.

Key words: turn and control of fluid, microfluidic, liquid colour-changing glasses, valveless piezoelectric micro-pump, soft lithography

中图分类号: 

  • TH137
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