Simulation analysis and parameters determination of electrorheological valve for Braille display

doi:10.11835/j.issn.1000-582X.2022.03.008

Home > Archive>Volume 45, Issue 3, 2022 >68-72. DOI:10.11835/j.issn.1000-582X.2022.03.008

Simulation analysis and parameters determination of electrorheological valve for Braille display
DOI:
                        10.11835/j.issn.1000-582X.2022.03.008
                    
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                        HUANG JingyuHUANG Jingyu
Nano-micro Fabrication Technology Department, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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XU LuningXU Luning
Nano-micro Fabrication Technology Department, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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HAN LiHAN Li
Nano-micro Fabrication Technology Department, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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SHEN RongSHEN Rong
Beijing National Laboratory for Condensed Matter Physics, Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China;University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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LU KunquanLU Kunquan
Beijing National Laboratory for Condensed Matter Physics, Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China;University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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Abstract:

China has the largest visually impaired group around the world. There is a lack of an e-reader for blind people to learn independently. Using electrorheological(ER) fluid micro valves to manipulate Braille dots matrix has the merit of easy control with low energy consumption. The ER fluid micro valve is an important part of the Braille display. The correct display of Braille depends on the stability of the ER valve. Different valve parameters make different operating points and affect the stability of the valve. The refresh rate of the braille dots depends on the output flow of each valve under the same given pressure, and different valve gaps make different valve voltages, which affects the refresh rate of the braille dots. In this paper, based on the established mathematical model of the ER valve, the influence of the structure parameters of the ER micro valves on the stability of the valve and the transmission flow is analyzed, which provides technical support for the design of the micro valve for such applications.

Key words:electrorheological fluids micro valves;channel structure;Braille display;mathematical model;simulation analysis

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黄靖宇,徐鲁宁,韩立,沈容,陆坤权.用于盲文显示的电流变阀门关键参数分析[J].重庆大学学报,2022,45(3):68~72

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Received:September 16,2021
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Online: April 01,2022
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