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Microsphere‐Assisted Robust Epidermal Strain Gauge for Static and Dynamic Gesture Recognition
Small ( IF 13.0 ) Pub Date : 2017-11-02 , DOI: 10.1002/smll.201702108 Zongming Su 1 , Haotian Chen 2 , Yu Song 1 , Xiaoliang Cheng 1 , Xuexian Chen 2 , Hang Guo 2 , Liming Miao 1 , Haixia Zhang 1
Small ( IF 13.0 ) Pub Date : 2017-11-02 , DOI: 10.1002/smll.201702108 Zongming Su 1 , Haotian Chen 2 , Yu Song 1 , Xiaoliang Cheng 1 , Xuexian Chen 2 , Hang Guo 2 , Liming Miao 1 , Haixia Zhang 1
Affiliation
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A novel and robust epidermal strain gauge by using 3D microsphere arrays to immobilize, connect, and protect a multiwalled carbon nanotubes (MWNTs) pathway is presented. During the solvent deposition process, MWNTs sedimentate, self‐assemble, and wrap onto surface of polystyrene (PS) microspheres to construct conductive networks, which further obtain excellent stretchability of 100% by combining with commercially used elastomer. Benefiting from its 3D conductive pathway defined by microspheres, immobilized MWNT (I‐MWNT) network can be directly used in practical occasions without further packaging and is proved by tape tests to be capable of defend mechanical damage effectively from external environment. By parameter optimization, the strain sensor with 3 µm PS spheres obtains stable resistive responses for more than 1000 times, and maintains its gauge factor (GF) of 1.35. This thin‐film conductive membrane built by this effective construction method can be easily attached onto fingers of both robot and human, and is demonstrated in sensitive epidermal strain sensing and recognizing different hand gestures effectively, in static and dynamic modes, respectively.
中文翻译：
微球辅助的坚固表皮应变仪，用于静态和动态手势识别
通过使用3D微球阵列来固定，连接和保护多壁碳纳米管（MWNTs）路径，提出了一种新颖而强大的表皮应变仪。在溶剂沉积过程中，MWNTs沉积，自组装并包裹在聚苯乙烯（PS）微球表面上以构建导电网络，通过与商业上使用的弹性体结合，可进一步获得100％的出色拉伸性。固定的MWNT（I-MWNT）网络得益于微球定义的3D传导路径，无需进一步包装即可直接用于实际场合，并且通过胶带测试证明能够有效抵御外部环境的机械损坏。通过参数优化，具有3 µm PS球的应变传感器可以获得1000倍以上的稳定电阻响应，并保持其规范因子（GF）为1.35。通过这种有效的构造方法构建的这种薄膜导电膜可以轻松地附着在机器人和人的手指上，并分别在静态和动态模式下通过灵敏的表皮应变感测和有效识别不同的手势进行了演示。
更新日期：2017-11-02
中文翻译：
微球辅助的坚固表皮应变仪，用于静态和动态手势识别
通过使用3D微球阵列来固定，连接和保护多壁碳纳米管（MWNTs）路径，提出了一种新颖而强大的表皮应变仪。在溶剂沉积过程中，MWNTs沉积，自组装并包裹在聚苯乙烯（PS）微球表面上以构建导电网络，通过与商业上使用的弹性体结合，可进一步获得100％的出色拉伸性。固定的MWNT（I-MWNT）网络得益于微球定义的3D传导路径，无需进一步包装即可直接用于实际场合，并且通过胶带测试证明能够有效抵御外部环境的机械损坏。通过参数优化，具有3 µm PS球的应变传感器可以获得1000倍以上的稳定电阻响应，并保持其规范因子（GF）为1.35。通过这种有效的构造方法构建的这种薄膜导电膜可以轻松地附着在机器人和人的手指上，并分别在静态和动态模式下通过灵敏的表皮应变感测和有效识别不同的手势进行了演示。
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