Electrochemical Dual Transducer for Fluidic Self-Sensing Actuation
Electrochemical Dual Transducer for Fluidic Self-Sensing Actuation
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DOI：
10.1021/acsami.1c21076
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发表时间：
2022-01-07
影响因子：
9.5
通讯作者：
Maeda, Shingo
中科院分区：
文献类型：
--
作者：
Kuwajima, Yu;Seki, Yumeta;Maeda, Shingo
基于化学反应的电化学双传感器（ECDT）是一种用于自感知驱动的新型流体机器。最近，传感器的结合增强了软机器人与泵或压缩机等流体机械的多功能性。然而，传统的流体系统具有重量、噪音、膨胀和复杂性等局限性。在我们之前的研究中，我们为软体机器人采用了体积小、重量轻、安静的电流体动力泵。在本文中，我们通过探索电流体动力（EHD）泵感测工作流体流量的可能性，提出了一种新的 ECDT。 ECDT 中的电流与流入速度的 1/3 成比例。我们还阐明了其机理、数学模型、可检测流量范围、灵敏度因子、弛豫时间、响应速度和泵送特性。 ECDT的优点是体积小、重量轻、制造工艺简单、传感范围可扩展、灵敏度高。我们还演示了由 ECDT 驱动的吸盘，它可以检测、固定和释放物体。我们预计双向 ECDT 将实现小型、多功能且简单的流体系统。
An electrochemical dual transducer (ECDT) based on a chemical reaction is a new fluidic machine for self-sensing actuation. Recently, incorporating sensors has enhanced the multifunctionality of soft robots with fluidic machines such as pumps or compressors. However, conventional fluidic systems have limitations such as heavy weight, noise, bloat, and complexity. In our previous research, we adopted small-sized, lightweight, and quiet electrohydrodynamic pumps for soft robots. In this paper, we propose a new ECDT by exploring the possibility of an electrohydrodynamic (EHD) pump to sense the flow of the working fluid. The current in the ECDT is proportional to 1/3 of the inflowing velocity. We also clarify its mechanism, mathematical model, range of detectable flow rate, sensitivity factor, relaxation time, response speed, and pumping characteristics. The advantages of the ECDT are their small size, light weight, simple fabrication process, extensibility of the sensing range, and sensitivity. We also demonstrate a suction cup driven by the ECDT, which can detect, hold, and release objects. We expect a bidirectional ECDT will realize a small, multifunctional, and straightforward fluidic system.