近日，瑞士洛桑聯(lián)邦理工學(xué)院的Herbert Shea課題組成功研制了用于可穿戴流體系統(tǒng)的纖維泵。相關(guān)研究成果已于2023年3月31日在國際權(quán)威學(xué)術(shù)期刊《科學(xué)》上發(fā)表。
該研究團隊開發(fā)了一種可伸縮纖維形式的流體泵，能夠?qū)毫υ粗苯蛹傻郊徔椘分校瑢崿F(xiàn)了無線可穿戴的流體控制。這種泵由連續(xù)螺旋電極嵌入薄彈性管道壁內(nèi)組成，通過電荷注入電流電動力學(xué)原理靜音下產(chǎn)生壓力。每米纖維可產(chǎn)生100千帕的壓力，流量接近55毫升/分鐘，相當(dāng)于15瓦/千克的功率密度。此外，這種泵的設(shè)計自由度相當(dāng)大，可以實現(xiàn)可穿戴觸覺、機械活性織物和溫調(diào)紡織品等應(yīng)用。
【資料圖】
據(jù)介紹，將加壓流體電路融入紡織品中可以在便捷的可穿戴形式中實現(xiàn)肌肉支撐、溫度調(diào)節(jié)和觸覺反饋。然而，常規(guī)的剛性泵由于其產(chǎn)生的噪音和振動而不適用于大多數(shù)可穿戴設(shè)備。
附：英文原文
Title: Fiber pumps for wearable fluidic systems
Author: Michael Smith, Vito Cacucciolo, Herbert Shea
Issue&Volume: 2023-03-31
Abstract: Incorporating pressurized fluidic circuits into textiles can enable muscular support, thermoregulation, and haptic feedback in a convenient wearable form factor. However, conventional rigid pumps, with their associated noise and vibration, are unsuitable for most wearables. We report fluidic pumps in the form of stretchable fibers. This allows pressure sources to be integrated directly into textiles, enabling untethered wearable fluidics. Our pumps consist of continuous helical electrodes embedded within the walls of thin elastomer tubing and generate pressure silently through charge-injection electrohydrodynamics. Each meter of fiber generates 100 kilopascals of pressure, and flow rates approaching 55 milliliters per minute are possible, which is equivalent to a power density of 15 watts per kilogram. The benefits in design freedom are considerable, which we illustrate with demonstrations of wearable haptics, mechanically active fabrics, and thermoregulatory textiles.
DOI: ade8654
Source: https://www.science.org/doi/10.1126/science.ade8654
來源：科學(xué)網(wǎng) 小柯機器人
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