用于压力传感的全快速三维制造导电可变形传感器

IF 6.8 Q1 AUTOMATION & CONTROL SYSTEMS Advanced intelligent systems (Weinheim an der Bergstrasse, Germany) Pub Date : 2024-06-27 DOI:10.1002/aisy.202300901
Carlo Massaroni, Loy Vitali, Daniela Lo Presti, Sergio Silvestri, Emiliano Schena
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引用次数: 0

摘要

快速成型制造技术日益彻底改变了当前的物体制造技术。特别是熔融沉积建模(FDM),它能以低成本、高效率的方式制造出具有复杂设计和创新几何形状的结构,从而对生产工艺产生了重大影响。在 FDM 印刷中使用导电长丝为推进完全印刷传感器和电路铺平了道路,尽管这一领域仍处于早期阶段。本文研究了使用导电热塑性聚氨酯制造的双层可变形压力传感器的设计和生产。文章探讨了通过调整打印参数来改变 FDM 打印元件的机械和电气特性的可能性。研究了不同材料填充水平(20%、50% 和 100%)和层间不同接触几何形状(圆顶、金字塔和圆柱)的影响。为确定传感器的特性,还进行了机电测试,压力最高达 22 kPa。三维打印压力传感器在不同填充值下显示出可调的机械和电气灵敏度,其中使用填充率为 100% 的金字塔层时达到的最高值为 -6.3 kPa-1。在循环测试中记录的传感器输出显示出具有广泛灵敏度的可重现响应,为记录静态和周期性压力变化铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Fully Additively 3D Manufactured Conductive Deformable Sensors for Pressure Sensing

Additive manufacturing technologies increasingly revolutionize current production techniques for object manufacturing. Particularly, fused deposition modeling (FDM) strongly impacts production processes by enabling the cost-effective and efficient creation of structures with complex designs and innovative geometries. The use of conductive filaments in FDM printing is paving the way for the advancement of entirely printed sensors and circuits, although this domain is still in its early stages. In this article, the design and production of bilayer deformable pressure sensors fabricated using conductive thermoplastic polyurethane are investigated. The potential to vary the mechanical and electrical characteristics of FDM-printed components by adjusting printing parameters is explored. The influence of different levels of material infill (20%, 50%, and 100%) and different contact geometries between layers (domes, pyramids, and cylinders) is studied. Electromechanical tests are carried out to characterize the sensor, applying pressures up to 22 kPa. The 3D-printed pressure sensors demonstrate tunable mechanical and electrical sensitivities at different infill values, with the highest value of −6.3 kPa−1 achieved by using a pyramid layer at 100% infill. Sensor outputs registered during cyclic tests show reproducible responses with a wide range of sensitivity, paving the way for applicability in recording both static and periodic pressure changes.

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CiteScore
1.30
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审稿时长
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