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基板材料和传感器几何变化对化沉积模型-印刷应变传感器性能的影响
Sevittrangampatty Kandasamy Dhinesh1, Senthil Kumar Kallippatti Lakshmanan1, Nagarajan Pitchandi1
1Department of Mechatronics, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
3D printing and additive manufacturing
|September 11, 2025
概括
研究人员通过测试各种热塑性聚氨 (TPU) 基板和几何设计,优化了3D打印的应变传感器. 导电性多乳酸 (CPLA) -eTPU 95A在三角形配置中表现出卓越的性能,增强度因子和减少歇斯底里误差.
科学领域:
- 材料科学 材料科学 材料科学
- 添加剂制造 添加剂制造 添加剂制造
- 传感器技术 传感器技术
背景情况:
- 3D打印提供了具有成本效益和可定制的电子产品和传感器制造.
- 化沉积模型可以灵活地整合各种基板和导电材料,用于3D打印的张力计.
- 传感器的性能非常依赖于明智选择导电材料和基板材料.
研究的目的:
- 为了研究基板材料和传感器几何变化对基于导电性多乳酸 (CPLA) 的3D打印应变传感器性能的影响.
- 通过分析不同的热塑性聚氨 (TPU) 基板和几何配置来评估灵敏度,精度,稳定性和工作范围.
- 确定最佳的材料和设计参数,以提高应变传感能力.
主要方法:
- 作为基板,使用了四种热塑性聚氨 (TPU) 变种 (TPE 70A,eLastic TPE 83A,eFlex TPU 87A,eTPU 95A).
- 使用CPLA作为导电材料制造的应变传感器具有五种不同的配置:线性,蛇形,方形,三角形和梯形.
- 传感器性能指标包括电阻变化比率,度因子,应变极限和歇斯底里斯误差在循环负荷下测量.
主要成果:
- 在所有测试的变体中,三角形配置的CPLA-eTPU 95A传感器表现出最高的测量系数和最低的歇斯底里误差.
- 与CPLA-eFlex TPU 87A传感器相比,最佳配置显示,测量因子增加了18.63%,歇斯底里错误减少了18.37%.
- 将传感层之间的垂直距离调整为0.1毫米,显著增加了CPLA-eTPU 95A传感器的工作范围的54%.
结论:
- 由于其高弹性模量和形状恢复,eTPU 95A基板显著提高了基于CPLA的应变传感器的性能.
- 三角形几何配置与eTPU 95A基板相结合,提供了最佳的度因子和歇斯底里误差.
- 优化层间距离是扩大3D打印应变传感器工作范围的关键因素.
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