打印的厄迪电流测试传感器:面向结构健康监测应用
Eliott Brun1, Pierre-Jean Cottinet1, Arnaud Pelletier2
1LGEF, INSA-Lyon, EA682, University Lyon, 69621 Villeurbanne, France.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
将传感器直接打印到结构部件上可以确保结构健康监测的可重复测量. 这种创新方法提高了可靠性和安全性,适用于各种非破坏性测试方法.
科学领域:
- 材料科学 材料科学 材料科学
- 工程 工程师 工程师 工程师
- 非破坏性测试是指非破坏性测试.
背景情况:
- 可靠的结构健康监测 (SHM) 需要高度可复制的传感器测量.
- 当前的仪器仪表方法可能受到可重现性和人为错误的限制,特别是在具有挑战性的环境中.
研究的目的:
- 开发和验证一种用于SHM的现场传感器制造的新方法.
- 评估直接在结构部件上使用导电和介电墨水打印传感器的可行性.
主要方法:
- 研究过介电和导电油墨的组合,以获得最佳性能,而杜邦油墨显示出优异的结果.
- 采用分剂器和印技术,在柔性基板上制造平面螺旋线圈传感器.
- 将印刷传感器与具有铜电路的传统柔性印刷电路板 (PCB-flex) 进行比较.
- 成功地将20转螺旋线圈传感器直接打印到3毫米厚的不钢板上.
主要成果:
- 基于导电性墨水的传感器的效率与PCB-flex传感器相提并论.
- 在不钢上打印的传感器表现出良好的灵敏度,与便携式传感器相当.
- 这种印刷方法被证明可以直接应用于固体结构部件.
结论:
- 直接将传感器打印到组件上是一种可行的解决方案,可以在SHM中实现可重复的测量.
- 这种技术最大限度地减少了人为错误,适合于封闭或危险的环境.
- 开发的方法可以适应各种非破坏性测试技术,超出流测试.
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