iSens: A Fiber-Based, Highly Permeable and Imperceptible Sensor Design,Advanced Materials

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iSens: A Fiber-Based, Highly Permeable and Imperceptible Sensor Design
Advanced Materials ( IF 27.4 ) Pub Date : 2021-08-02 , DOI: 10.1002/adma.202102736
Thomas Stockinger _{1,

2,

3} , Daniela Wirthl _{1,

2,

3} , Guoyong Mao _{1,

2} , Michael Drack _{1,

2} , Roland Pruckner _{1,

2} , Stepan Demchyshyn _{1,

2} , Melanie Steiner ₄ , Florian Egger _{1,

2} , Uwe Müller ₄ , Reinhard Schwödiauer _{1,

2} , Siegfried Bauer ₁ , Nikita Arnold _{1,

2} , Martin Kaltenbrunner _{1,

2}

Affiliation

Embedded sensors are key to optimizing processes and products; they collect data that allow time, energy, and materials to be saved, thereby reducing costs. After production, they remain in place and are used to monitor the long-term structural health of buildings or aircraft. Fueled by climate change, sustainable construction materials such as wood and fiber composites are gaining importance. Current sensors are not optimized for use with these materials and often act as defects that cause catastrophic failures. Here, flexible, highly permeable, and imperceptible sensors (iSens) are introduced that integrate seamlessly into a component. Their porous substrates are readily infused with adhesives and withstand harsh conditions. In situ resistive temperature measurements and capacitive sensing allows monitoring of adhesives curing as used in wooden structures and fiber composites. The devices also act as heating elements to reduce the hardening time of the glue. Results are analyzed using numerical simulations and theoretical analysis. The suggested iSens technology is widely applicable and represents a step towards realizing the Internet of Things for construction materials.

中文翻译：

iSens：基于纤维的高渗透性和不易察觉的传感器设计

嵌入式传感器是优化流程和产品的关键；他们收集的数据可以节省时间、能源和材料，从而降低成本。生产后，它们会留在原地，用于监测建筑物或飞机的长期结构健康状况。在气候变化的推动下，木材和纤维复合材料等可持续建筑材料变得越来越重要。电流传感器并未针对与这些材料一起使用而进行优化，并且经常充当导致灾难性故障的缺陷。在这里，引入了可无缝集成到组件中的灵活、高渗透性和不易察觉的传感器 (iSens)。它们的多孔基材很容易注入粘合剂并承受恶劣的条件。原位电阻温度测量和电容传感允许监测用于木结构和纤维复合材料的粘合剂固化。这些装置还充当加热元件以减少胶水的硬化时间。使用数值模拟和理论分析对结果进行分析。建议的 iSens 技术具有广泛的适用性，代表着实现建筑材料物联网的一步。

更新日期：2021-09-14

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