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Printed Strain Sensors Based on an Intermittent Conductive Pattern Filled with Resistive Ink Droplets

机译:基于填充电阻墨滴的间歇导电图案的印刷应变传感器

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摘要

In this study, we demonstrate a strain sensor fabricated as a hybrid structure of a conductive intermittent pattern with embedded single droplets of a functional resistive ink. The main feature of our proposed sensor design is that although the intermittent pattern comprises the majority of the entire sensor area, the strain sensitivity depends almost selectively on the resistive droplets. This opens up the possibility for fast and inexpensive evaluation of sensors manufactured from various functional materials. As the use of resistive ink was limited to single droplets deposition, the required ink amount needed to build a sensor can be considerably reduced. This makes the sensors cost-effective and simple for fabrication. In this study, our proposed sensor design was evaluated when a carbon-based ink was used as the resistive material incorporated into an intermittent structure made of silver. The developed strain sensors were tested during bending deformations demonstrating good strain sensitivity (gauge factor: 7.71) and no hysteresis within the investigated strain range.
机译:在这项研究中,我们展示了作为具有功能电阻墨水的嵌入式单滴的导电间歇图案的混合结构的应变传感器。我们所提出的传感器设计的主要特点是,尽管间歇图案包括整个传感器区域的大部分,但是应变灵敏度几乎选择性地在电阻液滴上取决于电阻液滴。这为由各种功能材料制造的传感器的快速和廉价评估提供了开辟了可能性。随着使用电阻墨水的使用限于单滴液滴沉积,可以显着降低构建传感器所需的所需的墨水量。这使得传感器具有成本效益和简单的制造。在本研究中,当使用碳基油墨作为掺入银制成的间歇结构中的电阻材料时,评估我们所提出的传感器设计。在弯曲变形期间测试发育的应变传感器,证明良好的应变灵敏度(仪表因子:7.71),并且在研究的应变范围内没有滞后。

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