All-printed strain sensors: Building blocks of the aircraft structural health monitoring system
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- 作者：Yuzheng Zhang ; Dr.a ; b ; yzheng@nextgenaero.com ; yuzhengz@usc.edu (Research Engineer NextGen Aeronautics)Author Vitae ; Nickolas Andersonc (Research Associate University of Illinois at Chicago)Author Vitae ; Scott Blanda (Lead Engineer NextGen Aeronautics)Author Vitae ; Steven Nutt ; Prof.b (M.C. Gill Professor ; Director M.C. Gill Composites Center)Author Vitae ; Gregory Jursich ; Dr.cAuthor Vitae ; Shiv Joshi ; Dr.a (CTO NextGen Aeronautics)Author Vitae
- 关键词：Strain sensor ; Structural health monitoring ; Screen printing ; Inkjet printing
- 刊名：Sensors and Actuators A: Physical
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：253
- 期：Complete
- 页码：165-172
- 全文大小：2615 K
- 卷排序：253
文摘
Characteristics of printed strain sensors (gage factor, ink microstructure, temperature sensitivity, transverse sensitivity and fatigue response, etc.) are explored and compared with standard foil gages in this article. The printed sensors have significantly higher gage factors than standard foil gages and exhibited excellent linearity up to 0.4% strain with fatigue resistance up to 105 strain cycles. However, in order to employ these printed strain sensors in reliable structural health monitoring systems, their temperature and transverse-strain sensitivities need to be improved. In addition, printing consistency with defect-free deposition and line resolution improvements will be further investigated in order to achieve reliable low-cost all-printed wide-area structural state sensing systems for practical applications. To realize a fully integrated strain mapping system, future efforts will also be dedicated to multiplexing electronics on flexible substrates as well as integration of a printed power source and conventional electronic integrated circuitry.