Smart Structures and Systems

  • 제8권1호
  • /
  • Pages.139-155
  • /
  • 2011
  • /
  • 1738-1584(pISSN)
  • /
  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A wireless impedance analyzer for automated tomographic mapping of a nanoengineered sensing skin

  • Pyo, Sukhoon (Dept. of Civil & Environmental Engineering, University of Michigan) ;
  • Loh, Kenneth J. (Dept. of Civil & Environmental Engineering, University of California) ;
  • Hou, Tsung-Chin (Dept. of Civil Engineering, National Cheng Kung University(NCKU)) ;
  • Jarva, Erik (Dept. of Electrical Engineering & Computer Science, University of Michigan) ;
  • Lynch, Jerome P. (Dept. of Civil & Environmental Engineering, University of Michigan)
  • 투고 : 2010.09.01
  • 심사 : 2010.11.28
  • 발행 : 2011.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Polymeric thin-film assemblies whose bulk electrical conductivity and mechanical performance have been enhanced by single-walled carbon nanotubes are proposed for measuring strain and corrosion activity in metallic structural systems. Similar to the dermatological system found in animals, the proposed self-sensing thin-film assembly supports spatial strain and pH sensing via localized changes in electrical conductivity. Specifically, electrical impedance tomography (EIT) is used to create detailed mappings of film conductivity over its complete surface area using electrical measurements taken at the film boundary. While EIT is a powerful means of mapping the sensing skin's spatial response, it requires a data acquisition system capable of taking electrical impedance measurements on a large number of electrodes. A low-cost wireless impedance analyzer is proposed to fully automate EIT data acquisition. The key attribute of the device is a flexible sinusoidal waveform generator capable of generating regulated current signals with frequencies from near-DC to 20 MHz. Furthermore, a multiplexed sensing interface offers 32 addressable channels from which voltage measurements can be made. A wireless interface is included to eliminate the cumbersome wiring often required for data acquisition in a structure. The functionality of the wireless impedance analyzer is illustrated on an experimental setup with the system used for automated acquisition of electrical impedance measurements taken on the boundary of a bio-inspired sensing skin recently proposed for structural health monitoring.

키워드

참고문헌

  1. AASHTO. (2008), "Bridging the gap: restoring and rebuilding the nation's bridges", American Association of State Highway and Transportation Officials, Washington D.C.
  2. Ahmad, S. (2003), "Reinforcement corrosion in concrete structures, its monitoring and service life prediction - a review", Cement Concrete Comp., 25(4-5), 459-471. https://doi.org/10.1016/S0958-9465(02)00086-0
  3. Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2008), Molecular Biology of the Cell, Garland Science, Taylor & Francis Group, New York, NY.
  4. ASCE. (2009), "Report card for america's infrastructure", American Society of Civil Engineers, Reston, VA.
  5. Decher, G. and Schlenoff, J.B. (2003), "Multilayer thin films", Wiley-VCH, Weinheim, Germany.
  6. Dharap, P., Li, Z., Nagarajaiah, S. and Barrera, E.V. (2004), "Nanotube film based on single-wall carbon nanotubes for strain sensing", Nanotechnology, 15(3), 379-382. https://doi.org/10.1088/0957-4484/15/3/026
  7. Hess, P.E. "Structural health monitoring for high-speed naval ships", Proceedings of the 6th International Workshop on Structural Health Monitoring, Stanford, CA, 3-15.
  8. Holder, D.S. (2005), Electrical Impedance Tomography - Methods, History and Applications, Institue of Physics Publishing, Bristol, UK.
  9. Hou, T.C., Loh, K.J. and Lynch, J.P. (2007), "Spatial conductivity mapping of carbon nanotube composite thin films by electrical impedance tomography for sensing applications", Nanotechnology, 18(31), 315501. https://doi.org/10.1088/0957-4484/18/31/315501
  10. Iijima, S. (1991), "Helical microtubules of graphitic carbon", Nature, 354(6348), 56-58. https://doi.org/10.1038/354056a0
  11. Loh, K.J. and Chang, D. (2010), "Zinc oxide nanoparticle-polymeric thin films for dynamic strain sensing", J. Mater. Sci., Online First, 1-10.
  12. Loh, K.J., Hou, T.C., Lynch, J.P. and Kotov, N.A. (2009a), "Carbon nanotube sensing skins for spatial strain and impact damage identification", J. Nondestruct. Eval., 28(1), 9-25. https://doi.org/10.1007/s10921-009-0043-y
  13. Loh, K.J., Kim, J., Lynch, J.P., Kam, N.W.S. and Kotov, N.A. (2007), "Multifunctional layer-by-layer carbon nanotube-polyelectrolyte thin films for strain and corrosion sensing", Smart Mater. Struct., 16(2), 429-438. https://doi.org/10.1088/0964-1726/16/2/022
  14. Loh, K.J., Lynch, J.P., Shim, B.S. and Kotov, N. (2008), "Tailoring piezoresistive sensitivity of multilayer carbon nanotube composite strain sensors", J. Intel. Mat. Syst. Struct., 19(7), 747-764. https://doi.org/10.1177/1045389X07079872
  15. Loh, K.J., Thouless, M.D. and Lynch, J.P. (2000b), "Enhancing the mechanical and fracture properties of nanocomposites using carbon nanotubes", Proceedings of the12th International Conference on Fracture, Ottawa, Canada.
  16. Mamedov, A.A., Kotov, N.A., Prato, M., Guldi, D., Wicksted, J. and Hirsch, A. (2002), "Molecular design of strong SWNT/polyelectrolyte multilayers composites", Nat. Mater., 1(3), 190-194. https://doi.org/10.1038/nmat747
  17. Mascarenas, D.L., Todd, M.D., Park, G. and Farrar, C.R. (2007), "Development of an impedance-based wireless sensor node for structural health monitoring", Smart Mater. Struct., 16(6), 2137-2145. https://doi.org/10.1088/0964-1726/16/6/016
  18. Melloy, B.J., Harris, J.M. and Gramopadhye, A.K. (2000), "Predicting the accuracy of visual search performance in the structural inspection of aircraft", Int. J. Ind. Ergonom., 26(2), 277-283. https://doi.org/10.1016/S0169-8141(99)00071-2
  19. Moore, M., Phares, B., Graybeal, B., Rolander, D. and Washer, G. (2001), "Reliability of visual inspection for highway bridges", FHWA-RD-01-020, Federal Highway Administration, Washington D.C.
  20. Nagayama, K. (1997), "Self-assembly: naturés way to do it.", Royal Institution Discourses Series, Vega Science Trust, London, England.
  21. Park, G., Sohn, H., Farrar, C.R. and Inman, D.J. (2003), "Overview of piezoelectric impedance-based health monitoring and path forward", Shock Vib., 35(6), 451-463. https://doi.org/10.1177/05831024030356001
  22. Park, S., Park, S.K., Shin, H.H. and Yun, C.B. (2009), "Wireless sensor self-diagnosis for piezoelectric actuating/ sensing networks", Proceedings of the SPIE - The International Society for Optical Engineering, San Diego, CA, 72920B.
  23. Park, S., Yun, C.B., Roh, Y. and Lee, J.J. (2006), "PZT-based active damage detection techniques for steel bridge components", Smart Mater. Struct., 15(4), 957-966. https://doi.org/10.1088/0964-1726/15/4/009
  24. Peairs, D.M., Park, G. and Inman, D.J. (2004), "Improving accessibility of the impedance-based structural health monitoring method", J. Intel. Mat. Syst. Struct., 15(2), 129-139. https://doi.org/10.1177/1045389X04039914
  25. Rolander, D.D., Phares, B.M., Graybeal, B.A., Moore, M.E. and Washer, G.A. (2001), "Highway bridge inspection: state-of-the-practice survey", Transport. Res. Record, 1749(1), 73-81 https://doi.org/10.3141/1749-12
  26. Sohn, H. and Kim, S.B. (2010), "Development of dual PZT transducers for reference-free crack detection in thin plate structures", IEEE T. Ultrason. Ferr., 57(1), 229-240. https://doi.org/10.1109/TUFFC.2010.1401
  27. Wilkinson, J.D. and Shaw, S. (1998), Dermatology, Churchill Livingston, Edinburgh, UK.
  28. Yonemoto, N. and Shida, K. (1998), "Multi-functional sensing for high-sensitivity detection of initial state of iron rust", Proceedings of the IEEE Instrumentation and Measurement Technology Conference, St. Paul, MN, 1145-1148.

피인용 문헌

  1. Sensing sheets: Optimal arrangement of dense array of sensors for an improved probability of damage detection vol.14, pp.5, 2015, https://doi.org/10.1177/1475921715599049
  2. A bio-inspired asynchronous skin system for crack detection applications vol.23, pp.5, 2014, https://doi.org/10.1088/0964-1726/23/5/055020
  3. Recent Advances in Skin-Inspired Sensors Enabled by Nanotechnology vol.64, pp.7, 2012, https://doi.org/10.1007/s11837-012-0358-5
  4. Sensing sheet: the sensitivity of thin-film full-bridge strain sensors for crack detection and characterization vol.25, pp.7, 2014, https://doi.org/10.1088/0957-0233/25/7/075602
  5. Enhanced imaging of piezoresistive nanocomposites through the incorporation of nonlocal conductivity changes in electrical impedance tomography 2018, https://doi.org/10.1177/1045389X17754269
  6. Crack detection and characterization techniques-An overview vol.21, pp.12, 2014, https://doi.org/10.1002/stc.1655
  7. Detection of spatially distributed damage in fiber-reinforced polymer composites vol.12, pp.3, 2013, https://doi.org/10.1177/1475921713479642
  8. Spatial Sensing Using Electrical Impedance Tomography vol.13, pp.6, 2013, https://doi.org/10.1109/JSEN.2013.2253456
  9. Strain Transfer for Optimal Performance of Sensing Sheet vol.18, pp.6, 2018, https://doi.org/10.3390/s18061907