A New Theoretical Model of a Carbon Nanotube Strain Sensor
QIU Wei1, KANG Yi-Lan1, LEI Zhen-Kun2, QIN Qing-Hua3, LI Qiu1
1Department of Mechanics, Tianjin University, Tianjin 3000722Department of Engineering Mechanics, Dalian University of Technology, Dalian 1160243Department of Engineering, Australian National University, Canberra ACT 2601, Australia
A New Theoretical Model of a Carbon Nanotube Strain Sensor
QIU Wei1, KANG Yi-Lan1, LEI Zhen-Kun2, QIN Qing-Hua3, LI Qiu1
1Department of Mechanics, Tianjin University, Tianjin 3000722Department of Engineering Mechanics, Dalian University of Technology, Dalian 1160243Department of Engineering, Australian National University, Canberra ACT 2601, Australia
摘要Carbon nanotubes (CNTs) are potential strain sensors due to their excellent mechanical and spectral properties. A new theoretical model of a CNT strain sensor is obtained by applying the polarized Raman properties of CNTs, which calculates the synthetic contributions of Raman spectra from the CNTs in random directions. By using this theoretical model, the analytic relationship between planar strain components and the Raman shift increment of uniformly dispersed CNTs is obtained, which is applicable for accurately characterizing the strain in random directions on the surface of a measured microsystem.
Abstract：Carbon nanotubes (CNTs) are potential strain sensors due to their excellent mechanical and spectral properties. A new theoretical model of a CNT strain sensor is obtained by applying the polarized Raman properties of CNTs, which calculates the synthetic contributions of Raman spectra from the CNTs in random directions. By using this theoretical model, the analytic relationship between planar strain components and the Raman shift increment of uniformly dispersed CNTs is obtained, which is applicable for accurately characterizing the strain in random directions on the surface of a measured microsystem.
QIU Wei;KANG Yi-Lan;LEI Zhen-Kun;QIN Qing-Hua;LI Qiu. A New Theoretical Model of a Carbon Nanotube Strain Sensor[J]. 中国物理快报, 2009, 26(8): 80701-080701.
QIU Wei, KANG Yi-Lan, LEI Zhen-Kun, QIN Qing-Hua, LI Qiu. A New Theoretical Model of a Carbon Nanotube Strain Sensor. Chin. Phys. Lett., 2009, 26(8): 80701-080701.
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