光谱学与光谱分析 |
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Study on Non-Destructive Testing of Guqin Interior Structure Based on Computed Tomography |
ZHAO De-da1, 2, LIU Xing-e1, YANG Shu-min1*, YU Shen2, TIAN Gen-lin1, MA Jian-feng1, WANG Qing-ping1 |
1. Key Laboratory of Bamboo and Rattan Science & Technology, International Center for Bamboo and Rattan, Beijing 100102, China 2. Materials Science and Engineering College, Northeast Forestry University, Harbin 150040, China |
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Abstract The wood property and production process affect quality of Guqin. At the same time, Guqin shape with cavity layout relations to the improvement of Guqin technology and inheritance, so it’s very important to get the internal cavity characteristics and parameters on the condition of non-destructive the structure of Guqin.The image of interior structure in Guqin was investigated by overall scanning based on non-destructive testing technology of computed tomography, which texture of faceplate, connection method betweenfaceplate and soleplate and interior defects were studied. The three-dimensional reconstruction of Guqin cavity was achieved through Mimics software of surface rendering method and put the two-dimensional CT tomography images convert into three-dimensional, which more complete show interior structural form in Guqin, and finally the parameter of cavity dimensions was obtained.Experimental research shows that there is significant difference in Guqin interior structure between Zhong-ni and Luo-xia type, in whichthe fluctuationof the interior surfacein Zhong-ni type’sis larger than that in Luo-xia type; the interior volume of Zhong-ni typeis less than that of Luo-xia type, especially in Guqin neck.The accurate internal information of Guqin obtained through the computed tomography (CT) technology will provide technical support for the Guqin manufacture craft and the quality examination, as well as provide the reference in the aspect of non-destructive testing for other traditional precious internal structure research.
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Received: 2014-09-22
Accepted: 2014-12-18
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Corresponding Authors:
YANG Shu-min
E-mail: shangke620@hotmail.com
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