Detection of delamination in Tibetan wall paintings by using ground penetrating radar

被引：0

作者：

Li Z.-X. ^{[1
,2
,3
,4
]}

Yang T. ^{[1
,2
]}

Wang W.-F. ^{[2
,3
,4
]}

Chen W.-W. ^{[1
]}

机构：

[1] School of Civil Engineering and Mechanics, Lanzhou University

[2] Key Scientific Res. Base of Conservation for Ancient Mural State Administration for Cult. Heritage

[3] Conservation Institute, Dunhuang Academy

[4] Technical and Service Center for Protection of Cultural Relics, Dunhuang Academy

来源：

Dianzi Keji Daxue Xuebao/Journal of the University of Electronic Science and Technology of China | 2010年 / 39卷 / 06期

关键词：

Delamination deterioration; Ground penetrating radar; Nondestructive detection; Resolution; Wall painting conservation;

D O I：

10.3969/j.issn.1001-0548.2010.06.013

中图分类号：

学科分类号：

摘要：

In tradition, the diagnosis of delamination in either grotto wall paintings or palace wall paintings is achieved by identifying the sound when lightly knocking on the wall by hand, such experience is practical in determining the area and degree of delamination, but it depends on subjective sensation, lacking some theoretical principles. Focusing on the propagation of high frequency pulse electromagnetic waves in layered lossy and dispersive medium and after the physical forward modeling experiment, this paper tries to locate delamination in polished wall paintings in Tibet by wall coupling antennas using RAMAC ground penetrating radar. It is shown that the ultra-wide band ground penetrating radar is capable of detecting delamination in vertical resolution of about 5 mm when it is equipped with a transmitting antenna of 1.6 GHz central frequency. It is a quantitative attempt to detect delamination in wall paintings, the research results promote technical improvement for conservation of wall paintings.

引用

页码：864 / 869

页数：5

共 23 条

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