Nondestructive analysis method of characteristics of pigments on surfaces of colour paintings of Qin and Han pottery figurines
A non-destructive analysis and pigment technology, applied in image analysis, color/spectral property measurement, image data processing, etc., can solve the problem that the sampling points cannot fully represent the overall situation of the Qin and Han terracotta figurines, and cannot represent the overall situation of the terracotta figurines.
Inactive Publication Date: 2013-03-13
XI AN JIAOTONG UNIV +1
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Problems solved by technology
This is because: 1. Precious pottery figurines generally do not allow damage sampling
2. The sampling points cannot fully represent the overall situation of Qin and Han pottery figurines
3. The samples are completely separated from the pottery figurines as a whole, so any analysis, detection, and evaluation of Qin and Han pottery figurines cannot represent the overall situation of the pottery figurines
Method used
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Embodiment 1
[0059] 1. Take a male figurine holding an umbrella in the Qin and Han Dynasties as the implementation object, take a digital photo of the painted figurines with a digital camera, select 9 measurement points according to factors such as color category, pattern characteristics, paint weathering characteristics, protection and restoration plan, and number them in sequence. QHY01-09, the distribution of measuring points on the digital photo of the specific pottery figurine painting is as follows figure 2 shown.
[0060] 2. After calibrating the colorimeter with a standard white board, perform colorimetric detection on the sample points, measure each sample point 3 times, and calculate the average value;
[0061] As shown in Table 2, the chromaticity value distribution ranges of the three colors of white, red, and brown at the measurement points of the Qin and Han pottery figurines' painted paintings are shown.
[0062] Table 2 The distribution range of chromaticity values at t...
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The invention discloses a nondestructive analysis method of the characteristics of pigments on the surfaces of colour paintings of Qin And Han pottery figurines. The nondestructive analysis method utilizes a nondestructive detection analysis technology, comprises the step of establishing the evaluation analysis (quantitative analysis) of a tolerance ball model on colours, quality statistic analysis (quantitative analysis) of pottery figurine pigments within unit surface area, through surface microscopic character analysis (qualitative analysis) and pigment thickness analysis (quantitative analysis) and is a quantifiable, operable, comparable and nondestructive measurement estimating method. On the basis of nondestructive analysis detection, by means of the nondestructive analysis method, a scientific conclusion is given for the conservation present status of the Qin And Han pottery figurines by dividing areas for the Qin And Han pottery figurines and comprehensively considering multiple factors and selecting multiple measuring points, and therefore the scientific basis is provided for the scientific and technical protection and repair of the Qin And Han pottery figurines; in addition, by means of the nondestructive analysis method, the statistics and the analysis on a large amount of measured data can be carried out, and abundant scientific detection data resources are provided for the building of a pottery figurine pigment database and the long-term conservation, protection, repair, showing and management of the Qin And Han pottery figurines.
Description
technical field [0001] The invention belongs to the technical field of analysis, research and protection of Qin and Han pottery figurines, and in particular relates to a non-destructive analysis method for painted pigment characteristics of Qin and Han pottery figurines. Background technique [0002] Qin and Han pottery figurines experienced huge changes in environmental factors in the underground environment and the environment after excavation. The adsorbed water and adsorbed minerals in the pigment layer have changed. 2 , O 3 , CO 2 , SO 2 The effect of nitrogen oxides and nitrogen oxides changes the color of the terracotta figurines in the pigment layer, and gradually warps, separates, and falls off. During the rescue excavation, migration, and restoration of the Qin and Han terracotta figurines, many human interventions have resulted in new lesions in the collection environment of the terracotta figurines. With the accumulation of time, there will be continuous damag...
Claims
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IPC IPC(8): G01N21/27G06T7/00
Inventor 张虎勤周铁吴晓明杜建强容波夏寅赵静
Owner XI AN JIAOTONG UNIV