Research on the detection technology of xuan paper's ink moisturizing properties based on air-coupled ultrasound
Xuan paper occupies a position that cannot be underestimated in the history of Chinese painting and calligraphy art.Moistening is an important indicator to identify the quality of rice paper,so the detection of its moisturizing is very important.The existing detection methods are easy to damage the rice paper and are greatly affected by human subjective factors.In order to solve the defects of the existing detection technology,this paper proposes to use the air-coupled ultrasonic technology to detect the ink wetness of the rice paper.C-scan imaging was performed on the rice paper,and the color distribution relationship in the imaging results was analyzed by the color histogram to evaluate the ink wetness of the rice paper.When using a 400 kHz air-coupled probe and a scanning speed of 200 mm/s,the C-scan results can all characterize the ink wetting properties of different rice paper.This method overcomes the influence of subjective factors in traditional testing,and can be used without damage to rice paper.Realize wettability detection.The above results show that this method provides some theoretical and practical references for non-destructive testing of rice paper.
air coupled ultrasoundxuan paper's ink moisturizing propertiescolor histogram