Monitoring techniques for the non-destructive evaluation of bio-degradation and preservation process of cultural properties using AE method and Radar inspection

发展了声发射技术和雷达检测相结合的木材生物降解和保存过程监测技术，研究了声发射监测技术在木材白蚁和其他木材钻探害虫检测中的应用，明确了监测技术和监测条件。在木结构生物降解诊断技术说明书中总结了所获得的结果。分析了用雷达检测技术检测内部缺陷，如腐蚀、孔洞、打结等。阐明了该技术的可行性，将调查中获得的知识与其他无损检测方法获得的知识进行了评价，建立了木结构生物降解的综合诊断技术，并将声发射监测应用于受涝木材的聚乙二醇化处理。声发射产生的变化可以归因于处理条件的改变以及由此产生的缺陷，如木材-波导-传感器系统中的裂纹或校核、变形和摩擦。

Monitoring techniques for the non-destructive evaluation of bio-degradation and preservation process of cultural properties using AE method and Radar inspection were developed.Detection of wood infesting of termites and other wood boring insect using AE monitoring was investigated, and the monitoring techniques and conditions were clarified. The obtained results were summarized in a technical instruction for the diagnoses of bio-degradation of wooden constructions. Detection of inner defects such as rot, holes, knots etc. by using radar inspection technique was also analyzed. The feasibility of the technique was clarified.The obtained knowledge in the investigation was evaluated together with the ones obtained by other destructive- and non-destructive inspection methods, and a comprehensive techniques was established for the diagnoses of bio-degradation of wooden constructions.AE monitoring was also applied for the PEG treatment of the water logged wood. The change of AE generation could be attributed to the change of the treatment conditions and the resultant defects such as cracks or checks, deformation and the friction in the wood-waveguide-sensor system.The obtained results were published in academic journals.