Ring shake is a widespread phenomenon affecting a great number of species of both softwood and hardwood and is found in trees grown in temperate and tropical climates. Chestnut (Castanea sativa Mill.) represents one of the most important hardwood timbers that is very often affected by ring shake. This defect seems to be the only real limit to the spread and use of chestnut wood worldwide on a scale closer to the availability of this wood. The aim of this study was to examine the potential of tomographic measurement as a non-destructive method for predicting the possibility of the presence of ring shake in standing chestnut trees. For this reason, the experiments were carried out in a chestnut coppice stand where one hundred chestnut standards were monitored using an acoustic tomographic device, and subsequently harvested by a local company and cross-sectioned corresponding to the acoustic tests. This work proposed an applied approach to predicting and determining wood quality (sound wood vs. defective wood) from tomographic data. The model, based on a non-linear approach, showed that sonic tomography can identify ring shake in a tree trunk without affecting its biological activity, overcoming the difficulties of predicting ring shake using only visual inspection.

摇环是一种普遍现象，影响到许多软木和硬木树种，并且在温带和热带气候下生长的树木中发现。板栗（栗）密林（Mill。）代表最重要的硬木木材之一，它经常受到摇环的影响。这种缺陷似乎是板栗木材在世界范围内的普及和使用的唯一真正限制，其规模更接近于这种木材的可用性。这项研究的目的是检查层析成像测量作为一种无损方法来预测立栗树存在环摇的可能性的潜力。由于这个原因，实验是在栗树矮灌木丛站中进行的，在该站中，使用声波断层扫描仪监测了一百个栗子标准品，随后由当地一家公司收获，并根据声波试验截取了横截面。这项工作提出了一种应用的方法，可以根据断层图像数据预测和确定木材质量（有声木材还是有缺陷的木材）。