NONDESTRUCTIVE METHOD AND SYSTEM OF INSPECTING INSIDE OF TREE BY EMPLOYING ACOUSTIC TOMOGRAPHY

摘要

When the internal state of a tree is inspected nondestructively, a high frequency acoustic wave having accurately controlled amplitude and frequency is injected into the tree from a plurality of positions, the acoustic wave propagated through the tree is received at a plurality of positions, and the internal state of the tree is visualized based on the received signals, thus diagnosing the cavity or the deteriorated part in a living tree nondestructively and efficiently.