The Sonic Tomograph works on the fact that solid wood is a better sound wave conductor than wood damaged by decay. Adopting this principle, it uses a series of sonic sensors, which can detect sound waves that are induced and propagated through the wood.
Sonic sensors are placed around the tree. Each sensor is connected to a nail, which is tapped into contact with the wood by a pin hammer at each inspection point. A small tap on the nails sends sound waves, which are received and measured by the other sensors, resulting in a tomogram.
Email: email@example.com Telephone: +65-64812289
Examples of 2D and 3D decay patterns