ArborSonic 3D Acoustic Tomograph
The ArborSonic Tomograph measures the speed at which a sonic pulse travels through a tree from various points (based on the principle that sound travels faster through good wood than decayed wood). The sonic pulse is generated by contact with pins with a digital hammer, around the tree’s circumference. Sensors, attached to the pins, measure the time sound takes to travel through the wood.
Once all the pins have been tapped, the information is sent to a laptop where the speed variations are displayed using a range of colours.
The Fractometer is a device for measuring the strength of timber by assessing its bending angle to the point at which it snaps. The sample is obtained by first taking a core from the tree by using an increment borer. The strength of the wood is measured along the sample so an idea of the state of the tree stem, at this point, can be determined.