A Tree Radar Unit TRU system can identify a tree’s condition and health. The electromagnetic radar wave is sensitive to a variety of conditions inside a tree’s trunk, such as moisture, changes in wood composition, hollows, punky wood, and other features. A special off-line software analysis program can identify all types of reflections, as well as the size and shape of roots. This information can be very helpful for researchers, particularly those who want to study the biology of trees.
A TRU system uses an electromagnetic wave to detect defects and voids inside a tree’s trunk. It is particularly sensitive to air pockets and moisture gradients. Different soil conditions are analyzed by analyzing acoustic tomography images to determine the proportion of compromised wood. An example of an early-stage decay interface is hollow, punky wood. A large moisture gradient is found in the sapwood-heartwood interface. In conifers, the resin pocket is present. The TRU software can identify different kinds of internal conditions in trees.
TRU’s can be used to analyze the structural root systems of trees. The signals are highly accurate and can penetrate surface structures. The TRU antenna is mounted on a small cart that the arborist pushes. The system measures the reflections of the signal at different depths. The resulting data is presented in graphical form in contour plots and 360-degree slices of the trunk. It is also possible to identify if a tree is suffering from any disease or decay.
The TRU system automatically calibrates for different soil conditions. It can detect decay in a tree’s trunk by determining the area of compromised wood. Using the data from the scan, a post-processing software can determine whether a tree has a cavity or is solid wood. In addition, it can assess the health of an entire tree at a time and place. The software is designed to accurately detect and map the internal structure of a tree’s trunk.
A tree’s structural root system is important for its health. Its root system is a critical component in tree maintenance. The TRU can detect and classify underground masses and is an important tool for diagnosing root diseases. Its 900-MHz antenna can be carried around in the trunk by the arborist and measures reflected radar waves. Once the data has been analyzed, it can be further classified according to the depth and shape of the roots.
The system uses an antenna of 900MHz to detect decay in trees. It can detect early-stage decay in trees, as well as large-scale root-system defects. It is highly accurate, but cannot distinguish between large and small roots. The acoustic shadows of the defects can be determined with resistance micro-drilling. The method was successful in detecting early-stage decay in a tree and identifying the severity of decay.
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