IML Instrumenta Mechanik Labor Electronic GmbH products

The PiCUS Sonic Tomograph is used for detailed road safety examinations on trees in order to assess the inner condition of trunks with hollows or fungi. Sonic tomographic measurements are particularly common in the area near the base of trees, additionally PiCUS Sonic Tomograms also provide valuable information on pruning wounds and branch forks when diagnosing trees. A 2D image is calculated from the measured speeds and geometrical information on the measuring level. The graphic representation displays areas with different transit times in different colors. In this way, not only can a distinction be made between intact and defective, but gradations in the degree of decomposition can also be recognized. The associated PiCUS-Expert-Software enables the creation of 3D graphics using different tomographic measuring levels. This allows the spread of the damage to be shown vividly and inserted into a photo of the tree.

Both our tomography methods do require exact geometry information in regards to the positioning of all measuring points in order to calculate the sonic and electric resistance tomograms. The tomograms are more precise when the positioning of the measurement points is entered as accurate as possible. The PiCUS Calliper is an instrument that helps to measure the positions of all measuring points quickly and accurately. The geometry of a tree at the measuring level can be recorded precisely using a triangulation method. The level is split into many triangles, the lengths of all sides of which are measured. Each MP is a corner of a triangle. Two MP are part of all the triangles in a measurement. The line between these two points is called the “baseline”. The position of the third corner of the triangle is calculated using the length of the sides. Based on one or three baselines, the x/y positions of all MP can be calculated.