Project “Lignoscan”

In the research project “Quality measurement of coniferous logs – Lignoscan”, a prototype for the detection and assessment of red rot was developed and successfully tested in the sawmill together with experts from ThüringenForst and an SME based in Thuringia. The foundations for the development of a measuring device were laid with systematic fluorescence measurements on a wide range of characteristics of spruce trunk wood with and without red rot. In addition, a laboratory setup for imaging, spectrally resolved wood fluorescence was set up and tested. The device developed as part of the project makes it possible to use optoelectronic sensors to detect red rot on the cross-section of the trunk wood, to determine the location of the rot and to objectively classify it into different rot grades (healthy, axe- and nail-proof, soft rot). An objective quality measurement can thus be ensured and used for better economic utilization of the wood.

BMELV, FKZ: 22009713