Application of acoustic arrays in forestry engineering

The degradation of wood structures by xylophagous insect attacks is a partly unavoidable worldwide problem. On the other hand, acoustic emissions (AE) are elastic waves in solid materials caused by fractures in macro- or microstructures or by friction, routinely used as a standard method to study fatigue and other phenomena in materials engineering. In wood, sounds have long been recorded and recorded for the purpose of identifying active insect attack.

The objective of this line of research is to find and develop a low-cost, non-contact technique, using a MEMS microphone array, capable of detecting and accurately locating active xylophagous insect larvae inside wood. The system under development could also be aimed at infection control in museums and other places where protection of heritage wood is necessary, unintentional infections in the international wood trade, in the assembly and use of infected wood and, in all cases, would allow the execution of selective, targeted and localized treatments and the verification of their success.

Related publications

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Acoustic detection and localisation system for Hylotrupes bajulus L. larvae using a MEMS microphone arrayMartínez, R.D.; Izquierdo, A.; Villacorta, J.J.; del Val, L.; Basterra, L.A.2023Applied Acoustics
Volume 213, October 2023, 109618
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