We are pleased to announce the submission of a new manuscript presenting the development and validation of TIK Timber (Tree Inspection Kit) — an innovative, low-cost, and portable system for the non-destructive testing (NDT) of structural timber based on vibroacoustic analysis.

The device integrates an embedded electronics platform based on an ESP32 microcontroller, which autonomously controls a solenoid-driven mechanical actuator and captures acoustic signals through an electret microphone. The acquired signals are processed in real time by embedded algorithms, enabling the identification of resonance frequencies associated with the mechanical properties of wood.

Designed to operate wirelessly and autonomously, TIK Timber eliminates the need for external connections, making it particularly suitable for use in industrial environments such as sawmills or other non-laboratory settings.

To evaluate the system’s performance and reliability, extensive experimental testing was conducted under various conditions: different support configurations, measurement positions, and wood types — including both individual and stacked boards, notched joints, and glulam beams, using poplar (Populus) and pine (Pinus) species.

The results confirm that TIK Timber delivers accurate, repeatable, and consistent measurements, positioning it as a promising tool for the automated quality assessment of structural timber.

📁 Access to the data and results will be provided via the link below.

Stay tuned for updates on the manuscript’s publication and access details.