Implementation of Computer Aided Tool for Non-destructive

This paper reports recent attempts for implementing non-destructive measuring of moisture content in wood based on computed tomography technology. The study focus on an image analysis method that has been already proposed and validated in the literature, but it has not been tested for measuring low moisture content variations below fibre saturation point. The computed tomography method was tested against the oven-dry method. The results show that it is possible to apply this technology to measure low levels of moisture content based on a regression model, where the root mean square error of the model was 1,4 percentage points of moisture content. The method can still be improved because the density differences between samples are relatively small in relation to the experimental error and the computed tomography precision.