Field od use
Research equipment
Type of equipment:
Surface analysis
Department:
Department of wood science and technology
Chair:
Chair of Wood Pests, Modification and Protection of Wood
Responsible person
Research group
Wood pathology and protection
Source of funding
Access
The equipment is available at the Chair of Wood Pests, Protection and Modification of Wood, Rožna dolina VIII/34 (Department of Wood Science) and is available by prior arrangement with the person in charge.
Purpose
The hyperspectral camera was manufactured by Clyde Hyperspectral Imaging and Technology Ltd.
The basic technique of hyperspectral imaging (HSI) produces a spatial map of spectral features that allows the identification of material components and their spatial distribution. Therefore, this technique can be used to locate objects, determine the distribution of materials and detect process malfunctions.
Therefore, hyperspectral imaging has become one of the key analytical tools in many industries, for example - evaluation of food products, their authentication and safety. This is because the spectral characteristics are the 'fingerprint' of the material and part of the spectral imaging shows where this material is located, and with appropriate calibration the signal can be used to determine the concentration of material present. This has enabled the development of HSI as a fast and reliable technique suitable for objective automated quality assessment.
The hyperspectral system consists of two cameras. The first camera (VNIR) records the reflection of light in the range 400-1000 nm, while the second camera (SWIR) records the reflection in the near and short-wave infrared range, between 1000-2500 nm. The average spectral resolution of the cameras is 8 nm (VNIR) and 8 nm (SWNIR), respectively, which allows us to determine the individual elements of the observation as well as their states by subsequent image analysis.
The equipment is designed to image areas up to 1,5 × 1,5 m2 . It is therefore particularly suitable for the analysis of non-homogeneous materials such as wood. The following applications can be found in the literature:
- Determination of wood density distribution
- Determination of adhesive perforations in veneered panels
- Distribution of wood particles in WPC composites
- Growth of mould fungi on coatings, art products, etc.
- Monitoring of weathering of wood ...