The Internal Crack Detector is equipped with a control panel and a scanning unit and can be integrated in existing systems © Brookhuis Applied Technology
Wood is a living material that inevitably can show internal cracks. They can form during tree growth or occur during lumber drying or timber modification. They constitute disadvantages for the processing and later use of wood. These cracks can either be located on the inside of the wood or invisible on the surface and have a negative effect on wood quality. "Internal cracks are virtually unrecognizable for visual and X-ray scanners", Brookhuis managing director Pieter Rozema explains.
To detect flaws of that type, the Dutch company developed the Internal Crack Detector (ICD). It is the manufacturer's latest achievement. The ICD recognizes cracks in hard- and softwood starting at a length of 10 mm and diameters starting from 5 µm with a speed of up to 300 m/min.
The recognition reliability reaches up to 98% with a repeat accuracy of almost 100%. The system is both more precise and cheaper than X-ray or other available technologies and can be integrated into almost any kind of existing longitudinal conveyor, Brookhuis emphasizes.
The ICD system consists of a control panel and crack detection sensors and is suitable for almost all types of wood. On basis of the wood to be measured
and its dimensions, the producer determines the number and installation position of the sensors. In doing so, Brookhuis is taking the customer's needs into consideration. The system can be set up separately or connected to an existing scanner via ethernet connection. The data of every board is stored in an SQL database. This information can also be used for operating a cross-cut system.
