What is ColcheK™?
ColcheK™ is a specialised, non-destructive inspection tool for the detection and estimation of corrosion damage near and below ground level in street lighting columns.
What type of technology does the ColcheK™ system use?
ColcheK™ is a unique application of the through transmission, eddy-current inspection technique. It is a low frequency electromagnetic system that does not need any preliminary preparation of the lighting column. ColcheK™ compares the wall thickness of the column at and below ground level with the thickness at about 150mm above ground level, an area where there is unlikely to be any major corrosion damage.