Softcrits has collaborated with Tecnatom for the development of a new equipment for measuring the length of the rods of irradiated nuclear fuel.

The system allows the length of the rod to be obtained with an uncertainty of less than 0.1 mm and a repeatability of 50 microns by means of artificial vision techniques and imaging algorithms.  A combination of highly accurate techniques and algorithms is used to obtain the length, allowing the absolute length value to be obtained by differential measurement.

This equipment has been designed to operate in pools of up to 15 metres in depth and incorporates a high resolution digital camera with shielding designed to make it immune to radiation.  The camera block incorporates high intensity lighting, and particularly significant in the artificial vision application is the automatic zoom that allows the measurement to be adjusted to a resolution of 2 microns.