3D metrology systems are non-contact fully automatic fiber-based optical system. In the nuclear industry, the need for high-precision measurements is ever-critical. This need starts in the production of nuclear reactor components (cladding, slot welding, etc.) and continues into high-radiation labs and production environments – in gloveboxes, hot cells, and nuclear reactors. The industry also measures and monitors the usage rate of fuel pellets and rods, and must analyze damage to all structural material affected by radiation, high temperatures, and high pressures.