Abstract: The 3D laser scanner provides the basis for realizing the high efficiency and high accuracy of the vertical metal tank capacity measurement.By analyzing the working principle of the Trimble TX8 3D laser scanner,the measured data of the 150 m³ vertical metal tank capacity measurement is modeled and analyzed.The experimental data shows that the Trimble TX8 is more consistent,efficient,and intuitive in terms of vertical tank volume measurement and basic volume transfer method data.In particular,its comprehensive visualization of sampled data can be extended to tank deformation,stress analysis modeling and other aspects,and offers the possibility to extend to other abnormal tank related volume values and other related analytical measurements.

Key words: 3D laser scanner, Trimble TX8, capacity measurement