Unmanned underwater vehicles require a hull resistant to immersion and, therefore, to hydrostatic pressure, which places high demands on its design, manufacture and inspection, where dimensional control is a fundamental part of the verification of the shapes of the structure. In this research, a comparison is made of the dimensional control techniques currently used for the naval sector and their viability in the field of unmanned underwater vehicles. A cylindrical body steel model will be measured, with the characteristic dimensions of the unmanned underwater vehicles, executing tests using three measurement techniques, such as the optical measurement of surface points, the surface probing technology and the surface laser scanner with large volume of points. Experimental data will be provided in terms of mean diameter of the sections that make up the hull, defect of circularity and position of the optimum centre, which will lead to the development of a guide of good practices for selecting and using each technique depending on the requirements and demands of the unmanned underwater vehicle under study.

中文翻译：

---

无人水下航行器圆柱结构的尺寸控制：最先进技术的比较研究

无人水下航行器要求船体耐浸水，因此需要耐静水压力，这对其设计、制造和检查提出了很高的要求，其中尺寸控制是结构形状验证的基本部分。在这项研究中，对目前用于海军部门的尺寸控制技术及其在无人水下航行器领域的可行性进行了比较。将测量一个圆柱体钢模型，结合无人水下航行器的特征尺寸，使用表面点光学测量、表面探测技术和大体积点表面激光扫描仪三种测量技术进行测试。