| 摘要 |
A method for scanning an inner surface through an outer layer of material, the method including the steps of a) creating an energy beam with a wavelength, intensity, cross-section, and impact angle that, when impacted onto the outer layer of material, is sufficient to be at least partly reflected by the outer layer of material, thereby forming an outer-layer reflected beam to be at least partly transmitted in a first direction through the outer layer of material and onto the inner surface, to be at least partly reflected by the inner surface, thereby forming an inner-surface reflected beam, and to be at least partly transmitted in a second direction through the outer layer of material, b) impacting the energy beam onto the outer layer of material, c) detecting the outer-layer reflected beam and inner-surface reflected beam, d) distinguishing between the outer-layer reflected beam and inner-surface reflected beam, and e) determining from the inner-surface reflected beam a point of incidence between the energy beam and the inner surface in three dimensions. |
