3D厚度形貌分析
在测力传感器下方使用针形探针，还可以绘制表面轮廓和较硬基材上的一层材料（例如，骨头上的软骨层）的厚度。这是通过“ XY扫描”和“查找接触”功能完成的。“查找接触”功能以恒定的速率移动针头，直到它刺入上部材料（例如软骨）表面，并在检测到向较硬材料（例如骨头）的过渡时停止。表面的垂直位置（载荷开始增加的位置）与界面的垂直位置（位移/力曲线中的拐点）之间的差提供了垂直厚度。
3D THICKNESS MAPPING
Using a needle probe under the load cell, it is also possible to map the surface profile and the thickness of a layer of material over a stiffer substrate (e.g. the cartilage layer over a bone). This is done using the “Scan XY” and the “Find Contact” functions. The “Find Contact” function moves the needle at a constant rate until it penetrates the upper material (e.g. cartilage) surface and stops when the transition to the stiffer material (e.g. bone) is detected. The difference between the vertical position of the surface (position where the load starts to increase) and the vertical position of the interface (first inflection point in the displacement/force curve) provides the vertical thickness. The thickness distribution can be calculated using the surface orientation previously obtained using the “Normal Indentation” function in the Mach-1 Motion software.
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