In vivo compressibility of the human fingertip
In vivo compressibility of the human fingertip
复制标题
人体指尖的体内压缩性
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
K. Dandekar
中科院分区：
文献类型：
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作者：
M. Srinivasan;R. Gulati;K. Dandekar
在人类对物体进行手动探索或操纵期间，指垫的机械特性在控制触觉信息的感测以及操纵的控制中起主导作用。为了测定人体指尖在体内的可压缩性，使用专门设计的装置进行静态压痕实验。用尖探针测量不同压痕深度下指尖的体积变化。结果表明，指尖几乎是不可压缩的点压头，与最大的体积变化（约1%）发生在最大的压痕深度（4毫米）。这些数据被用于开发可靠的指尖机械模型，以更深入地了解触觉的生物力学基础。
During manual exploration or manipulation of objects by humans, the mechanical properties of the fingerpads play a dominant role in governing the sensing of tactile information as well as the control of manipulation. To determine the in vivo compressibility of human fingertips, static indentation experiments were performed using a specially designed apparatus. Volume changes of the fingertips were measured at various depths of indentation by a sharp probe. The results show that the fingertip is almost incompressible for a point indentor, with the highest change in volume (about 1%) occurring at the largest depth of indentation (4 mm). This data is being used in the development of reliable mechanistic models of the fingertip to gain a deeper understanding of the biomechanical bases of tactile sense.