Barrett-Snyder Kieran, Lane Susan, Lazarus Nathan, Alberts W C Kirkpatrick, Hanrahan Brendan
Sensors and Electron Devices Directorate, U.S. Army Research Laboratory, Adelphi, MD 20783, USA.
Electrical and Computer Engineering, University of California, Santa Cruz, CA 95064, USA.
Micromachines (Basel). 2021 May 18;12(5):574. doi: 10.3390/mi12050574.
The Pacinian corpuscle is a highly sensitive mammalian sensor cell that exhibits a unique band-pass sensitivity to vibrations. The cell achieves this band-pass response through the use of 20 to 70 elastic layers entrapping layers of viscous fluid. This paper develops and explores a scalable mechanical model of the Pacinian corpuscle and uses the model to predict the response of synthetic corpuscles, which could be the basis for future vibration sensors. The -3dB point of the biological cell is accurately mimicked using the geometries and materials available with off-the-shelf 3D printers. The artificial corpuscles here are constructed using uncured photoresist within structures printed in a commercial stereolithography (SLA) 3D printer, allowing the creation of trapped fluid layers analogous to the biological cell. Multi-layer artificial Pacinian corpuscles are vibration tested over the range of 20-3000 Hz and the response is in good agreement with the model.
帕西尼小体是一种高度敏感的哺乳动物感觉细胞，对振动表现出独特的带通敏感性。该细胞通过使用20到70个弹性层包裹粘性流体层来实现这种带通响应。本文开发并探索了一种可扩展的帕西尼小体力学模型，并使用该模型预测合成小体的响应，这可能成为未来振动传感器的基础。利用现成的3D打印机提供的几何形状和材料，精确模拟了生物细胞的-3dB点。这里的人工小体是在商用立体光刻（SLA）3D打印机打印的结构内使用未固化的光刻胶构建的，从而能够创建类似于生物细胞的被困流体层。对多层人工帕西尼小体在20 - 3000Hz范围内进行了振动测试，其响应与模型吻合良好。
