Multi-Element Strain Gauge Modules for Soft Sensory Skins
Multi-Element Strain Gauge Modules for Soft Sensory Skins
复制标题
适用于软感官皮肤的多元件应变计模块
DOI：
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发表时间：
2016
影响因子：
4.3
通讯作者：
Rebecca K. Kramer
中科院分区：
文献类型：
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作者：
E. White;Jennifer C. Case;Rebecca K. Kramer
在本文中，我们描述了由弹性体基板中的电阻应变计组成的传感模块的制造和测试。每个模块包含三个电阻计，提供足够的信息来重建模块的几何形状。该模块由两片粘合的有机硅弹性体片材制成。传感元件是基于基板微通道内包含的室温液态镓铟合金的电阻应变计。我们通过在模板上机械拉伸模块并测量嵌入式液态金属应变片的电阻变化来演示该模块的功能。从已知应变开始，我们校准设备并拟合二次模型。利用模型和测量的误差分布，我们可以预测三角形模块的角点（我们称为节点）重建位置的不确定性。
In this paper, we describe the fabrication and testing of a sensory module composed of resistive strain gauges in an elastomer substrate. Each module contains three resistive gauges, providing sufficient information to reconstruct the geometry of the module. The modules are fabricated from two bonded sheets of silicone elastomer. The sensing element is a resistive strain gauge based on room-temperature liquid gallium-indium alloy contained within microchannels in the substrate. We demonstrate the functionality of the module by mechanically stretching it over a template and measuring the change in resistance of the embedded liquid metal strain gauges. Starting with known strains, we calibrate the device and fit a quadratic model. With the model and the measured error distribution, we can predict the uncertainty in the reconstructed position of the corners of the triangular modules, which we refer to as nodes.