在模拟的身体设备接口上评估接口压力传感器的动态性能
M Hamilton1,2, H Sivasambu2, K Behdinan3
1Institute of Biomedical Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada.
Canadian prosthetics & orthotics journal
|August 24, 2023
概括
静态测试充分代表了在移动过程中辅助设备的压力传感器性能. 使用负载晶圆可以提高动态测试的准确性,简化临床应用和验证.
科学领域:
- 生物力学 生物力学
- 生物医学工程 生物医学工程
- 传感器技术 传感器技术
背景情况:
- 在身体与设备接口的压力传感对于评估步行和跑步等活动中辅助设备的适应性和功能至关重要.
- 不同压力传感器配置的动态性能特征仍然不完全理解.
研究的目的:
- 为了研究临床相关的设置配置对两个常见的薄膜压力传感器的影响.
- 分析装载区域,接口元件 (pucks) 和校准方法对传感器性能的影响.
主要方法:
- 一台定制的通用测试机器模拟了身体与设备接口上的动态,与移动性相关的负载.
- 通过在各种条件下评估精度和歇斯底里,评估传感器性能.
主要成果:
- 传感器校准显著影响性能,尽管弹性质加载晶圆减轻了这些差异.
- 两种测试的传感器表现出可比的动态性能,与制造商规格和先前的静态/半静态研究保持一致.
- 静态和准静态测试方法似乎足以代表移动性相关条件下的传感器性能.
结论:
- 静态测试可以有效预测动态活动期间辅助设备的压力传感器性能,简化临床验证.
- 建议在动态测试场景中使用负载晶圆来优化传感器性能.
- 这些发现减少了压力传感器临床应用的动态性能验证的负担.
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