新型织应变传感器用于动作捕捉
Susanne Fischer1,2, Bahareh Abtahi1,2, Mareen Warncke1,2
1Institute for Textile Machinery and High Performance Material Technology (ITM), Faculty for Mechanical Science and Engineering, Technische Universität Dresden, 01062 Dresden, Germany.
Micromachines
|February 24, 2024
概括
这项研究引入了用于功能电刺激 (FES) 系统的新型织应变传感器. 这些织传感器可以在服装中进行谨慎的整合,改善中枢神经系统疾病患者的步态.
科学领域:
- 生物医学工程 生物医学工程
- 织科学 织科学
- 康复技术 康复技术 康复技术
背景情况:
- 功能电刺激 (FES) 帮助患有中枢神经系统疾病的个体,如多发性硬化症,通过改善步态.
- 精确的膝盖角度检测对于在FES系统中及时触发背部屈曲至关重要.
- 传统的移动捕捉传感器在日常使用中可能会很麻烦.
研究的目的:
- 呈现织布式应变传感器作为FES常规运动捕捉传感器的谨慎,集成的替代品.
- 调查织拉伸传感器的设计变化及其对测量行为的影响.
- 为了实现日常使用的功能性,不引人注目的FES腿的开发.
主要方法:
- 开发和制造使用基于织材料的织物编织应变传感器.
- 将传感器集成到织结构中,探索不同的集成方向 (以鱼为导向,以航线为导向) 和传感器宽度.
- 评估各种编织织应变传感器设计的测量行为.
主要成果:
- 在FES应用中证明了在膝盖角检测中使用织拉伸传感器的可行性.
- 确定了影响传感器测量性能的设计参数 (集成方向,传感器宽度).
- 展示了在功能性服装 (如长腿) 中进行谨慎整合的潜力.
结论:
- 织式应变传感器为FES系统中的运动捕捉提供了一个有希望的,谨慎的解决方案.
- 基于织品的传感器可以无地集成到服装中,增强用户的舒适性和合规性.
- 这项技术可以显著改善因神经疾病而导致步行障碍的人的生活质量.
相关概念视频
01:15Strain and Elastic Modulus
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
01:15Design Example: Strain Gauge Bridge or Wheatstone Bridge
The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
01:27Measurements of Strain
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...