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在缩小规模的飞轮上演示的光电子应变测量系统
Matthias Franz Rath1,2, Christof Birgel2, Armin Buchroithner2
1CD-Laboratory for Measurement Systems for Harsh Operating Conditions, Graz University of Technology, 8010 Graz, Austria.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
一个新的非接触式光电子系统使用光学传感器和反射图案监测滑轮应变和变形. 这使动能储能系统的操作和材料分析更安全.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 传感器技术 传感器技术
背景情况:
- 动能储能系统的安全运行依赖于监测飞轮变压.
- 了解复合材料的长期影响,如碳纤维增强塑料,需要精确的应变测量.
- 对于高速旋转的部件,非接触式监控方法是可取的.
研究的目的:
- 为了研究一个光电子应变测量系统,用于无接触变形和旋转飞轮的位置监测.
- 评估系统区分飞轮变形和飞机内位移的能力.
- 用不同的旋转器材料和尺度来评估系统的性能.
主要方法:
- 开发了一个具有多个光学传感器的光电子系统.
- 一个特殊的反射图案被应用到旋转器表面进行传感器相互作用.
- 该系统在一个低速钢轮子和一个缩小的高速PVC塑料轮子上进行了测试.
- 变形测量与理论计算进行了比较.
主要成果:
- 该系统成功执行了无接触变形和位置监测.
- 结合来自多个传感器的数据,可以区分变形和位移.
- 在PVC旋转器上的测试表明,由于变形较高,在较小的尺度和较低的速度下可行性.
- 变形测量显示与计算值有很好的一致性.
- 失衡测量成功地得到了推导.
结论:
- 开发的光电子系统提供了一种可行的方法,用于无接触地监测滑轮的应变和变形.
- 系统区分变形和位移的能力对于准确的分析至关重要.
- 使用PVC旋转器可在较小的规模和速度下进行实验验证.
- 这项技术可以提高动能储能系统的安全性和材料分析.
相关概念视频
01:15Design Example: Strain Gauge Bridge or Wheatstone Bridge
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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...
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01:27Measurements of Strain
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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...
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