通过连续的空气流来改善接干扰测量测量
Albert Van Eeckhout1, Guillem Alvarez1, Igors Sics1
1ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain.
The Review of scientific instruments
|August 13, 2025
概括
一个粉丝的粉丝.
科学领域:
- 光学计量学是指光学计量学.
- 表面计量学 表面计量学
- 干涉测量是干涉测量的方法.
背景情况:
- 拼接干扰测量系统,如ALBA的Fizeau干扰仪,容易受到环境噪音的影响,特别是长镜.
- 平均测量减少噪音,但增加测量时间和不确定性.
- 减少环境噪音对于准确的长镜计量学至关重要.
研究的目的:
- 调查风扇产生的空气流对减少环境噪声的影响.
- 评估空气流对Fizeau表面重建的可重复性的影响.
- 为了确定空气流是否可以提高测量精度并减少不确定性.
主要方法:
- 对干涉测量数据的频率分析.
- 计算流体动力学 (CFD) 模拟.
- 在550毫米的X射线镜片段上复制ALBA的拼接测量程序.
主要成果:
- 评估了风扇产生的空气流对Fizeau表面重建可重复性的影响.
- 频率分析揭示了空气流对干扰度信号稳定性的影响.
- CFD模拟提供了对空气流动力学及其对测量稳定性的影响的见解.
结论:
- 风扇产生的空气流可以减轻接干扰的环境噪音.
- 使用带有旋转叶片的风扇可以提高长镜的测量可重复性.
- 该方法提供了一种在光学计量学中平衡测量时间和不确定性的方法.
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