倾斜角度对不同尺寸的物体温度测量的影响,使用光纤高 pyrometers
Salvador Vargas1, Alberto Tapetado2, Carmen Vázquez2
1Electrical Engineering Faculty, Universidad Tecnológica de Panamá, Ave. Universidad Tecnológica, El Dorado, Panamá 0819-07289, Panama.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
这项研究模拟了光纤光学火力计中的光学功率,并考虑了倾斜角度. 它表明,倾斜减少了收集的功率,在光纤时达到最大的功率.
科学领域:
- 光学工程是指光学工程.
- 计量学 计量学 计量学
- 热量测量 热量测量
背景情况:
- 在各种工业应用中,使用光纤高温计进行准确的温度测量至关重要.
- 现有的模型往往不能完全考虑对焦仪和目标表面之间的 misalignment的影响,如倾斜角度.
- 了解这些几何因素对于可靠的非接触温度计至关重要.
研究的目的:
- 开发和验证一款新的光学功率采集模型,用于考虑倾斜角度的光纤火力计.
- 为了研究光纤规格和对象参数对错位下收集光学功率的影响.
- 为确定最佳倾斜角度和距离提供方程,以最大限度地收集功率并最大限度地减少温度误差.
主要方法:
- 开发一种新的光学功率传输理论模型.
- 使用不同参数 (纤维直径,NA,物体大小,辐射率,倾斜角度,距离) 的开发模型进行数值模拟.
- 对模型与文献中现有的 pyrometer 模拟进行验证 (不倾斜).
主要成果:
- 该模型表明,增加光纤轴与表面正常之间的倾斜角度会减少收集的光学功率.
- 当光纤的视野完全包括目标对象时,就会收集最大功率.
- 该研究量化了倾斜角度,距离,物体大小,纤维NA和收集功率之间的关系.
结论:
- 开发的模型准确地预测了光纤光学火力计中的光学功率收集,包括倾斜的影响.
- 错位严重影响温度测量准确度,需要仔细考虑倾斜角度和距离.
- 衍生的方程有助于优化 pyrometer 设置,以确保最大信号并最大限度地减少测量误差,特别是对于小于视野的物体.
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