基于Si APD的高速红外辐射温度计,用于分析燃烧室温度不稳定性
Louis Karapateas1, Yufeng Lai1, Xiangfei Meng2
1Sensor Systems Group, School of Electrical & Electronic Engineering, The University of Sheffield, Portobello Centre, Pitt Street, Sheffield S1 4ET, UK.
Sensors (Basel, Switzerland)
|December 17, 2024
概括
一种新的红外辐射温度计 (IRT) 使用雪崩光二极管 (Si APD) 和现场可编程门阵列 (FPGA) 进行快速,非接触式燃烧分析. 这种高速仪器精确地捕捉了燃料滴点火和重新点火周期.
科学领域:
- 燃烧分析 燃烧分析
- 光学测温仪是一种光学温度计.
- 高速仪器仪表仪器仪表 高速仪器仪表仪表
背景情况:
- 传统的热电偶在捕捉快速燃烧事件方面存在局限性.
- 准确的实时温度测量对于了解燃料燃烧动态至关重要.
- 开发先进的诊断工具对于可持续航空燃料 (SAF) 的研究至关重要.
研究的目的:
- 开发一种用于燃烧分析的新型,高速,非接触式红外辐射温度计 (IRT).
- 为了实现响应时间比现有的商业工具快得多.
- 为了能够精确地测量燃料滴体燃烧过程中的短暂温度波动.
主要方法:
- 使用雪崩光二极管 (Si APD) 与光纤相结合用于红外探测.
- 集成了一个优化的现场可编程网关阵列 (FPGA),用于高速数字信号处理.
- 实现了1μs的响应时间,并通过40MHz时钟验证了FPGA模块的性能.
主要成果:
- 开发的基于Si APD的IRT显示了1μs的响应时间,超过了商业仪器.
- 成功捕捉到一个喷气式A型煤油滴的完整点火和重新点火周期.
- 在1μs获取时间达到0.5°C的根平均平方 (RMS) 噪声规范和±0.25%°C+2°C的测量不确定性.
结论:
- 新的Si APD-IRT为燃烧分析提供了高时间精度,使得研究短暂现象成为可能.
- 这种仪器有助于详细描述燃料滴体燃烧,这对SAF研究至关重要.
- 这些发现为推动可持续航空燃料发展和从化石燃料过渡奠定了基础.
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