High-Frequency Shearing Interferometer Emission Velocemeter (SIEVE) for High-Temperature Gas Diagnostics

用于高温气体诊断的高频剪切干涉仪发射速度计 (SIEVE)

• 批准号: 9461637
• 负责人: PETER ROSTLER
• 金额: $ 7.49万
• 依托单位: Science Research Laboratory Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-01-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9461637&HistoricalAwards=false
• 关键词: Frequency; Shearing; Interferometer; Emission; Velocemeter

This Small Business Innovation Research Phase I Project will develop a powerful optical diagnostic for high temperature gases that is fundamentally different from any technique currently in use. This diagnostic provides spatially localized information, like laser-induced fluorescence, but does not require a laser. It utilizes the optical emission from the hot luminous gases. As explained in this proposal, the emitted light can be optically detected and subsequently manipulated and separated into two components whose intensity difference is due only to optical emission from a spatially localized region within the luminous volume. More precisely, this intensity difference is due to one spatial Fourier component of the light source distribution in the selected, localized region. Because of prior university and SBIR development of low-frequency devices, a high-frequency shearing interferometer emission velocimeter (SIEVE) can be designed, fabricated, and demonstrated under SBIR funding. In Phase I, three different ways to extend the technique to high frequencies will be analyzed, conceptual designs for instruments will be developed, and the light intensity requirements for each method will be calculated. A complete instrument will be built, demonstrated, and characterized during Phase II.

这个小型企业创新研究第一阶段项目将开发一种强大的高温气体光学诊断技术，与目前使用的任何技术都有根本的不同。这种诊断提供空间局部化信息，如激光诱导的荧光，但不需要激光。它利用热发光气体的光发射。如该方案中所解释的，发射的光可以被光学地检测并且随后被操纵并被分离成两个分量，其强度差异仅仅是由于来自发光体积内的空间局部化区域的光发射。更准确地说，这种强度差异是由于光源在选定的局部化区域中分布的一个空间傅里叶分量造成的。由于前期大学和SBIR对低频器件的开发，可以在SBIR的资助下设计、制造和演示高频剪切干涉仪发射速度计(SIEVE)。在第一阶段，将分析将该技术扩展到高频的三种不同方法，开发仪器的概念设计，并计算每种方法的光强度要求。一个完整的仪器将在第二阶段建造、演示和表征。