Engineering Research Equipment Grant: Excimer Pumped Dye Laser for Tomographic 3-D Imager

工程研究设备补助金：用于断层扫描 3D 成像仪的准分子泵浦染料激光器

• 批准号: 8705034
• 负责人: Lambertus Hesselink
• 金额: $ 9万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1989-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8705034&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Excimer

This is a Research Equipment Grant for an excimer pumped dye laser tomographic 3-D imaging system capable of making time-resolved 3-D images of a fluid flow at a rate of 1000 frames per second. This equipment will continue the development of an imaging system for the examination of a coflowing gaseous jet using holographic interferometry. Image information is recorded on photographic film, representing the optical pathlength, which is related to the index of refraction of the medium. The tomographic imager coupled to an excimer pumped dye laser opens exciting new applications. By tuning the UV radiation to a resonance line of a species of interest, only that gas will be measured. Thus it should be possible to selectively measure such species as O2 or OH in a combusting flow. In addition, by making a measurement of absorption along the path length of the probe beams, the cumbersome process of fringe readout can be avoided. This equipment should prove very useful in fluid mechanics and combustion research.

这是一种研究设备赠款，用于精确泵送染料激光层析成像3-D成像系统，能够以每秒1000帧的速度进行时间分辨的流体流动时间。 该设备将继续开发成像系统，以使用全息干涉测量法检查辅助气体射流。 图像信息记录在摄影膜上，代表光疗法，这与介质的折射指数有关。 层析成像仪耦合到准分子泵送的染料激光器为令人兴奋的新应用开放。 通过将紫外线辐射调整为感兴趣的物种的共振线，只能测量气体。 因此，应该有可能在燃烧流中选择性测量O2或OH等物种。 另外，通过沿探针梁的路径长度进行吸收测量，可以避免繁琐的边缘读数过程。 该设备应证明在流体力学和燃烧研究中非常有用。