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An integrated low cost miniaturised Fourier transform spectrometer for the simultaneous measurement of multiple atmospheric species.

一种集成的低成本小型傅里叶变换光谱仪，用于同时测量多种大气物质。

基本信息

批准号：
ST/K002074/1
负责人：
Roderic Jones
金额：
$ 3.73万
依托单位：
University of Cambridge
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FK002074%2F1
关键词：
integrated low cost miniaturised Fourier

项目摘要

Low cost gas sampling is at a premium for a range of industrial and environmental applications. Non-dispersive infra-red (NDIR) spectroscopy is a well-proven and widely used method for low cost gas detection and is now available in a variety of ultra small, low cost configurations. However, while for some species (e.g. CO2) NDIR instruments are capable of high precision measurements in a range of environments, if multiple absorbing species are present, with its restricted spectral resolution (typically 100s of cm-1), NDIR techniques cannot be used quantitatively. We propose to overcome this limitation through the use of a static FTIR with ~ 5 cm-1 spectral resolution, integrated with a compact miniature White cell to produce a prototype ultra compact FTIR spectrometer. The instrument will operate in the mid IR, a spectral region which contains the strong fundamental absorptions of many molecular species. The deliverables will be:- A functioning prototype gas FTS spectrometer and absorption cell- Laboratory validation and sensitivity tests (CO2, H2O, CH4 and N2O)- Results from limited field trialsConceptual design for a fully integrated low cost FTIR based instrumentThe principal deliverable, an integrated miniaturised low cost FTIR spectrometer, will have wide ranging applicability in low cost gas detection, including industry, environmental monitoring and atmospheric science. The intention would be to seek follow-on funding from TSB and STFC Innovations, and NERC/EPSRC for technical developments and scientific applications. The Project itself is expected to last for 6 months from 1-Oct 2012.

低成本气体采样在一系列工业和环境应用中非常重要。非色散红外（NND）光谱是一种经过充分验证并广泛使用的低成本气体检测方法，现在可以采用各种超小型低成本配置。然而，虽然对于某些物质（例如CO2），NATIONAL仪器能够在一系列环境中进行高精度测量，但如果存在多种吸收物质，则其光谱分辨率有限（通常为100 cm-1），NATIONAL技术无法定量使用。我们建议克服这一限制，通过使用静态FTIR与~5 cm-1的光谱分辨率，集成了一个紧凑的微型白色细胞，以产生一个原型超紧凑的FTIR光谱仪。该仪器将在中红外波段工作，这是一个包含许多分子种类的强基本吸收的光谱区域。可交付成果将包括：-一个功能性的原型气体FTS光谱仪和吸收池-实验室验证和灵敏度测试（CO2、H2O、CH4和N2O）-有限现场试验的结果-一个完全集成的低成本FTIR仪器的概念设计主要可交付成果是一个集成的低成本FTIR光谱仪，将在低成本气体检测中具有广泛的适用性，包括工业、环境监测和大气科学。目的是寻求TSB和STFC创新以及NERC/EPSRC的后续资金，用于技术开发和科学应用。该项目本身预计将持续6个月，即2012年10月1日至10月。