Evaluation of the sensitivity to mechanical vibrations of an IR Fourier spectrometer
Evaluation of the sensitivity to mechanical vibrations of an IR Fourier spectrometer
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DOI：
10.1063/1.2149009
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发表时间：
2005-12
影响因子：
1.6
通讯作者：
L. Comolli;B. Saggin
中科院分区：
文献类型：
--
作者：
L. Comolli;B. Saggin
本文介绍了欧空局火星快速轨道飞行器上目前绕火星运行的傅里叶变换红外光谱仪--行星傅里叶光谱仪对机械扰动敏感性的实验和理论研究。为了突出振动的预期影响，已经进行了理论分析，然后设计并进行了实验室测试，以确定仪器的特性。在机械振动的情况下，预计会有两种经典的干扰效应：干涉型，导致对干涉图的附加贡献，以及修改型，改变干涉仪的灵敏度。这两种影响在实验测试和仪器灵敏度中都得到了证实；此外，还强调和表征了干涉图的傅里叶变换对光谱的影响。同时考虑了谐波和随机宽带谱干扰的影响。
This article presents an experimental and theoretical investigation of the sensitivity to mechanical disturbances of a Fourier-transform infrared spectrometer, the Planetary Fourier Spectrometer, currently orbiting around Mars onboard ESA Mars Express orbiter. A theoretical analysis has been performed in order to highlight the expected effects of the vibrations, then laboratory tests have been designed and carried out for instrument characterization. The two classical types of disturbance effects were expected in the case of mechanical vibrations: the interfering type, leading to an additive contribution to the interferograms, and the modifying type, which changes the interferometer sensitivity. Both effects have been evidenced in the experimental tests and the instrument sensitivity derived; moreover, the effects on the spectra, which are the Fourier transform of interferograms, are highlighted and characterized. The effects of both harmonic and random broadband spectrum disturbances have been considered...