Application of a Novel Low-Cost Hyperspectral Imaging Setup Operating in the Mid-Infrared Region

Proceedings

Zimmerleiter, Robert¹  Duswald, Kristina²  Kilgus, Jakob³ 

[1] Author to whom correspondence should be addressed.;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018;Research Center for Non Destructive Testing GmbH (RECENDT), 4040 Linz, Austria

关键词: hyperspectral imaging;    mid-infrared;    tunable Fabry-Pérot interferometer;    bolometer camera;    machine learning;   

DOI  :  10.3390/proceedings2130800

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

In this contribution, we demonstrate the realization and application of a low-cost, flexible, small and fast hyperspectral imaging approach operating in the midinfrared fingerprint region where most molecules exhibit their fundamental vibrations. Following this approach, the recording of chemical images of macroscopic-sized samples at standoff distances in reflection geometry is possible. The optical setup is based on spectral identification by means of a MEMS-based Fabry-Pérot interferometer combined with 2D-snapshot spatial resolution using a bolometer camera. Results show the successful spatially resolved (resolution below 500 µm) chemical identification of different samples deposited on a metal surface (FOV = 6 × 5 cm) at a working distance of 35 cm.

【 授权许可】

CC BY