Mid-infrared Reflectance and Transmittance Measurements in the Laboratory using Field Instruments

摘要

This paper discusses methods developed for measuring the reflectance and transmittance of solid materials in the laboratory using instruments designed for the field. Having the ability to use field instruments to obtain lab-quality measurements negates the need for redundant instrumentation. In our work we use an ABB MR 170 Fourier Transform Infrared (FTIR) spectroradiometer to collect infrared spectra of natural and manmade surfaces in a variety of terrains and environments. Our laboratory protocols are optimized for the 3-14μm region of the electromagnetic spectrum. We describe our measurement protocols and present sample data.