Interferometer Design Articles & Analysis
4 articles found
Fourier Transform Infrared Spectroscopy The first IR spectrometer was built in 1835, and it quickly became a valuable tool for chemical characterisation. It was a dispersive design which means that the IR light is split into its constituent frequencies (wavelengths) and each frequency detected sequentially. The issue with this dispersive design was the long time ...
Aspheres and other complex optical surface shapes have become common to many optical systems as they offer wider design flexibility, lighter weight, smaller volume, and optimized optical performance. ...
The decision was made to fully redesign the analyzer to take full advantage of advances in hardware and software technology. The third generation design represents a full reconfiguration of the instrument. Goals were to reduce initial and operating costs and improve performance while retaining the valuable features and twenty year service life of the previous model AirSentry ...
The instrument tested here has a measured noise-equivalent delta To f 0.01 °C, and it measures surface emissivities, in the field, with an accuracy of 0.02 or better in the 8–14-µm window 1depending on atmospheric conditions2, and within 0.04 in accessible regions of the 3–5-µm window. The unique, patented design of the ...