Physics – Geophysics
Infrared Spectrometers, Auxiliary Equipment, And Techniques, Instruments And Techniques For Geophysical Research: Exploration Geophysics, Solar Instruments
A commercial ABB-Bomem DA5 Fourier transform spectrometer (FTS) was refitted with new software and electronics to create a FTS that is appropriate for both ground-based and balloon-based measurements. Nearly all the electronics were replaced, and new control software was written that allows the instrument to run remotely, provides access to all housekeeping information, and permits considerable freedom in data processing approaches. A ``delta'' tracker was used for fine tracking of the sun over a small tracking range, using the main gondola pointing system for coarse azimuth tracking. This facilitated a simple, effective method of instrument integration onto the payload. The new design reduced the mass of the FTS from 90 to 55 kg and reduced the power consumption from 145 to 65 W.
Drummond James R.
McElroy Thomas C.
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