Turbo FT 360 S/S 16 pixel Demonstration
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In December D&P demonstrated a 16 pixel 360 scan per second FTIR system
based on the Helicopter optical head used for the airborne testing this
past summer. Each interferogram in this system lasts for 1
millisecond! The computer and data acquisition system of the helicopter
effort was replaced with a dual CPU networked arrangement using standard
10/100 TCP/IP Ethernet. Newer, higher speed 4 channel data acquisition
boards were paired with two Pentium IV CPUs running at 2.2 GHz. All data
is acquired, processed, and displayed simultaneously at about 50-80% duty
cycle, depending on the number of coadds acquired. All this hardware was
installed into a single quad segment, rack mountable computer chassis. Two
of the four segments were populated with the two CPUs, plus two of the
four new data acquisition boards. This system could eventually support
a 64 pixel system running at 100 scans/sec, with an external host computer
for user interface and display. This would probably require Gbit Ethernet
and faster CPUs, which are already available.
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