Description and flight tests of an oculometer |
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30 Left airplane Altimeter analog signals approximately beam Beam splitter boundary points calibration COLLECTION OPTICS coordinates copilot panel data flight electro-optical electronic dot experimental Twin Otter eye detail fixation fixed mirror flight environment flight instrument glide slope illumination source input instantaneous instrument being monitored instrument flight rules instrument landing system instrument panel instrument to instrument jitter laboratory landing approaches Langley Research Center line of sight located lookpoint measured memory feature middle marker minicomputer moving from instrument NASA experimental Twin number of transitions obtained oculometer equipment oculometer operator operated during flight optical path output signals percent pilot's look direction pupil center pupil diameter remote-sensing oculometer safety pilot scan converter scan pattern second TV camera sensing subsystem shown in figure signal processor signals were recorded simulated IFR subject's eye track the pilot's TV monitor Twin Otter aircraft U.S. Customary Units video scene video signal video tape voltage