BioTracker

[b]Figure 1[/b]: BioTRACKER being tested with a video camera. The pictures were used to evaluate pointing accuracy and sun-tracking software.Figure 1: BioTRACKER being tested with a video camera. The pictures were used to evaluate pointing accuracy and sun-tracking software.BioTRACKER is a high precision pointing platform for radiometers. It allows radiometers to track the Sun, observe the water surface, and conduct sky scans in support of atmospheric optics studies. In Figure 1, a video camera with a telephoto lens is mounted to BioTRACKER to test the system's performance and control software.

Figure 2 shows a screen shot of the control software when tracking the solar disk. OSPREy radiometers mounted on BioTRACKER are designed to include sun photometry capability and have a built-in camera to verify correct solar tracking.

[b]Figure 2[/b]: Screen shot of BioTRACKER software. The left side shows a image of the Sun recorded by the video camera mounted on the tracker. The Sun's center, as determined by the software, is indicated by a red cross. The graphs on the right side show the variation of the Sun's center within the frame of the video image during a full day of observation. The resulting functions can be used to accurately position the tracker towards the Sun's center, and to correct for alignment (e.g.,leveling) errors of the system.Figure 2: Screen shot of BioTRACKER software. The left side shows a image of the Sun recorded by the video camera mounted on the tracker. The Sun's center, as determined by the software, is indicated by a red cross. The graphs on the right side show the variation of the Sun's center within the frame of the video image during a full day of observation. The resulting functions can be used to accurately position the tracker towards the Sun's center, and to correct for alignment (e.g.,leveling) errors of the system.

 

 

Last Updated on Wednesday, 06 October 2010 12:09
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