Altitude Measurement of a Balloon Using Three Altimetry Methods
This experiment aims to measure the altitude of a balloon utilizing three distinct methods of altimetry: picture pixel ratios, trigonometric calculations using tangent, and barometric pressure readings. We hypothesized that the amount of pixels would be halved as height is doubled, that altitude can be established using a horizontal distance and tangent angle of elevation, and that barometric pressure will decrease with altitude. While results for up to 500 ft were consistent across methods, variabilities became evident beyond that height, highlighting the limitations of each technique.
Altitude Measurement of a Balloon Using Three Altimetry Methods
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Presentation Transcript
Krew Data Presentation Spencer Marsh Forest Lillund Christian Fernandez Michael Ritenour
Experiment Description • Our experiment is designed to tell us the altitude of our balloon using 3 different methods of altimetry. • Picture pixel ratios • Trigonometric triangle using Tangent • Barometric pressure
Expectations • Hypothesis A: As the height is doubled, the amount of pixels the object takes will half. • Hypothesis B: Can determine altitude with horizontal known distance and tangent angle of elevation • Hypothesis C: The barometric pressure will lessen as height is increased.
Camera Data This is where we measured the pixels of the pink ribbon.
Conclusions • Comparing the three methods, up to 500 ft of line, the calculated heights were similar. (within 5 ft) • After 500 ft, the results started to differentiate, due to visibility decreasing and unknown variables affecting the barometer.
