Open source confessions of an "Old Space" engineer.
Sunday, September 5, 2010
Data Data Data
Here is some data from the last igniter/small rocket test I did (video in previous post). In this case, I'm sampling chamber pressure at 5kHz. You can see its a little rough which is not particularly surprising given the injection arrangement.
This next plot is a FFT of the above data. You can see a low frequency mode at ~125Hz with multiple harmonics.
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