For a group project, I'm looking into replicatingfunctionality similar
to the Jolly Logic Chute Release, but with a pyro cutter instead of a
servo releasing a rubber band.
For mechanical reasons, the EasyMini would be mounted in the nose cone
and subjected to the ejection charge pressure. I'm not too concerned
about damaging the sensor, the sensor in the JLCR seems to handle the
same treatment quite well.
The flight is also planned to reach altitudes above the measurement
range of the sensor, so the flight would look something like this to the
EasyMini:
1) Liftoff
2) Altitude >100kft exceeded on ascent, sensor value clips
3) 1-3 pressure spikes around apogee, triggered by different altimeters
(multiple redundant charges, but ideally the EasyMini should only be
exposed to the first)
4) Altitude <100kft on descent, sensor value becomes valid again
5) Main altitude reached -> EasyMini releases chute.
In a couple of simplified tests in a vacuum chamber below 10mBar, the
EasyMini behaved as expected, but the pressure spikes were not simulated.
Do you expect issues from the pressures spikes regarding premature
detection of the main altitude, or is there any other thing that you can
think of the would preclude such "off-label" use of an EasyMini?
Thanks,
Reinhard
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