Re: Electronic design considerations
- From: "Yankee Bravo" <yb@xxxxxxxxxx>
- Date: Thu, 25 Aug 2005 19:52:25 GMT
> Since electronics do not know much about elevation, there are two major
> changes - temperature and pressure. The largest change would be a change
in
> temperature. Unless electronics are heated, there could be a major
problem
> for displays. Also, batteries may not work as well. Pressure change
should
> not be much of a problem.
>
> When it comes to radiation, the question is how long the electronics are
> going to be up there? Unless it is a very long time, I doubt the
radiation
> will be a major factor.
Actually it might be a factor. NASA research aircraft have had several
single event upsets in semiconductor based memories at > 40,000 feet on
missions lasting even just a few hours. Avionics containing microprocessors
and memory were not affected but the desktop grade PCs strapped in equipment
racks would crap out with a memory parity error or something once every few
days. They believed it was radiation induced. The same computers worked
fine on the ground. The Kuiper Airborne Observatory (a C-141 A model) is
one example where this happened.
.
- References:
- Electronic design considerations
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- Re: Electronic design considerations
- From: COLIN LAMB
- Electronic design considerations
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