[Space] pressure sensor?

Brian Choate brian.choate at gmail.com
Wed Jun 9 16:02:16 PDT 2010


The altimeter looks really cool. I had been looking at rocket
altimeters, but I was only finding ones that would work to 20 K or less.

B.


On 06/09/2010 12:31 PM, Erik Ebert wrote:
> I think I have my issues with the listserver straightened out.  Lets
> see if this get through...
> 
> 
> Thanks for letting me participate in the launch. Great pictures!
> 
> Here are some of the devices was mentioning:
> 
> Recording flight computer/logger with 2-axis accelerometer and 100k baro sensor:
> www.featherweightaltimeters.com
> 
> Small integrated GPS/Ham/APRS with onboard logging:
> www.bigredbee.com
> 
> The catch with both of those is the launch-detect that triggers the
> recording is designed for rockets, so you'd have to trick it.  For
> ground-tests, we just swing them around with our arms to simulate
> liftoff Gs, so you'd just have to do that (or maybe a salad-spinner)
> right before you install the device and launch.
> 
> 
> Old email from Ken, one of our club members who is involved in the
> altitude record committee (also cellphone network analysis in his day
> job), on some GPS's that do not cut out at 60k.  If you make it out to
> one of our launches, you and he should talk:
> 
> "Hmmm ... have to check the FLP chipset ... but other versions of the
> SirfStar have had some severe filtering problems when used in a highly
> dynamic (e.g. lots of vertical movement) environment with accurate
> altitude reporting.
> 
> The Trimble Lassen IQ used in the Beeline and the uBlox used in the
> GPSFlight and RDAS both look to be fine when used in these
> environments and neither have a 60k' altitude limit."
> 
> 
> 
> Our club's website.  First launch of the season is next weekend,
> 6/17-6/20.  Visitors/new members welcome!:
> www.aeropac.org
> 
> 
> My website (somewhat out-of-date):
> www.eebert.com/Rockets
> 
> and some of my rocket video:
> http://www.youtube.com/results?search_query=eebert3
> 
> 
>   -- Erik
> 
> 
> 
> On Tue, Jun 8, 2010 at 11:37 PM, Bryan Klofas <bklofas at gmail.com> wrote:
>> Hey Erik--
>>
>> Who manufactured that rocket Accelerometer/pressure sensor/barometer
>> that you brought to the meeting tonight?
>>
>> Thanks.
>> --
>> Bryan Klofas, KF6ZEO
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