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'Model Rocketry Acceleration Sensor & Dataloging'
1997\01\06@150159
by
Tim Kerby
I am interested in building a very small light weight rocket speed, altitude
and acceleration datalogger. It must also be cheap. I am looking for
sensors and fast logging code for about a 20 second period. I would like to
be able to serially dock this to an lcd module and display results on site,
even storing them on it so a few launches could be compared and then have an
rs232 download to a pc. Has anyone ever attempted a similar circuit or have
any data?
Any help would be appreciated.
Thanks
Tim
1997\01\06@152520
by
fastfwd
|
Tim Kerby <spam_OUTPICLISTTakeThisOuT
MITVMA.MIT.EDU> wrote:
> I am interested in building a very small light weight rocket speed,
> altitude and acceleration datalogger. It must also be cheap. I am
> looking for sensors and fast logging code for about a 20 second
> period. I would like to be able to serially dock this to an lcd
> module and display results on site, even storing them on it so a few
> launches could be compared and then have an rs232 download to a pc.
> Has anyone ever attempted a similar circuit or have any data?
Tim:
Call Scott Bartel at Delta-V Rocketry; they make something called the
ALTAC, which not only logs acceleration and pressure, but also
controls chute deployment. It's designed for high-power rockets,
not the little Estes jobs, but it does everything you want and
Scott's working on a new version for small rockets.
Its data is much more accurate than the other systems on the market,
and the PC-based data-analysis software that he bundles with it is
excellent.
Delta-V Rocketry's at 619 730-3701. Tell Scott that I sent you.
-Andy
=== Andrew Warren - .....fastfwdKILLspam
@spam@ix.netcom.com ===
=== Fast Forward Engineering - Vista, California ===
=== ===
=== Custodian of the PICLIST Fund -- For more info, see: ===
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1997\01\06@153744
by
BLEGER
Tim,
Your design could be simplified if the data you require is simply peak
speed, peak acceleration, and peak altitude. Just some food for
thought.
______________________________ Reply Separator _________________________________
Subject: Model Rocketry Acceleration Sensor & Dataloging
Author: pic microcontroller discussion list <PICLIST
KILLspamMITVMA.MIT.EDU> at smtp
Date: 1/6/97 7:45 PM
I am interested in building a very small light weight rocket speed, altitude
and acceleration datalogger. It must also be cheap. I am looking for
sensors and fast logging code for about a 20 second period. I would like to
be able to serially dock this to an lcd module and display results on site,
even storing them on it so a few launches could be compared and then have an
rs232 download to a pc. Has anyone ever attempted a similar circuit or have
any data?
Any help would be appreciated.
Thanks
Tim
1997\01\06@154143
by
Marc Ramsey
At 07:45 PM 1/6/97 +0000, you wrote:
>I am interested in building a very small light weight rocket speed, altitude
>and acceleration datalogger. It must also be cheap. I am looking for
>sensors and fast logging code for about a 20 second period. I would like to
>be able to serially dock this to an lcd module and display results on site,
>even storing them on it so a few launches could be compared and then have an
>rs232 download to a pc. Has anyone ever attempted a similar circuit or have
>any data?
>
>Any help would be appreciated.
>
>Thanks
>
>Tim
Check out:
http://www.taniwha.com/~paul/fc/
and:
http://www.javasoft.com/people/larrylf/rockets.html
They use the dreaded 80C32 processor, but I'm sure you could swap in a PIC
without
a great deal of difficulty...
_____________________________
Marc Ramsey, .....marcKILLspam
.....ranlog.com
http://www.ranlog.com/ramsey/
1997\01\06@161630
by
Maris Ambats
Tim Kerby wrote:
>
> I am interested in building a very small light weight rocket speed, altitude
> and acceleration datalogger. It must also be cheap. I am looking for
> sensors and fast logging code for about a 20 second period. I would like to
> be able to serially dock this to an lcd module and display results on site,
> even storing them on it so a few launches could be compared and then have an
> rs232 download to a pc. Has anyone ever attempted a similar circuit or have
> any data?
>
> Any help would be appreciated.
>
> Thanks
>
> Tim
PR Designs published plans for a small data logger using a PIC16C71 and
a serial EEPROM in Micro Computer Journal, Sept/Oct '95 issue. It has 4
analog input channels, talks to a PC via RS232, etc. You can look up the
original article or you can get info/source code from PR Designs
(508-470-0498).
Maris
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