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High altitude balloon payload, from Sable-3 discussion
djellison
post Sep 26 2007, 11:16 PM
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http://www.unmannedspaceflight.com/index.p...20&start=20

We began talkin about a UMSF balloon - and who know what might happen if enough people think about something hard enough, thoroughly enough and long enough.

How's about this as a starting point.
http://vpizza.org/~jmeehan/balloon/ with http://www.chem.hawaii.edu/uham/part101.html as an important regulatory start point (I'm going to look up the UK regs for this as well)

http://www.srcf.ucam.org/~cuspaceflight/nova1launch.html is also very impressive - all done in the UK

This http://www.makezine.com/blog/archive/2007/...video_podc.html is particularly impressive - I like the multiple-cameras slant.

Anyway - thought I'd get a thread going - this is an idea I like too much to let it gather dust in a corner - the one thing that I think would be nice to achieve is self-portraiture of some sort - think Beagle 2's WAM etc....perhaps in a corner of the FOV of one of/the imaging system. What sort of limit's should we set ourselves? 1kg 10x10x20cm? (sort of 2U Cubesat-on-a-diet budget)

Doug
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djellison
post Oct 3 2007, 09:15 AM
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A 90p thermistor's great...BUT....you need something to read it, log it, and then spit it back out to you on the ground - it becomes a big problem.

There are commercially available stand alone thermometers that log - but they're not cheap. More sense for a first flight might be a simple standalone max/min system like this http://www.maplin.co.uk/Module.aspx?Module...er&doy=3m10 Something like that will also let me test the GMC sub-ass in the freezer with the lead hanging out.

We wont have a full trace- but we will have a record of the 'worst' conditions both internally and externally. For understanding the 'system' - that's a usefull point.

I want to pack this thing full of as many simple, stand alone, independent systems to get as much as we can, as easily as we can, as cheap as we can - to learn how it all works - so we can say "Yes - we know how to fly a balloon to >80,000 ft and get it back safely"

THEN....we can start thinking about some onboard intelligence that can measure and log...

Lat
Long
Alt
Pressure
Multiple temperatures ( internal battery - internal camera - external - external GMC )
Voltages
Acceleration in 3 axis
Orientation in 3 axis

PLUS - scientific study such as UV etc etc.

But that's a whole realm of 'how the hell....' beyond my knowledge - and I want to figure out how to fly a balloon and get it back before figuring out how to make it a genuine platform for investigation.
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JRehling
post Oct 3 2007, 05:59 PM
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centsworth_II
post Oct 4 2007, 10:31 PM
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QUOTE (JRehling @ Oct 3 2007, 01:59 PM) *
It might even be worth it to have an "instrument cam" that ONLY looks at a panel loaded with cheap little instruments.

I find this an interesting possibility. I'm surprise to not see any response to it.
One of the instruments could be a compass.
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Posts in this topic
- djellison   High altitude balloon payload   Sep 26 2007, 11:16 PM
- - helvick   I'm definitely on board for this but I'm i...   Sep 27 2007, 06:32 AM
|- - dvandorn   QUOTE (helvick @ Sep 27 2007, 01:32 AM) I...   Sep 27 2007, 03:26 PM
- - Paolo Amoroso   QUOTE (djellison @ Sep 27 2007, 01:16 AM)...   Sep 27 2007, 09:39 AM
- - djellison   That's what WAM means - Wide Angle Mirror - yo...   Sep 27 2007, 10:06 AM
|- - Paolo Amoroso   QUOTE (djellison @ Sep 27 2007, 12:06 PM)...   Sep 27 2007, 01:34 PM
- - djellison   A starter for 10: Powershot A570IS (IS would be a...   Sep 27 2007, 02:15 PM
- - helvick   Things to bear in mind. Not all digital cameras...   Sep 27 2007, 04:20 PM
|- - ElkGroveDan   QUOTE (helvick @ Sep 27 2007, 08:20 AM) A...   Sep 28 2007, 04:46 AM
|- - jamescanvin   QUOTE (helvick @ Sep 27 2007, 05:20 PM) I...   Sep 28 2007, 02:04 PM
- - nprev   Well, here's something for that; not cheap, th...   Sep 28 2007, 12:10 AM
|- - helvick   QUOTE (nprev @ Sep 28 2007, 01:10 AM) Wel...   Sep 28 2007, 08:14 AM
- - Juramike   This is an absolutely excellent idea. I'll vo...   Sep 28 2007, 04:33 AM
- - djellison   I saw 'kit' and thought 'great- I...   Sep 28 2007, 07:40 AM
- - djellison   The smartphone is a genius idea - it would make an...   Sep 28 2007, 11:38 AM
- - AndyG   Here's a more-or-less self-explanatory table o...   Sep 28 2007, 12:06 PM
- - jamescanvin   Great info AndyG. Looking at some of the other fo...   Sep 28 2007, 12:41 PM
- - djellison   At that level it's a little bit about luck - b...   Sep 28 2007, 12:57 PM
|- - ustrax   Hey Doug...what do you think of this first approac...   Sep 28 2007, 01:43 PM
- - nprev   Nice logo, ustrax! Just a general engineeri...   Sep 28 2007, 02:05 PM
- - djellison   Payload wouldn't be thermally 'controlled...   Sep 28 2007, 02:23 PM
|- - nprev   QUOTE (djellison @ Sep 28 2007, 07:23 AM)...   Sep 28 2007, 03:57 PM
|- - JRehling   [...]   Sep 28 2007, 05:36 PM
- - jamescanvin   One more stitching test using the SABLE-3 images. ...   Sep 28 2007, 02:38 PM
|- - ustrax   You know how this guys are Doug... Seing those ...   Sep 28 2007, 02:43 PM
- - djellison   Storage, Volume, Mass, Power, Money If you can ...   Sep 28 2007, 03:13 PM
- - scalbers   Hi - this link has a nice high altitude photo from...   Sep 28 2007, 04:51 PM
- - Juramike   One possibility might be to put all the batteries ...   Sep 28 2007, 04:51 PM
- - djellison   Actually - the altitude will be limited by the env...   Sep 28 2007, 05:55 PM
- - nprev   Good point, Doug. However, ascent velocity is stil...   Sep 28 2007, 06:08 PM
|- - Astrophil   Here's an idea for a future mission: re-enact ...   Sep 29 2007, 11:02 AM
- - dvandorn   Have y'all thought about where you'd want ...   Sep 29 2007, 05:22 AM
- - djellison   Actually - the FAA ( and I'm looking up the UK...   Sep 29 2007, 11:10 AM
- - djellison   Just a bit of fun using Google Sketchup. Never use...   Sep 29 2007, 09:52 PM
|- - ElkGroveDan   QUOTE (djellison @ Sep 29 2007, 01:52 PM)...   Sep 29 2007, 10:04 PM
- - djellison   I think it just lets you interface with other form...   Sep 29 2007, 10:10 PM
- - ngunn   I really hope you guys pull this off. Unfortunatel...   Sep 30 2007, 07:54 AM
- - remcook   Cool project! How much would a weather balloon...   Sep 30 2007, 09:30 AM
|- - ugordan   QUOTE (remcook @ Sep 30 2007, 11:30 AM) I...   Sep 30 2007, 09:58 AM
- - remcook   By the way, did this link get mentioned? http://w...   Sep 30 2007, 09:43 AM
- - Juramike   The twin balloon idea is pretty good. Launching t...   Sep 30 2007, 02:50 PM
|- - ugordan   QUOTE (Juramike @ Sep 30 2007, 04:50 PM) ...   Sep 30 2007, 03:11 PM
- - djellison   Plus -two of everything to buy (and in this case, ...   Sep 30 2007, 03:18 PM
|- - nprev   QUOTE (djellison @ Sep 30 2007, 08:18 AM)...   Sep 30 2007, 06:33 PM
|- - dvandorn   QUOTE (djellison @ Sep 30 2007, 10:18 AM)...   Oct 1 2007, 04:39 AM
- - dvandorn   Well... considering the fact that Voyagers 1 and 2...   Oct 1 2007, 04:37 AM
|- - ugordan   QUOTE (dvandorn @ Oct 1 2007, 06:37 AM) W...   Oct 1 2007, 08:27 AM
|- - tedstryk   QUOTE (dvandorn @ Oct 1 2007, 04:37 AM) W...   Oct 4 2007, 09:23 PM
- - AndyG   Is there an issue with expanded polystyrene at ver...   Oct 1 2007, 11:12 AM
|- - djellison   QUOTE (AndyG @ Oct 1 2007, 12:12 PM) Is t...   Oct 1 2007, 12:20 PM
- - djellison   Status update : Proposal : <2kg payload - on t...   Oct 1 2007, 09:43 PM
- - volcanopele   I would seriously look at the design of Huygens as...   Oct 1 2007, 10:01 PM
- - djellison   I was having similar thoughts, how controlled can ...   Oct 1 2007, 10:48 PM
- - nprev   Weight distribution would also be very important f...   Oct 1 2007, 11:59 PM
- - djellison   The problem isn't a million miles from MER ter...   Oct 2 2007, 06:25 AM
- - jamescanvin   I don't think controlling the rotation is goin...   Oct 2 2007, 09:45 AM
- - djellison   Discovered the FM transmitter may be a no-no in th...   Oct 2 2007, 11:11 AM
- - ngunn   Doug - I wanted to reply to your paragraph about o...   Oct 2 2007, 11:15 AM
- - djellison   For stereo to work - you either have to have a ver...   Oct 2 2007, 11:27 AM
|- - JRehling   [...]   Oct 2 2007, 05:40 PM
|- - ngunn   QUOTE (JRehling @ Oct 2 2007, 06:40 PM) W...   Oct 2 2007, 08:04 PM
- - ngunn   OK this is getting off topic and I won't keep ...   Oct 2 2007, 11:56 AM
- - AndyG   Thirty Thousand Metres Via A Plastic Bag The abo...   Oct 2 2007, 12:47 PM
- - djellison   The envelope itself is arguably the easy part. Bu...   Oct 2 2007, 12:55 PM
- - jamescanvin   OK a few simulations of camera coverage. Two came...   Oct 2 2007, 02:19 PM
- - djellison   Now that's cunning - and even though the data ...   Oct 2 2007, 02:44 PM
- - jamescanvin   Your wish is my command... In each of these I...   Oct 2 2007, 05:22 PM
- - jamescanvin   4) Three cameras all in landscape with elevations ...   Oct 2 2007, 05:43 PM
- - djellison   Well - I've just ordered three very VERY cheap...   Oct 2 2007, 08:31 PM
- - helvick   Stunning work with those coverage sims James. Th...   Oct 2 2007, 09:46 PM
- - djellison   Well - I think with these cheap cameras I've g...   Oct 2 2007, 10:22 PM
|- - JRehling   [...]   Oct 3 2007, 06:02 AM
|- - AndyG   QUOTE (djellison @ Oct 2 2007, 11:22 PM) ...   Oct 3 2007, 08:57 AM
- - ElkGroveDan   If Helvick can't come up with another unit, I ...   Oct 2 2007, 11:12 PM
- - djellison   Someone else can drown their cameras intentionally...   Oct 3 2007, 07:00 AM
- - djellison   A 90p thermistor's great...BUT....you need som...   Oct 3 2007, 09:15 AM
|- - JRehling   [...]   Oct 3 2007, 05:59 PM
|- - centsworth_II   QUOTE (JRehling @ Oct 3 2007, 01:59 PM) I...   Oct 4 2007, 10:31 PM
- - AndyG   Monitoring various sensors sounds exactly like a m...   Oct 3 2007, 10:02 AM
- - volcanopele   Someone suggested donating a Treo. There might be...   Oct 4 2007, 10:37 PM
- - helvick   Re Treo's and other potential offerings. They ...   Oct 5 2007, 12:13 AM
|- - ElkGroveDan   QUOTE (helvick @ Oct 4 2007, 04:13 PM) Re...   Oct 5 2007, 04:12 AM
|- - Greg Hullender   QUOTE (helvick @ Oct 4 2007, 05:13 PM) . ...   Oct 5 2007, 11:51 PM
- - volcanopele   It is sad because I refuse to use a Windows Mobile...   Oct 5 2007, 12:30 AM
- - djellison   Will it work in the UK do you think? Quad/Tri band...   Oct 5 2007, 08:27 AM
|- - ElkGroveDan   QUOTE (djellison @ Oct 5 2007, 12:27 AM) ...   Oct 5 2007, 03:03 PM
- - djellison   Got my three very very cheap cameras and the polys...   Oct 5 2007, 04:38 PM
- - djellison   Well - my idea of a front-door peep hole lens to g...   Oct 5 2007, 09:06 PM
- - lyford   I have nothing to offer this project except encour...   Oct 6 2007, 03:24 AM
- - djellison   These crap 3 megapixel cameras will happily record...   Oct 6 2007, 11:00 AM
|- - JRehling   [...]   Oct 6 2007, 07:10 PM
|- - djellison   QUOTE (JRehling @ Oct 6 2007, 08:10 PM) I...   Oct 6 2007, 09:33 PM
- - paxdan   I have been following this thread pretty closely. ...   Oct 6 2007, 11:07 AM
- - djellison   Their wiki doesn't have many details on the ti...   Oct 6 2007, 02:29 PM
- - DEChengst   This sounds pretty exciting In my mind this can ...   Oct 8 2007, 05:19 PM
|- - djellison   QUOTE (DEChengst @ Oct 8 2007, 06:19 PM) ...   Oct 8 2007, 08:22 PM
- - nprev   Really! What kind of sensor is used to detect ...   Oct 9 2007, 03:27 AM
|- - ElkGroveDan   QUOTE (nprev @ Oct 8 2007, 07:27 PM) Real...   Oct 9 2007, 04:29 AM
|- - JRehling   [...]   Oct 9 2007, 05:34 AM
- - djellison   The 144.8 Mhz FM APRS kit arrived. I need to get ...   Oct 12 2007, 12:17 AM
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