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TEGA (Thermal Evolved Gas Analyzer), an apparent problem
Guest_Zvezdichko_*
post May 31 2008, 06:48 PM
Post #201





Guests
Hello,

According to the publication here:
http://www.space.com/missionlaunches/08053...ion-update.html


The glitch seems to be a short circuit in a filament in a part of the instrument that ionizes the vapors before they are sent to the detector...

Does that mean that it's directly related to the DSC oven?
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Posts in this topic
- Zvezdichko   TEGA (Thermal Evolved Gas Analyzer)   May 31 2008, 06:48 PM
- - Airbag   Paraphrased from the "Thermal and Evolved Gas...   Jun 15 2008, 02:22 PM
- - Airbag   TUCSON, Ariz. – One of the ovens on NASA's Pho...   Jun 17 2008, 02:14 AM
|- - climber   QUOTE (Airbag @ Jun 17 2008, 04:14 AM) Ai...   Jun 17 2008, 06:17 AM
- - Juramike   Space.com article says the first TEGA soil sample ...   Jun 17 2008, 04:25 AM
- - jmjawors   As they said in the briefing today, remember that ...   Jun 17 2008, 05:08 AM
- - jamescanvin   And now for the bad news... The doors on TEGA o...   Jun 20 2008, 05:43 PM
|- - elakdawalla   QUOTE (jamescanvin @ Jun 20 2008, 09:43 A...   Jun 20 2008, 09:58 PM
- - jamescanvin   Animation of the attempted opening of oven 5   Jun 20 2008, 06:10 PM
|- - mhoward   QUOTE (jamescanvin @ Jun 20 2008, 11:10 A...   Jun 20 2008, 06:14 PM
|- - ugordan   I was afraid this partial opening would occur on o...   Jun 20 2008, 06:18 PM
|- - ngunn   QUOTE (mhoward @ Jun 20 2008, 07:14 PM) V...   Jun 20 2008, 07:56 PM
- - jamescanvin   No. I believe that the doors are spring loaded. A ...   Jun 20 2008, 06:17 PM
- - James Sorenson   looking at James's animation, to me it looks l...   Jun 20 2008, 06:35 PM
- - Tman   They stopped even a bit earlier than the first one...   Jun 20 2008, 06:41 PM
- - Juramike   How comfortable would they be trying to use the ar...   Jun 20 2008, 06:42 PM
|- - Tman   QUOTE (Juramike @ Jun 20 2008, 08:42 PM) ...   Jun 20 2008, 07:15 PM
- - elakdawalla   Bill Boynton said in an earlier interview that the...   Jun 20 2008, 06:42 PM
- - Juramike   Could soil clumps be jamming up the hinges?   Jun 20 2008, 06:44 PM
- - James Sorenson   Why does the door on the left in James's anima...   Jun 20 2008, 06:52 PM
- - Gsnorgathon   Those springs are awfully cold, and may have been ...   Jun 20 2008, 06:56 PM
- - akuo   This looks worrying. Can the scoop actually reach ...   Jun 20 2008, 07:34 PM
- - Tomek   the best way to open this doors is send more then...   Jun 20 2008, 07:52 PM
|- - 1101001   QUOTE (Tomek @ Jun 20 2008, 12:52 PM) the...   Jun 20 2008, 07:54 PM
|- - Tomek   QUOTE (1101001 @ Jun 20 2008, 08:54 PM) T...   Jun 20 2008, 08:03 PM
- - elakdawalla   There isn't an actuator on the doors. Just a ...   Jun 20 2008, 07:59 PM
|- - mhoward   IIRC, in a recent call Ray mentioned that the arm ...   Jun 20 2008, 08:10 PM
|- - Tman   QUOTE (elakdawalla @ Jun 20 2008, 09:59 P...   Jun 20 2008, 08:19 PM
|- - Paul Fjeld   QUOTE (elakdawalla @ Jun 20 2008, 02:59 P...   Jun 21 2008, 02:50 AM
|- - Tman   QUOTE (Paul Fjeld @ Jun 21 2008, 04:50 AM...   Jun 21 2008, 07:54 AM
|- - Paul Fjeld   Great paper, Tman! A demonstrated accuracy o...   Jun 21 2008, 10:03 AM
|- - Paul Fjeld   On Mark's SSI SOL 25 page, near the bottom, he...   Jun 21 2008, 11:12 AM
||- - ugordan   QUOTE (Paul Fjeld @ Jun 21 2008, 01:12 PM...   Jun 22 2008, 02:58 PM
|- - Tman   QUOTE (Paul Fjeld @ Jun 21 2008, 12:03 PM...   Jun 21 2008, 05:41 PM
- - Zvezdichko   This was totally unexpected. Maybe we should wait ...   Jun 20 2008, 08:05 PM
- - jamescanvin   That's right, it's a once only deal, now t...   Jun 20 2008, 08:05 PM
|- - tanjent   QUOTE (jamescanvin @ Jun 21 2008, 04:05 A...   Jun 21 2008, 04:41 AM
- - hendric   Oh dear. My guess is that the doors can lift the ...   Jun 20 2008, 08:07 PM
- - Ken90000   It troubles me that neither door opened. Can they...   Jun 20 2008, 08:27 PM
|- - jamescanvin   QUOTE (Ken90000 @ Jun 20 2008, 09:27 PM) ...   Jun 20 2008, 08:35 PM
|- - centsworth_II   QUOTE (Ken90000 @ Jun 20 2008, 03:27 PM) ...   Jun 20 2008, 08:50 PM
|- - PaulM   QUOTE (Ken90000 @ Jun 20 2008, 09:27 PM) ...   Jun 20 2008, 09:00 PM
- - imipak   I'm sure the possibility of sample clogging th...   Jun 20 2008, 08:31 PM
- - Juramike   [Arms waving wildly here...] Is it at all possibl...   Jun 20 2008, 08:36 PM
- - fredk   Yikes. I first thought soil under the hinges like...   Jun 20 2008, 08:44 PM
- - ngunn   A random observation - the door that opened best w...   Jun 20 2008, 09:00 PM
- - ZenDraken   imipak: Agreed, they must have tested the doors e...   Jun 20 2008, 09:00 PM
|- - ngunn   QUOTE (ZenDraken @ Jun 20 2008, 10:00 PM)...   Jun 20 2008, 09:35 PM
- - peter59   The doors of TEGA are angled at around 45 degrees ...   Jun 20 2008, 09:14 PM
- - ZenDraken   Note for future missions: Bring a tool kit! ...   Jun 20 2008, 10:04 PM
|- - jmknapp   QUOTE (ZenDraken @ Jun 20 2008, 06:04 PM)...   Jun 20 2008, 10:08 PM
- - jamescanvin   Did they not say in the teleconference that they w...   Jun 20 2008, 10:08 PM
- - jmjawors   I think they said oven 5 as well, both today and i...   Jun 20 2008, 10:09 PM
- - elakdawalla   Thanks. I wasn't able to listen to the teleco...   Jun 20 2008, 10:10 PM
- - jamescanvin   I'm glad somebody else heard 5. Because I star...   Jun 20 2008, 10:17 PM
- - Reckless   hi all just a long shot as I don't know the l...   Jun 20 2008, 11:05 PM
|- - centsworth_II   QUOTE (Reckless @ Jun 20 2008, 07:05 PM) ...   Jun 21 2008, 01:48 AM
- - Shaka   O.K., brain-bashing time. 1. The first oven doors ...   Jun 20 2008, 11:53 PM
|- - centsworth_II   Ice disappears from, is not added to, surfaces in ...   Jun 21 2008, 01:46 AM
|- - Aussie   QUOTE (Shaka @ Jun 21 2008, 12:53 AM) Doe...   Jun 21 2008, 01:53 AM
- - Juramike   Machines are beautiful things. Once commanded the...   Jun 21 2008, 03:53 AM
|- - 1101001   QUOTE (Juramike @ Jun 20 2008, 08:53 PM) ...   Jun 21 2008, 01:15 PM
- - Stu   I'm just catching up on this story after being...   Jun 21 2008, 07:16 AM
- - imipak   Those oven doors look awfully small and flimsy nex...   Jun 21 2008, 11:59 AM
|- - jamescanvin   QUOTE (imipak @ Jun 21 2008, 12:59 PM) ED...   Jun 21 2008, 01:47 PM
|- - centsworth_II   QUOTE (imipak @ Jun 21 2008, 06:59 AM) Se...   Jun 21 2008, 03:23 PM
|- - Paul Fjeld   Okay. Maybe I am reading too much into the header....   Jun 21 2008, 03:29 PM
|- - ugordan   That imaging sequence was designed before the door...   Jun 21 2008, 03:32 PM
|- - Paul Fjeld   Right. I just checked Emily's page and Door #5...   Jun 21 2008, 03:49 PM
|- - ugordan   Sol 26 images started to come down and it doesn...   Jun 21 2008, 05:25 PM
|- - Paul Fjeld   QUOTE (ugordan @ Jun 21 2008, 01:25 PM) S...   Jun 21 2008, 06:24 PM
- - SteveM   For those in a pessimistic mood, here are the mini...   Jun 21 2008, 09:23 PM
|- - tanjent   Success is better defined by the taste it leaves i...   Jun 22 2008, 04:04 AM
|- - jamescanvin   QUOTE (SteveM @ Jun 21 2008, 10:23 PM) Fo...   Jun 22 2008, 09:49 AM
|- - fredk   QUOTE (jamescanvin @ Jun 22 2008, 09:49 A...   Jun 22 2008, 04:00 PM
|- - centsworth_II   QUOTE (fredk @ Jun 22 2008, 11:00 AM) I s...   Jun 22 2008, 04:23 PM
- - jamescanvin   QUOTE (ugordan @ Jun 22 2008, 03:58 PM) S...   Jun 22 2008, 04:09 PM
|- - ugordan   QUOTE (jamescanvin @ Jun 22 2008, 06:09 P...   Jun 22 2008, 04:10 PM
- - imipak   This card-carrying pessimist is wondering if surfa...   Jun 22 2008, 07:54 PM
|- - Littlebit   What about the actuator itself: The soleniod that...   Jun 23 2008, 04:07 AM
- - Ipparchus   Why don`t they just use another oven? let...   Jun 23 2008, 07:01 AM
|- - centsworth_II   QUOTE (Ipparchus @ Jun 23 2008, 03:01 AM)...   Jun 23 2008, 07:24 AM
|- - fredk   QUOTE (Ipparchus @ Jun 23 2008, 07:01 AM)...   Jun 23 2008, 03:20 PM
|- - ugordan   I imagine the team is scrambling to test door open...   Jun 23 2008, 03:31 PM
- - Stu   Good TEGA article here...   Jun 23 2008, 01:50 PM
- - dvandorn   I'm imagining pretty much the reverse, Fred. ...   Jun 23 2008, 03:28 PM
|- - centsworth_II   QUOTE (dvandorn @ Jun 23 2008, 11:28 AM) ...   Jun 23 2008, 04:18 PM
|- - Paul Fjeld   What about having only one of the #5 doors fully o...   Jun 23 2008, 04:32 PM
- - centsworth_II   I can't wait to see -- after mulling over all ...   Jun 23 2008, 04:36 PM
- - Paul Fjeld   I'd fall off my chair if they used any of them...   Jun 23 2008, 07:16 PM
- - centsworth_II   Hey! Whats' going on here? I check Emily...   Jun 24 2008, 07:56 AM
- - akuo   No, that's still the dirt on the door #4. See ...   Jun 24 2008, 08:20 AM
- - TheChemist   Well, Emily says that enough sample is left for de...   Jun 24 2008, 08:24 AM
- - jamescanvin   The way I read the recent activity. Sol 25: Acqui...   Jun 24 2008, 08:47 AM
- - akuo   Nobody seems to have mentioned this bit from The P...   Jun 24 2008, 09:23 AM
- - Bill Harris   Certainly, there is a design spec to ensure that e...   Jun 24 2008, 11:43 AM
- - helvick   Young's Modulus, which is one of the measureme...   Jun 24 2008, 12:02 PM
|- - centsworth_II   QUOTE (helvick @ Jun 24 2008, 08:02 AM) I...   Jun 24 2008, 02:48 PM
- - Bill Harris   So much for the idea that the springs had sproinge...   Jun 24 2008, 03:02 PM
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