High-Temp Electronics For Venus Exploration, recent advances |
High-Temp Electronics For Venus Exploration, recent advances |
Mar 13 2013, 03:36 PM
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Member Group: Members Posts: 127 Joined: 20-April 05 Member No.: 291 |
(MOD NOTE: Started a new topic for this discussion to continue. Please remember the 'no sci-fi engineering' provision of rule 1.9. Have fun!)
Also, since I'm thinking about surface operations on Venus, the state-of-the-art in high temperature electronics has advanced quite far in the past decade. Its now possible to buy off the shelf chips from vendors designed to operate at the 250-300 C range. Meanwhile basic functionality has been tested at and beyond the temperatures needed for long-term surface operations on Venus: http://www.grc.nasa.gov/WWW/SiC/ http://www.gizmag.com/extreme-silicon-carb...ctronics/16410/ http://www.grc.nasa.gov/WWW/SiC/publicatio...Contact2010.pdf Another decade or so and a long-term Venus lander could be possible with (practically) off the shelf electronics! |
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Apr 8 2013, 06:34 AM
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#2
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Junior Member Group: Members Posts: 93 Joined: 21-January 13 Member No.: 6845 |
All the ideas are very strange, but NASA Glenn Research Center is already working on it.
http://www.lpi.usra.edu/meetings/ipm2012/pdf/1133.pdf Development of a High Temperature Venus Seismometer and Extreme Environment Testing Chamber A lander mission without camera is not a mission. One point is: Is it possible to have a CCD or MOSFET camera at 4500-500°C? |
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Apr 8 2013, 01:32 PM
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#3
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
A lander mission without camera is not a mission. Yes it is. Not all spacecraft can, should or must carry cameras. Would it be nice to take a more modern imaging suite to the surface of Venus? Obviously. There is still huge quantities of science to be done without one, however. |
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Apr 8 2013, 04:30 PM
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#4
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Junior Member Group: Members Posts: 20 Joined: 19-March 13 Member No.: 6897 |
Yes it is. Not all spacecraft can, should or must carry cameras. Would it be nice to take a more modern imaging suite to the surface of Venus? Obviously. There is still huge quantities of science to be done without one, however. It'd be useful to have a camera even for just a few minutes (during descent and on the surface) for situational awareness. It just needs to take a few pictures then can burn up. It would help tremendously to know exactly where on the surface of Venus your lander landed and what sort of soil or rock you landed on. Not needed for the long-term, though, like temperature, pressure, wind speed, and seismograph measurements would. A disposable camera is a good 80/20 solution for a lander (it's difficult to keep a camera cool, since heat can travel more easily through windows, for instance). I suppose an old tube-style camera may be workable at high temps. Interesting about the DOE electronic sensor package at 500C... And when you're talking about 350+C, the term is usually "brazing" not soldering. But yeah, the non-active portions of the circuit become basically just as difficult at these temps... |
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