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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Jun 19 2013, 02:49 PM
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#2
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Member Group: Members Posts: 127 Joined: 20-April 05 Member No.: 291 |
Sorry to keep shining rays of optimism here, but circling back to Raytheon's claims, it looks like its more than pie-in-the sky. Here is a 2012 paper describing testing they did with a SiC CMOS at 400C:
http://www.raytheon.co.uk/rtnwcm/groups/rs...emp_article.pdf. So components that could theoretically function at ambient temperature on the (high plateau/peak) surface of Venus are in labs now. Assuming they're reliable, its just a question of time before they're commercially available. Finally - if you want something to add to your reading list, I stumbled upon this fantastic overview of the 2013 state-of-the art in high temperature SiCs |
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Jun 19 2013, 02:57 PM
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#3
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Junior Member Group: Members Posts: 20 Joined: 19-March 13 Member No.: 6897 |
dtolman:
Ah, behold the motivating power of proving someone wrong on the Internet! Thank you. The Raytheon paper is quite useful to me. http://www.raytheon.co.uk/rtnwcm/groups/rs...emp_article.pdf. (Still, power consumption at temperature is pretty high...) |
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Jun 25 2013, 12:25 PM
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#4
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Junior Member Group: Members Posts: 20 Joined: 19-March 13 Member No.: 6897 |
dtolman: Ah, behold the motivating power of proving someone wrong on the Internet! Thank you. The Raytheon paper is quite useful to me. http://www.raytheon.co.uk/rtnwcm/groups/rs...emp_article.pdf. (Still, power consumption at temperature is pretty high...) The Raytheon paper makes no mention to how long it can last at 400C. I've heard that the insulating layer doesn't last terribly long at those temperatures. The fact that no mention is made of length of time is a bad sign. |
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