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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Mar 13 2013, 05:50 PM
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Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
Having electronics operate at a higher temperature works 2 ways to make for a longer operating time on the surface.
Firstly, it takes longer to heat them up more, and also, the rate of heat flow into the probe decreases as the temperature difference between inside and outside decreases. Additionally, having a wider temperature operating range might allow the use of different/better phase change heat absorbents. We could be seeing quite a jump in operating time that's possible. |
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