Welcome Guest ( Log In | Register )

6 Pages V  « < 4 5 6  
Reply to this topicStart new topic
High-Temp Electronics For Venus Exploration, recent advances
post Aug 17 2015, 08:30 PM
Post #76

Director of Galilean Photography

Group: Members
Posts: 801
Joined: 15-July 04
From: Austin, TX
Member No.: 93

Wow, an imager running at 600*F? Even if UV only that is one hell of an accomplishment. Hazcams via blacklight!

Space Enthusiast Richard Hendricks
"The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke
Mother Nature is the final inspector of all quality.
Go to the top of the page
+Quote Post
post Sep 3 2015, 09:39 PM
Post #77


Group: Members
Posts: 409
Joined: 13-November 14
From: Norway
Member No.: 7310


Inside the 14-ton, stainless steel, 3- by 6-foot chamber, temperatures can soar beyond 900 degrees Fahrenheit, hotter than the surface of Venus. At the same time, pressure can reach nearly 100 times the weight of Earth’s atmosphere at sea level.


In addition to scientific research, GEER also will be used to test sensors and equipment, such as high-temperature electronics, that one day could enable long-duration surface missions to Earth’s mysterious sister planet.


EDIT: see it has already been mentioned - guess it is ready now?

Go to the top of the page
+Quote Post
post Jun 16 2016, 09:56 AM
Post #78


Group: Members
Posts: 8
Joined: 5-September 08
Member No.: 4329

Swedish tech lab KTH is working to develop high-temperature silicon carbide electronics for ambient temperature operation at the surface of Venus.


They're pretty ambitious - aiming to demonstrate digital CPUs, amplifiers, gas sensors, seismometers.

From the PDF document linked above:

The project started January 2014 and has eight
PhD students in the different work packages.
Our present bipolar technology has been scaled
to smaller transistors, and self‐aligned nickel
contacts have been developed. Four new
integrated circuit designs were made for
different parts of the lander electronics: CMOS
circuit test set, a 4‐bit microprocessor, RF
transistors for the radio transceiver and a
prototype pixel sensor for the imaging. Most of
these have been fabricated by the PhD students
in the KTH Myfab clean room, some are still in
progress. Preliminary testing and modeling
show operation up to 550 C, sufficient for the
Venus target. A first demonstration has been
made of capacitive inertial sensing at high
temperatures; gas sensors have been annealed
at 500 C for 300 h; photodiodes sensitive in the
near UV range (200 to 400 nm) have been tested
up to 550 C. Power sources have been
identified, and passive components like
inductors have been tested to 500 C.
Go to the top of the page
+Quote Post
post Jul 6 2016, 06:21 PM
Post #79

Senior Member

Group: Members
Posts: 1350
Joined: 13-February 10
From: British Columbia
Member No.: 5221

Interesting article I found today: a Sterling engine with lithium fuel? http://www.bbc.com/future/story/20160705-t...weve-ever-built
Go to the top of the page
+Quote Post
post Aug 23 2016, 02:55 PM
Post #80


Group: Members
Posts: 8
Joined: 26-August 13
Member No.: 6994

ROSES-16 Amendment 25 releases the new program element C.24 The Hot Operating Temperature Technology Program.

The Hot Operating Temperature Technology (HOTTech) program supports the advanced development of technologies for the robotic exploration of high-temperature environments, such as the Venus surface, Mercury, or the deep atmosphere of Gas Giants. The goal of the program is to develop and mature technologies that will enable, significantly enhance, or reduce technical risk for in situ missions to high-temperature environments with temperatures approaching 500 degrees Celsius or higher. It is a priority for NASA to invest in technology developments that mitigate the risks of mission concepts proposed in response to upcoming Announcements of Opportunity (AO) and expand the range of science that might be achieved with future missions. Note that this HOTTech program element is not soliciting hardware for a flight opportunity.

HOTTech is limited to high temperature electrical and electronic systems that could be needed for potentially extended in situ missions to such environments. NASA seeks to maximize the benefits of its technology investments and consequently technologies that offer terrestrial benefits, in addition to meeting needs of planetary science. While specific technology readiness levels are not prescribed for the HOTTech program, proposers are reminded that the goal of the program is to mature technologies so they can be proposed as part of a selectable mission concept or technology demonstration to a flight AO with reduced risk. It is the responsibility of the proposer to describe how their proposed technology development effort addresses the goals of enabling or enhancing future mission capability or reducing risk and how the technology will be matured for a flight opportunity as part of an integrated system. Efforts that focus on advancing the technology readiness level (TRL) of a system composed of multiple existing technologies at various TRLs are allowed under this opportunity.

Notices of Intent are requested by September 28, 2016, and the due date for proposals is November 23, 2016.
Go to the top of the page
+Quote Post

6 Pages V  « < 4 5 6
Reply to this topicStart new topic


RSS Lo-Fi Version Time is now: 23rd January 2017 - 11:06 PM
Please read the Forum Rules and Guidelines before posting.

Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.