Tech Briefs Magazine - August 2021 - MD-24

One variation of the innovation
nests the SMA tubes within a rotary ac -
tuator imparting several technical
benefits. Nest ed SMA tubes can de -
crease the length of the actuator while
achieving the same twist angle. For the
same actuator length, a nested configuration
of SMA tubes can multiply the
twist angle and improve the power
output.
A second variation utilizes SMA components
as transmission elements in a
ring drive gear to enable continuous
rotation in one direction. Previous similar
SMA actuators rotate in one direction
while heating and the other while
cooling, which can limit the output of
the rotary actuator. The innovation
developed by NASA allows for continuous
rotation in any direction, thereby
allowing the rotational output capability
to be independent from the amount
of cyclic angular twist provided by the
SMA tubes.
Despite the smaller footprint, the
SMA tubes achieve higher power density
and similar power output to larger actuators,
enabling new designs based on
compact actuators.
NASA is actively seeking licensees to comThe
rotary actuator uses nested tubes of SMAs to provide torque output or angular displacement.
mercialize this technology. Please contact
NASA's Licensing Concierge at AgencyPatent-Licensing@mail.nasa.gov
or call us
at 202-358-7432 to initiate licensing discussions.
Follow this link for more information:
https://technology.nasa.gov/patent/LEWTOPS-153.
Upcoming...
Webinar
Crucial
Considerations When Choosing the
Right Enclosure for Your Application
Tuesday, August 10, 2021 at 2:00 pm U.S. EDT
The ideal enclosure for your industrial application does exist, and making the right selection will help you overcome
mounting challenges, increase your flexibility when it comes to wiring, prevent unnecessary downtime, and even
decrease your energy consumption and utility costs. This 60-minute Webinar addresses crucial considerations
when specifying an enclosure for your equipment.
Speaker:
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Training & Development
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Rittal
Please visit www.techbriefs.com/webinar188
24
Cov
ToC
Motion Design, August 2021
https://technology.nasa.gov/patent/LEW-TOPS-153 http://www.techbriefs.com/webinar188 http://www.abpi.net/ntbpdfclicks/l.php?202108MDNAV

Tech Briefs Magazine - August 2021

Table of Contents for the Digital Edition of Tech Briefs Magazine - August 2021

Tech Briefs Magazine - August 2021 - Intro
Tech Briefs Magazine - August 2021 - Sponsor
Tech Briefs Magazine - August 2021 - Cov1
Tech Briefs Magazine - August 2021 - Cov2
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Tech Briefs Magazine - August 2021 - Cov3
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Tech Briefs Magazine - August 2021 - MD-Cov1
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