Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Robo-Bat Has Shape Memory Alloy Joints

A robo-bat with shape memory alloy jointed limbs and smart material alloy muscles is being built by North Carolina State University researchers.

Gheorghe Bunget, a doctoral student in mechanical engineering at NC State, and his advisor Dr. Stefan Seelecke looked to nature [for inspiration]. "We are trying to mimic nature as closely as possible," Seelecke says, "because it is very efficient. And, at the MAV scale, nature tells us that flapping flight – like that of the bat – is the most effective."

According to the NC State press release, the fully assembled robotic 'bat' skeleton rests easily in the palm of your hand and, at less than 6 grams, feels as light as a feather.


(Robo-bat with shape memory alloy joints)

The research team is using a special shape memory alloy that is super-elastic for the joints of the robo-bat. The material offers a full range of motion, but always returns to its original gliding position. Smart materials are also being used for the 'muscles' on the robotic bat. Seelecke explains:

"We're using an alloy that responds to the heat from an electric current. That heat actuates micro-scale wires the size of a human hair, making them contract like 'metal muscles.' During the contraction, the powerful muscle wires also change their electric resistance, which can be easily measured, thus providing simultaneous action and sensory input. This dual functionality will help cut down on the robo-bat's weight, and allow the robot to respond quickly to changing conditions – such as a gust of wind – as perfectly as a real bat."

It's interesting that science fiction writers also chose to mimic nature in the earliest descriptions of robotic micro air vehicles - MAVs. I was thinking in particular about the extraordinary Scarab flying insect robot from Raymond Z. Gallun's The Scarab, published in Astounding Stories magazine in 1936.

The Scarab rubbed its hind legs together, as flies will do when at rest. Then, apparently satisfied that it was in condition, it unfolded the coleoptera-like plates over its wings. With a buzz that any uninformed person would have mistaken for that of a beetle, it started out on its journey.
(Read more about the scarab flying insect robot)

For a different take on the idea of a robotic bat by a different research team, take a look at the COM-BAT Robotic 'Bat' On Order From UM . The development process for this tiny MAV emphasizes the senses of a robotic bat.

Update: 21-Oct-2016: The first time I read about the idea of a shape memory alloy was in Samuel R. Delany's 1966 novel Babel-17; see the entry for tensile memory polarized matter. End update.

From Robo-Bats With Metal Muscles May Be Next Generation of Remote Control Flyers (press release) via Physorg.

Scroll down for more stories in the same category. (Story submitted 7/8/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Surveillance ")

Small Town Wants 60 License Plate Readers
'the registration number which the traffic control automatically photographed as she left the controlway...' - Robert Heinlein, 1940.

Pixy Flying Selfie Drone From Snap
'It hovered behind him like a large tame bee.' - Karen Traviss, 2004.

Answer To Teacher Spying And Student Surveillance? ParanoidLinux!
'ParanoidLinux is an operating system that assumes that its operator is under assault from the government...' - Cory Doctorow, 2008.

Facebook Unexpectedly Turns Away From Sfnal Face Recognition
'... the imprint of her image on the telephoto cell.' Schachner and Zagat, 1931.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

NAVER Labs Haptic Device 2.0 Robot vs. IKEA
'... the two pairs of waldoes in the screen followed in exact, simultaneous parallelism.'

Spaceships Should Last So Long
'THE SPACE VESSEL was traveling swiftly… For over five thousand years they had Voyaged on and on.’

Shine On, Portable Wind Turbine
'Sometimes a man has a windmill on his roof...'

Amazing Indoor Robotic Drones Mimic Dolphins and Whales
'They circled the vast audiences, dancing, twittering, chirping...'

Space Station Shutters
'The sun-quilt was a patchwork of colors and materials on the inward side, but silvered on the outward side...'

Tiny Mining - Extract Precious Industrial Minerals From Your Own Body
'Jim, I saw them reduce four of my doctors and nurses into those little cubes!'

MIT Proposes Space Bubbles To Combat Climate Change, Misses The Point Of Space Bubbles
'Fats Jordan was hanging in the center of the Big Glass Balloon, hugging his guitar to his massive black belly above his purple shorts..'

Tianjin Solar Vehicle From Hanergy (2022) Looking Like Heinlein's (1940)
'When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.'

Study Reveals Effect Of Space Travel On The Brain
'... the brain is no longer subjected to the accustomed pull, and it expands slightly in all directions.'

Sky Cruise Nuclear Powered Flying Hotel Concept
'... the huge air-freighter Jupiter.'

The Mojo Smart Contact Lens Experience
'... the lens displays would be useless without a wearable computer to do the graphics.'

Small Town Wants 60 License Plate Readers
'the registration number which the traffic control automatically photographed as she left the controlway...'

Lightyear 0 World's First Production-Ready Solar Car
'It could maintain a steady six miles per hour...'

AI Robots Excel At Trash Sorting And Recycling
'Then they press one of these here thirteen buttons...'

Could Increased Space Rocketry Damage The Ozone Layer?
'...without burning a single hydrocarbon molecule to injure the diseased atmosphere any further.'

Dyson's Secret Household Robots
'...work a human being does around a house.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.