MIT Robotic Fish Is Self-Contained, Autonomous, Fast

A robotic fish created by grad student Andrew Marchese at MIT's Distributed Robotics Laboratory is described as the first self-contained autonomous soft robot that is capable of rapid body motion. No more languorous sinuosity (as much as we enjoy it) - this fish is too quick to catch!


(Soft robotic fish from Distributed Robotics Laboratory )

The robotic fish was built by Andrew Marchese, a graduate student in MIT’s Department of Electrical Engineering and Computer Science and lead author on the new paper, where he’s joined by Rus and postdoc Cagdas D. Onal. Each side of the fish’s tail is bored through with a long, tightly undulating channel. Carbon dioxide released from a canister in the fish’s abdomen causes the channel to inflate, bending the tail in the opposite direction.

Each half of the fish tail has just two control parameters: the diameter of the nozzle that releases gas into the channel and the amount of time it’s left open. In experiments, Marchese found that the angle at which the fish changes direction — which can be as extreme as 100 degrees — is almost entirely determined by the duration of inflation, while its speed is almost entirely determined by the nozzle diameter. That “decoupling” of the two parameters, he says, is something that biologists had observed in real fish.

“To be honest, that’s not something I designed for,” Marchese says. “I designed for it to look like a fish, but we got the same inherent parameter decoupling that real fish have.”

The fish can perform 20 or 30 escape maneuvers, depending on their velocity and angle, before it exhausts its carbon dioxide canister. But the comparatively simple maneuver of swimming back and forth across a tank drains the canister quickly. “The fish was designed to explore performance capabilities, not long-term operation,” Marchese says. “Next steps for future research are taking that system and building something that’s compromised on performance a little bit but increases longevity.”

Regular Technovelgy readers know about my fascination for robotic fish. In his 2002 story Slow Life, science fiction author Michael Swanwick writes about robot fish who help explore distant worlds:

The Mitsubishi turbot wriggled, as if alive. With one fluid motion, it surged forward, plunged, and was gone. Lizzie switched over to the fishcam.

Black liquid flashed past the turbot’s infrared eyes.

Straight away from the shore it swam, seeing nothing but flecks of paraffin, ice, and other suspended particulates...
(Read more about the Mitsubishi turbofish)

Via MIT

Scroll down for more stories in the same category. (Story submitted 3/16/2014)

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 - (" Robotics ")

MIT's Robotic Cheetah Runs Free - And Frolics In The Grass
THEY sent A SLAMHOUND on Turner's trail- William Gibson, 1986.

Flying Robot Has An Arm
Drones with arms. Well, one arm.

T-Mobile Sues Huawei Over Button Pushing Robot Idea From The 1930's
'Not the slightest change in their working betrayed the fact that they were now being directed by a machine instead of human beings.'- Schachner and Zagat, 1931.

Dyson 360 Eye Robot Vacuum Cleaner
'It vacuum-cleaned... or polished, consulting tapes in its idiot memory to decide which.'- Robert Heinlein, 1956.

 

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.

 

 

 

 

 

Current News

'Hello, Computer!' Intel's Core M Catches Up To Scotty
'Well, isn't that quaint!'

Visual Speech Recognition - When Will HAL Read Lips For Real?
Automating lip reading.

MIT's Robotic Cheetah Runs Free - And Frolics In The Grass
'THEY sent A SLAMHOUND on Turner's trail...'

Flying Robot Has An Arm
Drones with arms.

Strati 3D Printed Car
'You rode in it - you know how good it is.'

Tracking Spinning Space Junk
'Loose nuts and bolts... had been accumulating in Earth orbit'

Baidu Kuaisou Dune Poison Snooper Chopsticks
'Unobtrusive inspections with... snoopers... Will it be chaumas - poison in the food?'

Crystalized Light Created At Princeton
'It will be matter, matter made of light...'

The Amazing Gravity-Assisted Journey Of Rosetta
'...We used the [moon's] attraction to give us additional starting speed'

AirDog Auto-Follow Drone Captures Your Awesomeness
'Tight mid-shot and pull out on but behind me...'

Dell's Venue 8 7000 Tablet With RealSense Depth-Mapping
Focus on any part of a picture later.

Google's Cartographer Backpack For Indoor Mapping
'He reached to unsnap the cartograph from his belt.'

T-Mobile Sues Huawei Over Button Pushing Robot Idea From The 1930's
'Not the slightest change in their working betrayed the fact that they were now being directed by a machine instead of human beings.'

Hayabusa-2 Asteroid Cannon Strategy From 1950's SF Novel
'Fire streaked in a thin line from the muzzle of a cannon-like tube...'

Dyson 360 Eye Robot Vacuum Cleaner
'It vacuum-cleaned... or polished, consulting tapes in its idiot memory to decide which.'

First 3D Printer In Space?
'It can be mass-produced only in the orbiting factories...'

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.