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 ")

Humanoid Robot's Muscles Biomimic Ours
'It is remarkable that the long leverages of their machines are in most cases actuated by a sort of sham musculature...' HG Wells, 1898.

Animatronic Robotic Baby Exposed
'The birth of Machine, my robot child...' - Henry Slesar, 1958.

China Deploys Robot Traffic Police
'The robot came up smooth and fast as a rocket...' - Harry Harrison, 1958.

Unusual Twist On Woman Dates Robot
'My hearing, vision and awareness went along with that excellent imitation of a young Adonis...' - Manly Wade Wellman, 1938.

 

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

Humanoid Robot's Muscles Biomimic Ours
'It is remarkable that the long leverages of their machines are in most cases actuated by a sort of sham musculature...'

Animatronic Robotic Baby Exposed
'The birth of Machine, my robot child...'

Beijing HaiDiLao Robotic Hotpot Restaurant Now Flavored By Artificial Intelligence
'Kantos Kan led me to one of these gorgeous eating places where we were served entirely by mechanical apparatus.'

Plants of the Future - What Should They Be Like
'He almost choked in his astonishment. Mashed potatoes and brown gravy!'

China Deploys Robot Traffic Police
'The robot came up smooth and fast as a rocket...'

Better Than Dune Chromoplastic? This Guy Might Have Done It
'But when Old Father Sun departs, the chromoplastic reverts to transparency in the dark.'

Gather, An AI Warehouse Inventory Drone Startup
'It extended three of its tiny arms sideways to lock onto the registration pins...'

China's Artificial Intelligence-Enhanced Education
'The grey gas not only cut off his vision, but also his other senses...'

Orbital Manufacturer 'Made in Space' Gets $73 Million NASA Contract
'Mass-produced in the orbiting factories...'

Soli Gesture Tech Will Be In Google Pixel 4
'I enjoy watching this way, but - He waved his hand and the circuit switched abruptly.'

Uber Eats Pairs Cars With Drones
Fresh grub? Let's hope they aren't delivering grubs.

Space-Based Solar Power Roundup
SF writers popularized and elaborated on this idea a generation before the first patents were filed.

Lost Language Meanings Found By Machine Learning
'The autopilot would need data before it could begin a translation...'

'Aerogel' Sheets For Martian Gardens
'Sealed to the ground along all the sides, Honey, he growled...'

France's 'Red Team' Of Science Fiction Authors
'They're the only experts we have.'

Dim The Sun With Stratospheric Controlled Perturbation Experiment
'Those twin volcanoes; d'ye see them, Mr. Renner?'

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.