Tiniest Microphone Inspired By Fly

This tiny (2mm wide) microphone mimics the hearing mechanism of the Ormia ochracea fly. University of Texas Austin researchers had admired the fly's ability to pinpoint the location of crickets; this is another excellent example of how biomimicry can aid engineers.


(Microscope photo of fly-inspired microphone)
This is a top-side view in a microscope photograph of the
biologically inspired microphone. The tiny structure rotates
and flaps about the pivots (labeled), producing a voltage across
the electrodes (labeled).

The parasitoid fly Ormia ochracea has the remarkable ability to locate crickets using audible sound. This ability is, in fact, remarkable as the fly’s hearing mechanism spans only 1.5 mm which is 50× smaller than the wavelength of sound emitted by the cricket. The hearing mechanism is, for all practical purposes, a point in space with no significant interaural time or level differences to draw from. It has been discovered that evolution has empowered the fly with a hearing mechanism that utilizes multiple vibration modes to amplify interaural time and level differences.

Here, we present a fully integrated, man-made mimic of the Ormia’s hearing mechanism capable of replicating the remarkable sound localization ability of the special fly. A silicon-micromachined prototype is presented which uses multiple piezoelectric sensing ports to simultaneously transduce two orthogonal vibration modes of the sensing structure, thereby enabling simultaneous measurement of sound pressure and pressure gradient.

As Technovelgy readers know, I'm really enamored of The Scarab, a 1936 short story by Golden Age scientifiction master Raymond Z. Gallun, which describes a tiny UAV, a beetle-shaped remote-controlled flying robot. The tiny robot Scarab of course had even tinier ear microphones:

There it studied its surroundings, transmitting to its manipulator, far away now, all that it heard through its ear microphones and saw with its minute vision tubes.

If you found this interesting, be sure to read the full description in the article at Sound source localization inspired by the ears of the Ormia ochracea or the material in the article at KurzweilAI.

Scroll down for more stories in the same category. (Story submitted 7/21/2014)

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 ( 0 )

Related News Stories - (" Robotics ")

Las Vegas Humans Ready To Strike Over Robots
'A worker replaced by a nubot... had to be compensated.' - John Twelve Hawks, 2014.

Somnox Sleep Robot - Your Sleepytime Cuddlebot
Science fiction authors are serious about sleep, too.

VirtualHome: Teaching Robots To Do Chores Around The House
'Just what did I want Flexible Frank to do? - any work a human being does around a house.' Robert Heinlein, 1956.

Artificial Sensory Neurons For Prosthetics, Robots
Great for humans and robots!

 

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

Las Vegas Humans Ready To Strike Over Robots
'A worker replaced by a nubot... had to be compensated.'

You'll Regrow That Limb, One Day
'... forcing the energy transfer which allowed him to regrow his lost fingers.'

Elon Musk Seeks To Create 1941 Heinlein Speedster
'The car surged and lifted, clearing its top by a negligible margin.'

Somnox Sleep Robot - Your Sleepytime Cuddlebot
Science fiction authors are serious about sleep, too.

Real-Life Macau or Ghost In The Shell
Art imitates life imitates art.

Has Climate Change Already Been Solved By Aliens?
'I had explained," said Nessus, "that our civilisation was dying in its own waste heat.'

First 3D Printed Human Corneas From Stem Cells
Just what we need! Lots of spare parts.

VirtualHome: Teaching Robots To Do Chores Around The House
'Just what did I want Flexible Frank to do? - any work a human being does around a house.'

Messaging Extraterrestrial Intelligence (METI) Workshop
SF writers have thought about this since the 19th century.

Nanorobots Roam Your Bloodstream, Cleaning It
Too bad they won't have lasers, though...

Galini 3D Printed Sleeping Pod Tiny Houses
'The houses are prefabricated units...'

MIT Boffins Create Psychopath AI On Purpose
There's a lesson in this for neural net AI engineers everywhere.

Skin Electronics 3D Printed
'June's body is a tracery of lambent lines, like some arcane capillary circuitry...'

Artificial Sensory Neurons For Prosthetics, Robots
Great for humans and robots!

China Uses Artificial Intelligence To Grade Student Papers
Looks like the City Fathers are starting to take over China's education system.

Electronic Tongues Will Rule The Kitchen
'Install taste buds in the end of one tentacle...'

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.