Friday 25 April 2014
News updated at 3:42 AM IST
Weather
Max: 34.6°C
Min : 22.8°C
In Bangalore
Generally cloudy

New device to scare birds away from planes

London, Jan 21, 2013, PTi:

Researchers have developed a new device that fires low frequency sound waves, below the range of human hearing, to scare birds away from flight paths. Bird strikes worldwide cause over a billion dollars in damage every year, and put passengers and crew at risk.

To scare avians away, a new device will fire low-frequency sound waves at flocks as they near busy flight paths, New Scientist reported.

Noise makers are often used to scare birds away from airports or contaminated waterways. But loud sounds also annoy any humans within earshot.

The new system developed by Technology International, based in Laplace, Louisiana, aims to deter birds using infra-sound, below the range of human hearing.


 The Avian Infra-sound Non-lethal Denial System has a passive infra-sound detector that listens for an approaching flock, and activates a series of rotary subwoofers that generate high-intensity, but low-frequency sound. The device worked well in tests.

Thunderstorms also emit lots of infra-sound, which may be why birds are
naturally averse to it, said Abdo Husseiny, the firm’s CEO.

Husseiny added that the system could be used to keep pigeons away from public squares, or divert flocks away from wind turbines. He said that the equipment should be commercially available
within two years.

Infra-sound or low-frequency sound is lower in frequency than 20 Hertz or cycles per second, the “normal” limit of human hearing.

Go to Top

Photo Gallery
A fan offers sweet to a poster of Sachin Tendulkar on his 41st birthday, in Bikaner on Thursday...

A fan offers sweet to a poster of Sachin Tendulkar on his 41st birthday, in Bikaner on Thursday...

A physically challenged boy shows his voter identity card after casting vote for the Lok Sabha...

A physically challenged boy shows his voter identity card after casting vote for the Lok Sabha...

Elderly women outside a polling booth before casting their votes in Malda, West Bengal on ...

Elderly women outside a polling booth before casting their votes in Malda, West Bengal on ...

Voters show their identity cards as they wait to cast votes for Lok Sabha elections at a village...

Voters show their identity cards as they wait to cast votes for Lok Sabha elections at a village...

Bollywood actor Shah Rukh Khan displays the indelible ink mark on his finger after casting his ...

Bollywood actor Shah Rukh Khan displays the indelible ink mark on his finger after casting his ...

Catholic nuns show their inked finger after casting their vote for the Lok Sabha polls in ...

Catholic nuns show their inked finger after casting their vote for the Lok Sabha polls in ...

Malayalam film actor Mammootty presents a memento to prominent Malayalam writer and Janapith ...

Malayalam film actor Mammootty presents a memento to prominent Malayalam writer and Janapith ...

Women voters show their voter identity cards as they wait in queues to cast votes for Lok Sabha ...

Women voters show their voter identity cards as they wait in queues to cast votes for Lok Sabha ...

Bollywood legend Amitabh Bachchan, his wife Jaya Bachchan,  son Abhishek Bachchan, and daughter...

Bollywood legend Amitabh Bachchan, his wife Jaya Bachchan, son Abhishek Bachchan, and daughter...

Industrialist Mukesh Ambani with wife Nita Ambani and sons showing ink marked fingers after ...

Industrialist Mukesh Ambani with wife Nita Ambani and sons showing ink marked fingers after ...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bangalore - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523