Scientists use vibrating windows to block noise

Posted on Sunday, May 06 2007 @ 21:01 CEST by Thomas De Maesschalck
Discovery reports scientists have found a way to block noises of roaring jets, car alarms, traffic and other things that can keep you awake at night:
A noise-negating method that thwarts vibration with vibration could be available for use in apartments, hotels and offices in five years.

"A window acts like a loudspeaker and a membrane. If you control the vibration of the window, you can control transmitted noise in such a way that it is not acting like a membrane or a loudspeaker," said Thilo Bein, head of the business unit for energy, environment and health at Fraunhofer Institute for Structural Durability and System Reliability LBF in Darmstadt, Germany.

To make windows work less like loudspeakers, engineers thicken the glass to double or even triple panes. But that can drive up the cost of construction. Ideally they'd like to stop the sound waves in their tracks.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

Loading Comments