Noisy motors hushed

May 29th, 2009 - 12:13 pm ICT by IANS  

Sydney, May 29 (IANS) A researcher has come up with a way to hush the noisy whine of air conditioners, industrial equipment, even robots and other devices relying on electric motors.
Greg Heins, who will be receiving his doctoral degree this week from Charles Darwin University (CDU) for the pioneering research, provided quieter machinery with greater efficiency.

Heins identified the imperfections of common electric motors by measuring their operational noises, then applied various methods which included modifying the structure of electric signals that fed the motor, effectively cutting noise by a third.

“Combining various approaches is a clever way to compensate for noisy motors,” said Heins, who chose the project after his involvement with CDU sponsored Desert Rose solar car and the Desert Rose High Performance Electric Vehicle.

His research offers enormous potential for equipment that uses electric motors from large building cooling systems through to robotics.

The ultra-smooth motors powering future robotics could also benefit along with many industrial and medical applications, said a CDU release.

“Surgeons remotely operating on a patient from the other side of the world could feel the dexterity of a needle puncturing their clients’ skin, all thanks to the sensitive movement of motors on their controls,” he said.

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