Acoustic Frequency Comb Measures Up

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KirtB
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Acoustic Frequency Comb Measures Up

Post by KirtB » Tue Jul 25, 2017 9:50 am

Acoustic Frequency Comb Measures Up

"An 'acoustic frequency comb,' which produces sound at a precise set of frequencies, has been made by physicists at the University of Cambridge in the UK. The device, which is an acoustic analogue of an optical frequency comb, works at ultrasonic frequencies. With further improvements, the device could be used for imaging, metrology and materials testing. Conventional optical frequency combs emit a spectrum of light made of thousands of discrete peaks at evenly spaced frequencies, like the teeth ..." http://physicsworld.com/cws/article/news/2017/jan/24/acoustic-frequency-comb-measures-up
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