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Ultrasonic whistle design needed

Ultrasonic whistle design needed

Ultrasonic whistle design needed

(OP)
I am trying to come up with a variable frequency whistle (pneumatic), part of a liquid atomizing test device.  Does anyone know a starting point for such old technology? Probably dealing with non-fundamental tones, but rather first harmonic or ?

RE: Ultrasonic whistle design needed

Perhaps you can contact http://www.fedsig.com/ for applications or leads.

RE: Ultrasonic whistle design needed

Hey jkftl,

What do you need a whistle for when atomizing?  Perhaps what you really are looking for is a way to atomize a liquid using ultrasonics?  If so, there are ways to make this happen using an ultrasonic transducer.  Check out www.uia.org or I have several other applicable links listed on my website, www.bright-engineering.com.

Charlie

RE: Ultrasonic whistle design needed

The whistle works and it is simple. The fundamental IS the
first harmonic, the second is 2X fr.

Check old patents.

<nbucska@pcperipherals.com>

RE: Ultrasonic whistle design needed

Another name for an ultrasonic whistle is a Galton Whistle.  Try doing a web or patent search using this term.

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