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From: Simian on 26 Apr 2010 07:39
Krusty wrote:

> Simian wrote:
>
> > Krusty wrote:
> > >
> > > Because I need something that'll make them bark, i.e. another dog
> > > barking.
> >
> > Ah. In that case, I'd probably go with a nice single frequency 40KHz
> > transducer as loud as can be afforded (you can get them in multi-kW
> > forms). Would also keep the adjoining wall clean.
>
> I've looked for 'something to generate ultrasonic sound' in the past &
> failed miserably. Got any links? Nothing on RS that I can find.

Google: high power 40khz ultrasonic transducer.

They're used in ultrasonic cleaning baths, probably quite tricky to
couple, I would have thought - I wasn't being entirely serious.
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