General > General Technical Chat

ultra sonic transducers

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Zero999:
1) Plenty of people here are unconvinced about the efficacy of ultrasound at stopping a dog barking. The idea appears to be a crazy one to many,

2) It's possible to build one but why? It's cheaper to buy one and if it doesn't work, it's likely you'll be able to return it, for no more than the price of postage. This is more of a professional engineering forum, than a hobbyist one. If the best solution is to buy off the shelf, then that's the advice you'll get.

If you must go DIY, go for a tweeter, audio amplifier, a digital signal synthesis IC and microcontroller.

EPAIII:
Have you considered an alligator for a pet? A friend of mine did that for exactly the same reason. Except he had TWO neighboring dogs which barked all the time.

I bet that dog would be the first to go.

pete g:
didn't know about the professional, hobbiest bit. so thanks to all. i'll try elswhere.

Zero999:

--- Quote from: pete g on April 20, 2024, 11:02:47 pm ---didn't know about the professional, hobbiest bit. so thanks to all. i'll try elswhere.

--- End quote ---
Don't get me wrong, we do have hobbyists here and encourage amateur electronics.  It's just we will tell you when your idea won't work and if it's easier to just buy it. In many cases, asking a question indicates the poster lacks the experience to make it.

I do encourage you to visit other forums. You'll mostly get 555 timer circuits, based on the data sheet. You could spend $$$ and time on this and it most likely won't work.

Here are some tweeters similar to those used in ultra sonic repellers.

https://www.cricklewoodelectronics.com/Piezo-Tweeter-150W-max.html?gad_source=1&gclid=Cj0KCQjw8pKxBhD_ARIsAPrG45nlnPJMNdaZ4InSWETJapUdWX6wZxtdpwoLmg5MfvVGFyH9SuHxAhgaAg70EALw_wcB
https://www.ebay.co.uk/itm/355572011302?chn=ps&_ul=GB&mkevt=1&mkcid=28

I suppose learning won't work is part of the learning experience, but why not listen to experts who've done this professionally? It will save you time and money. I suppose not listening, then failing and realising you had good advice is also part of the learning curve.

CatalinaWOW:
I would also suggest that you need to supply the non electronics expertise needed.  Can't suggest transducers without knowing what power level is needed, which in turn requires knowing how loud the sound needs to be.

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