View single post by ArizonaEvp
 Posted: Nov 26th, 2011 12:49 PM
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ArizonaEvp



Joined: Jun 26th, 2009
Location: Heart Of Arizona Indian Country, Arizona USA
Posts: 662
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clockdryve wrote: Ahh, Mike....I see you are (were) looking into Ultrasound.

That is my comment (XRayCam) at that link on youtube.

Small world isn't it?? LOL

I am looking into getting a ready made Ultrasonic receiver from eBay

http://www.ebay.com/itm/170646304739?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

There are 3 or 4 models up for sale...

If all else fails, I too am interested in listening to bats and the occasional multi-legged little buddies :-)



Nooooooooooooooooo!!!!   :scared:


Step away from the Buy it Now button  :laugh:


You can get an ultrasonic transducer for a few bucks online.....either new or used.   If you had an old dynamic mic,  you could replace the electret mic with the transducer.


Link to mouser electronics:


http://www.mouser.com/Search/Refine.aspx?Keyword=ultrasonic+transducer




You could build one from schematics:


http://pw1.netcom.com/~t-rex/BatDetector.html



If you wish to build one from a kit:


http://www.econvergence.net/batdet.htm


OR......


http://www.midnightscience.com/ultra-kits.html




I built one from a kit a couple of years back.  It works just peachy-keen.  I can hear bats clicking away.  I can hear mice - running water - rubbing your fingers together - etc.

Here's a pic of mine..............




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