Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!fluke!strong
From: strong@tc.fluke.COM (Norm Strong)
Newsgroups: sci.electronics
Subject: Re: Ultrasonic distance finder
Message-ID: <11808@fluke.COM>
Date: 18 Oct 89 21:29:28 GMT
References: <2900UD130322@NDSUVM1>
Sender: news@tc.fluke.COM
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 16

In article <2900UD130322@NDSUVM1> UD130322@NDSUVM1.BITNET writes:
}
}  I am thinking of building an ultrasonic distance measuring device for
}an electronics project.  Stanley has one on the market for about $30. It
}is the size of a pack of cigarettes and has a max. range of around 32 feet.
}They have a model with a max range closer to 50 feet for $50-$60.
}
}  A few questions come to mind when thinking about building one of these.
}I am assuming these work in the ultrasonic range. Is this correct?
}Can the transmitter also be used to receive the reflected signal?
}Are there any chips available that would greatly simplify the construction?

I'd recommend a tape measure.  Much more accurate; much less expensive.
-- 

Norm   (strong@tc.fluke.com)