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Subject:
Re: Radar guns
From:
Reagan Cole <[log in to unmask]>
Reply To:
Reagan Cole <[log in to unmask]>
Date:
Thu, 12 Apr 2007 16:34:02 -0400
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

Sand grain speed, eh?  Optical velocimetry or ultrasound doppler would work, radar is not a good choice because of the non-conductive nature of sand grains.  Comb through some of the relevant journals Review of Scientific Instruments, Measurement Science and Technology, and some trade magazines: Sensors, Electronics Design News  etc.  That sure is an interesting problem you've got there, I'd love to work on it!
Reagan Cole
Exhibits Engineer
NC Museum of Life and Science
Durham, NC

-----Original Message-----
>From: Phillip Keck <[log in to unmask]>
>Sent: Apr 12, 2007 4:09 PM
>To: [log in to unmask]
>Subject: Radar guns
>
>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>Hi,
>
>We're trying to find a way to measure the speed of something like sand
>as it flows down an inclined plane.  We were thinking of maybe trying a
>radar gun at the bottom of the plane pointed up at the sand, but we're
>kind of concerned about it...well, not working.  Does anyone have any
>experience with this type of thing, or have any suggestions?
>
>Thanks,
>Phil 
>Museum of Science and Industry, Chicago
>
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More information about the Informal Science Education Network and the
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