>Date:    Mon, 22 Sep 1997 16:34:28 -0500
>From:    Craig Niederberger <craign@GODOT.UROL.UIC.EDU>
>Subject: pressure sensor
>MIME-Version: 1.0
>Content-Type: TEXT/PLAIN; charset=US-ASCII
>
>Hi all,
>
>I'm working on a PIC application to compute average and peak pressures in
>a biomedical application, and can't seem to locate sensors--I was
>wondering if anyone could help me out.  The sensors themselves need to be
>relatively flat--they will measure pressure between human skin and an
>object, and thus can't protrude too much lest they do damage to the human
>whose skin is being measured.  I've calculated that the pressures to be
>measured will be in the range of 0-20 psi.  I've looked high and low on
>the web for the last couple of days to no avail.  Can anyone help?
>
>Thanks,
>Craig
>

Have you thought about working with Force Sensing Resistors (FSRs)?  They
basically change resistance proportional to the force on them.  I am not
sure if they are linear (my guess is not), and I am not sure about their
accuracy.

The only information I have is from a company called Interlink Electronics.
The last phone number I had was: (805) 684-2100.  They may have something on
the web, but I have not looked.  Hope this helps.

--- Lou