At 02:59 PM 3/30/01 -0500, you wrote:
>A bend sensor would be perfect for your purpose, but I have never seen one
>longer than 4 or 5 inches.  I suppose you could use 2 or three of them in a
>row.  Shouldn't be difficult to monitor them with a PIC and some sort of
>simple output (a vibrating pager motor would be nice and private!).

Perhaps like these secretive folks?

http://www.spinalsensor.com/

"The Spinal Sensor tm posture trainer is a discreet lightweight
electronic device that monitors the wearer's spinal curvature and
gives real-time feedback (a gentle vibration) when their posture
needs correction."

Best regards,

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Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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Embedded software/hardware/analog  Info for designers:  http://www.speff.com
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