On Fri, 01 Feb 2008 07:08:02 -0600, Brian Whatcott
wrote:

But a thin aluminum strip, 3 or 4 inches long, strapped securely to
the rigging, with the strain gage measuring the stretch of the strip
which is transmitted from the wire would do the job perfectly well.
Low noise amps, data acquisition PC and you're in business.

It might be easy to epoxy the aluminum strip to a rigging wire. Heat
will break the bond without damage to the wire.

Casady