<html><div>You must break the "static friction" first in order to get a reliable reading.</div> <br> <div>At 10:59 PM 3/23/99 -0500, you wrote:</div> <div>></div> <div>>Up weight is measured by placing a likely weight on the key, pressing</div> <div>>the key down to let-off and using your fist hit the action lightly to</div> <div>>break the static friction of the action parts.  </div> <br> <br> <div>>This means that up-weight, and perhaps down-weight, are meant to</div> <div>>correlate to sliding friction, not static friction.  Is this</div> <div>>a generally accepted definition?  Or do some of you measure</div> <div>>up and down weight without tapping the action to break the</div> <div>>static friction?  I would like to know because I am considering</div> <div>>the design of a device to automatically measure touch weights</div> <div>>for each note, and it won't be right if I don't have the</div> <div>>the definition exactly right.</div> <div>></div> <div>>-Bob Scott</div> <div>> Ann Arbor, Michigan</div> > <br> <b>Vince<br> </b><i><<a href="mailto:vince@byu.edu" eudora="autourl">mailto:vince@byu.edu</a>><br> </i>Visit the web page for the Pacific Northwest Conference at: <br> <<a href="http://www.pnwpianoconf.com/" eudora="autourl">www.pnwpianoconf.com</a>> </html>