Results 18 to 29 of 29
04-01-2005, 05:44 AM #18
how about you attach some scales to one end of the string, tension it, and then clamp everything off. So you go: fixed point, scales, string, fixed point.
Then you just have to record the reading on the scales at whatever time intervals you like.
You're stuck without your scales for that time though.
04-01-2005, 05:49 AM #19Originally Posted by Neil Nicholls
04-01-2005, 05:52 AM #20Originally Posted by Neil Nicholls
04-01-2005, 05:58 AM #21Originally Posted by kwun
you shouldn't assume what others are assuming
I was expecting it to move, but not a lot, and unless someone buys a tension measuring device (I think there was a link to a web-site that sold them in the thread about Stringmeter) I dunno what else to suggest.
04-01-2005, 06:01 AM #22Originally Posted by SWC_Ant
Not necessarily roof and floor though.
04-01-2005, 06:26 AM #23Originally Posted by Neil Nicholls
heres another quick drawing of another possible method, where the weight is put on the floor so that on the first day, 25lb would stretch the string to just touch the floor. to measure, lift weight up until string is slack, and measure string
04-01-2005, 06:38 AM #24Originally Posted by SWC_Ant
or about 0.5mm per lb
I think that's small enough to ignore
04-01-2005, 08:35 PM #25Originally Posted by Neil Nicholls
04-04-2005, 03:32 AM #26
so.. does anybody have any followup comments/questions/results on this?
11-09-2005, 02:18 PM #27
I don't think that measuring string stretch will tell us anything important. Perhaps a different method should be considered.
Ex: After stringing a specific racquet with a specific string at specific tension, place a hook on the center strings [and perhaps do this from other locations] and measure the force needed to displace the strings 5 mm. Then do this after playing every 2 hours [or any other reasonable time period] and measure the force needed to displace the strings 5mm again.
This should measure the loss of tension over time and playing. Perhaps a running commentary of the difference in feel as this happens would be good too. Also- how about bouncing a known bird from a 2 meter height and measuring the height of the bounce at each displacement? I think this experiment would be so time consuming, it would need many players to participate using the same measuring technique.
I love science- it may even improve our game.
11-09-2005, 03:33 PM #28Originally Posted by TamesBK
I would like to know how much would Yonex R&D is welling to pay for this set of data and analysis. The money should go to BC and the member who contribute to this experiment.
Any suggestion is welcome here.
10-24-2012, 10:35 PM #29
sorry for reviving this post, although i don't fully understand everything here, but i do think that the 2nd method TamesBK is going to use is maybe going to work since not everyone has the ability to hit the sweetspot every time we hit so i do think that hitting the middle will work, just my thought
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