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12:25 pm
July 13, 2013
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Okay, so a few questions regarding string tension and dynamic tension:
1. What's the difference between the two?
2. What effect does higher/lower dynamic tension have?
3. What sort of factors influence the dynamic tension?
Thanks in advance.
12:56 pm
February 15, 2011
Offline
Many thanks for your question.
I have never seen the phrase “dynamic tension” used in badminton stringing before. To borrow from elsewhere for my response
Stringbed stiffness (measured in DT – Dynamic Tension) is the major
parameter that determines the playing characteristics of a tennis racquet. This
value represents the force which is necessary to push down the stringbed for 1
cm in a contact area about the size of a tennis ball. The DT value is dependent
on a number of parameters: string pattern, string, tension, stringer, time point
of measurement and so on.
I think this is self explanatory. I consider a badminton frame too fragile to achieve such measurements and remember the measurement is based on a tennis ball size on the stringbed. I don't know of a machine that can measure this on a badminton racket and whether it is relevent.
You are best to stick with the tension of each individual string and form a good relationship with a stringer who gives you a reliable and consistent result, ensuring your racket plays to its optimum.
It's been documented before on this forum that higher string tension generally provides better control and lower tension generally more power. However there are restrictions to the lowest and highest tensions based on the strength of the frame, strength of the string, personal choice of the player. It is the intention that the players find the optimum from each i.e. power and control and that is the best tension for them with this racket at this moment in time.
The difficulty is that if the player improves, changes racket or string choice then it's possible that you need to re-test to find your new optimum.
Paul
1:29 pm
July 13, 2013
Offline Thanks for the detailed reply, Paul. I'm assuming there is a way to measure it because my stringer always leaves a little sticker on my racquets with the details of the stringing job, including the DT. Not entirely sure on how he measure it or how accurate the measurement is. Just curious is all.
1:37 pm
May 25, 2010
Offline Ask your stringer next time, it could be a calculated guess?
Would love to know more. Agree with Paul that this term isn't used much in badminton, not in the UK at least. Thanks for the interesting question though!
Badminton Gives Me A Purpose In Life – To Serve Others
I'd Rather Be Playing Badminton…………..
12:41 pm
July 13, 2013
Offline 
Alrighty, so I went into my stringer to pick up my Nanoray Z-Speed (which he's technically not supposed to give to me until Friday…) and asked him about the whole DT thing. He uses one of those tennis computers after stringing to measure the DT and to double check the stringing tension, both of which are then printed on a sticker (along with string type, who strung the racquet up and the date) which goes on the racket shaft. He was slightly less clear on exactly what effect DT had on play.
6:36 pm
May 25, 2010
Offline I maybe wrong here but surely putting a badminton racket on a tennis computer will damage the racket or strings? Tennis strings are much thicker than badminton strings and I’m guessing the computer applies some kind of force to the strings to get a reading.
If it was me, as I think DT is irrelevant, I would ask to speak have a DT test. I’m guessing their theory is that if it “fails” the DT test then they re-string it again?
All that aside, thank you very much for posting a follow up reply! Interesting to see how other stringers operate
Badminton Gives Me A Purpose In Life – To Serve Others
I'd Rather Be Playing Badminton…………..
11:45 pm
February 15, 2011
Offline Considering none of the professional players use this method or ask for this method i am very surprised and dubious about this.
I have no idea what “computer” this stringer is using to test the DT and to be honest cannot see whether its relevant.
We all agree that there will inevitably be tension loss from any string once it's strung. The very dynamic of a string is to expand and contract on impact otherwise we would all be playing with non responsive cricket bats. String is therefore made to stretch to perform.
The important aspect of working with a stringer is that you have a good relationship and receive a consistent and good quality restring every time. This then allows you to play with confidence that you have exactly what you want in your rackets.
Paul
12:19 am
July 13, 2013
Offline Hard to say just how consistent my stringer is at this point because I'm still in that stage of experimenting with different strings and tensions trying to find my sweet spot. I've been pretty happy with their work though and they are rather helpful in recommending different strings and what not. In any case, I don't have any other real options near by.
7:10 pm
February 15, 2011
Offline It's going to be interesting to hear more as your testing develops. Congratulations on deciding to test different strings and tensions to find the best option for you with your current rackets right now.
I've nothing against stringers using different techniques and passing on their thoughts and beliefs no matter whether they appear right or wrong. The important part is that they look after you as a player, advise you well and continue to provide a consistently good and accurate stringing service.
I was at a club last night and overhead a player discussing not getting enough from his racket. One player suggested he string the players racket and then told him he has 30lbs tension in his racket. At this point I walked away because I could tell what was going to happen and didn't want to get involved – it wasn't my business too. But I'm pretty sure this young lad is going to sell this guy a completely wrong re-string. So this, coupled with not very good technique is going to lead to disaster.
I will ask questions next week and see what the outcome is. So, I'll nip this in the bud early. Sadly yet again this is a case where what's good for one player doesn't always fit another especially when there is no consideration for anothers technique, etc.
Paul
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