ERT-300 / 張力計

henrylin424

網球拍線張力測試器ERT 300(開箱)
ERT 300 Manual
The right tension for every type of player

6 Y& D7 m* t9 u; G- [Dynamic Tension DT ( DT-value) / DT is the string bed stiffness
DT is ball power in kilo pond required to depress the string bed 1 cm at the sweet spot(ball impact)
8 G! M, t+ N; ?6 TDT determines the playing characteristics power and control.
Higher DT for more control / Lower DT for more power
Not recommended to play tennis when DT below 28
4 p: h) ~" r2 V4 WRestring the racquet when the DT-value has decreased by 10% to 20%
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; V/ m1 r% h0 L% A& G1 LLo     DT 28-34      Defensive play / Club
" w: O/ j$ V/ ^# T+ T/ k7 YMid    DT 35-41      Dynamic,offensive play / Club,WTA
Hi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
; w- s1 r8 _* G8 O8 N7 sHi+    DT 47-54     Very fast,extremely aggressive play / ATP
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- G& g+ Y. ]+ K4 g% \- n5 FWithin the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.

# f- s; z2 g4 L4 Q, }在stringforum左方DT database 選擇你的球拍,即可查到相關線種掉磅chart.

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