ERT-300 / 張力計

henrylin424

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+ o, t) I: q$ v5 N8 T/ O& U網球拍線張力測試器ERT 300(開箱)
ERT 300 Manual
$ n  [0 \/ y' ]The right tension for every type of player
$ d1 s/ g" ]* p3 A
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)
DT determines the playing characteristics power and control.
Higher DT for more control / Lower DT for more power
8 w  m& p* c( N, u4 S, CNot recommended to play tennis when DT below 28
1 C9 e6 p5 |9 b3 XRestring the racquet when the DT-value has decreased by 10% to 20%
( [% W: P. v* |: \! A# [2 G6 e
Lo     DT 28-34      Defensive play / Club
Mid    DT 35-41      Dynamic,offensive play / Club,WTA
, W6 Z. g5 K) o3 AHi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
) U0 c0 z, F7 g" e. p! I) @* t* Z- z2 |Hi+    DT 47-54     Very fast,extremely aggressive play / ATP

Within the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.

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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Gamma ATS ERT 300 Tenniscomputer
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