ERT-300 / 張力計

henrylin424

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4 G( m+ u9 c$ r% P% Y* ], B網球拍線張力測試器ERT 300(開箱)
ERT 300 Manual
The right tension for every type of player
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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.
" J# \; s' R. x% ^8 tHigher DT for more control / Lower DT for more power
Not recommended to play tennis when DT below 28
Restring the racquet when the DT-value has decreased by 10% to 20%
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( H3 c7 _+ b2 \3 v- mLo     DT 28-34      Defensive play / Club
Mid    DT 35-41      Dynamic,offensive play / Club,WTA
3 v- i9 P- F* l! o/ y; {Hi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
1 ~, ~+ }2 Q' ]" O$ {0 pHi+    DT 47-54     Very fast,extremely aggressive play / ATP
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Within the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.
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9 V8 t9 c( w* u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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