ERT-300 / 張力計

henrylin424

網球拍線張力測試器ERT 300(開箱)
ERT 300 Manual
1 ~' @, S. E5 mThe 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)
, e' C: ]# q. i! ~6 BDT determines the playing characteristics power and control.
& V- N4 _/ d5 C( X, [$ M; j7 VHigher DT for more control / Lower DT for more power
! J: [' h+ x5 R6 e& j  qNot 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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( g9 @$ E5 \& z7 ~- `" X. pLo     DT 28-34      Defensive play / Club
" }/ ]5 H* g+ S4 v, O; ~) L: Z! @Mid    DT 35-41      Dynamic,offensive play / Club,WTA
# k  m& L- V0 C, T& l, I' w2 dHi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
Hi+    DT 47-54     Very fast,extremely aggressive play / ATP

, _6 r1 S6 Q: p2 V6 Z- EWithin 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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1 C7 k$ v' j. H0 \( @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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4 F3 d- X4 E: D8 S; c4 y. EGamma ATS ERT 300 Tenniscomputer
9 J; x1 C! t5 k$ f( \2 F* h1 aTW上售價169美金,海外運費36美金