ERT-300 / 張力計

henrylin424

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

Dynamic Tension DT ( DT-value) / DT is the string bed stiffness
: I- s+ @# D9 Z$ Q, M, U% q, ]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
Not recommended to play tennis when DT below 28
+ E9 ^# w3 y) R, E! ^Restring the racquet when the DT-value has decreased by 10% to 20%
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& c1 m0 v- O6 S+ ALo     DT 28-34      Defensive play / Club
Mid    DT 35-41      Dynamic,offensive play / Club,WTA
% x- c$ t3 @5 T% i+ L2 fHi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
! w9 [. |+ c- C' V  F2 VHi+    DT 47-54     Very fast,extremely aggressive play / ATP

3 ^% H5 b( A( x# F: H( @Within the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.

* ~( o! C/ m& G2 O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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8 @7 c- I# @! s* o) P2 G2 rGamma ATS ERT 300 Tenniscomputer
TW上售價169美金,海外運費36美金
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