ERT-300 / 張力計

henrylin424

  p! v0 N# g) W
5 r* ~* c3 R$ `$ K網球拍線張力測試器ERT 300(開箱)
9 L7 `$ J/ q" e5 \0 E' J6 ~5 VERT 300 Manual
7 a0 }4 s/ a& CThe right tension for every type of player

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)
* I! l& d  b) i4 [8 BDT determines the playing characteristics power and control.
+ X+ O/ k1 Q1 D# m: `$ t" CHigher 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%

" Y  }& s7 |( B: R5 W7 BLo     DT 28-34      Defensive play / Club
Mid    DT 35-41      Dynamic,offensive play / Club,WTA
Hi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
6 R3 A% r. c' @$ W1 {Hi+    DT 47-54     Very fast,extremely aggressive play / ATP
3 ^" R3 u0 I! }4 o. ^% S' k
Within the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.
& S% t" I# T2 _; _
; }! H% `% b; p; d在stringforum左方DT database 選擇你的球拍,即可查到相關線種掉磅chart.
  e) y6 ~# {1 ^, c- N: z; M% H
. y+ s) H4 o+ w: F$ O1 K

henrylin424

回復 henrylin424 的帖子
: @, b! B4 j& i6 q7 `" V
1 Z7 ^% `& a3 S* o1 P3 \: ?Gamma ATS ERT 300 Tenniscomputer
. Z( e6 c/ V" L0 w8 WTW上售價169美金,海外運費36美金
, C. f! O* {! E! J6 z1 n* l