公开(公告)号：US07024922B1

公开(公告)日：2006-04-11

申请号：US09607324

申请日：2000-06-30

申请人： Noritoshi Nakagawa ,  Yasuhisa Sekiguchi ,  Kiyoto Maruoka ,  Jun Nishibayashi ,  Seigo Sakagami ,  Hiroshi Yoshinaga ,  Kaname Yamada

发明人： Noritoshi Nakagawa ,  Yasuhisa Sekiguchi ,  Kiyoto Maruoka ,  Jun Nishibayashi ,  Seigo Sakagami ,  Hiroshi Yoshinaga ,  Kaname Yamada

IPC分类号： G01N11/10

CPC分类号： G01N3/30 ,  G01N2203/0055 ,  G01N2203/0094 ,  G01N2203/0098

摘要： A viscoelastic characteristic value-measuring apparatus, using a split Hopkinson's bar, having an impact bar, input bar, and an output bar. The input bar has a first strain gauge and a second strain gauge. The output bar has a third strain gauge and a fourth strain gauge. The input bar and the output bar are made of a viscoelastic material, and a specimen is in between the input bar and the output bar. The length of said output bar is set to a range from 500 mm to 2500 mm both inclusive. The length of said input bar is set to a range from 1500 mm to 2500 mm both inclusive.

摘要翻译： 一种粘弹性特征值测量装置，使用分裂的霍普金森杆，具有冲击杆，输入杆和输出杆。 输入栏具有第一应变计和第二应变计。 输出杆具有第三应变仪和第四应变仪。 输入条和输出条由粘弹性材料制成，样品位于输入条和输出条之间。 所述输出杆的长度设定在500mm至2500mm的范围内。 所述输入条的长度设定在从1500mm到2500mm的范围内。

公开(公告)号：US06422952B1

公开(公告)日：2002-07-23

申请号：US09708500

申请日：2000-11-09

申请人： Kiyoto Maruoka ,  Noritoshi Nakagawa

发明人： Kiyoto Maruoka ,  Noritoshi Nakagawa

IPC分类号： A63B3700

CPC分类号： A63B37/0003 ,  A63B37/0074 ,  A63B37/12

摘要： A golf ball is composed of a core (1) and a cover (3) covering the core (1). The core (1) is composed of a cross-linked rubber whose Young's modulus lies in the range of 3O Mpa to 100 Mpa both inclusive and whose loss factor lies in the range of 0.01 to 0.45 both inclusive, when the Young's modulus and the loss factor are measured by a split Hopkinson's bar tester whose impact bar has a collision speed of 14.0 m/sec.

摘要翻译： 高尔夫球由芯（1）和覆盖芯（1）的盖（3）组成。 核心（1）由交联橡胶组成，其杨氏模量在30Mpa至100Mpa的范围内，其损耗系数在0.01至0.45的范围内，当杨氏模量和损耗 因子是通过一个分裂的霍普金森棒测试仪来测量的，其冲击杆的碰撞速度为14.0米/秒。