国产免费内射又粗又爽密桃视频,(原创)露脸自拍[62P],av无码久久久久久不卡网站,久久人妻少妇嫩草AV蜜桃

全國(guó)服務(wù)咨詢熱線:

18668966307

當(dāng)前位置:首頁(yè)  >  技術(shù)文章  >  HP652 The table tennis wave hardness tester-詳情介紹

HP652 The table tennis wave hardness tester-詳情介紹

更新時(shí)間:2024-07-16      點(diǎn)擊次數(shù):274

The table tennis wave hardness tester is suitable for testing the Vickers hardness of various table tennis balls. This machine is also known as a Rockwell hardness tester, table tennis ball Rockwell hardness tester, table tennis ball hardness tester, wave hardness tester, and wave hardness tester

Table tennis is a sport that combines skill and speed. Players need to have accurate control over the quality of the ball, and hardness is one of the key indicators. The table tennis hardness tester can objectively test the hardness characteristics of the ball, allowing players to better grasp the hardness of the ball; Balls with different hardness have different characteristics, some are more suitable for quick attacks, while others are more suitable for stable power. So as to choose the ball that suits oneself and improve the level of the game.

The table tennis ball hardness tester meets the standard:

Meet the requirements of relevant items in the GB/T 20045-2005 standard

Measurement principle of table tennis ball hardness tester:

During the test, place the table tennis ball on the testing platform, apply a fixed 50N load, automatically read the hardness A within 15 seconds, and return the indenter to its original position; Rotate the ball smoothly 180 °, test the hardness B using the same method, then rotate it 90 degrees to test the hardness C at the joint, and then calculate the hardness difference between the two readings of hardness A and hardness B

Functional characteristics of table tennis wave hardness tester:

1. The touch screen display displays real-time force values, displacement deformations, and automatically saves data; The display interface can display the test curve in real time; Test real-time parameters such as speed and deformation.

2. Using a high-precision, fully digital speed control system and precision reducer, the precision screw pair is driven for testing, achieving a wide range of adjustment of the test speed and smooth operation.

3. Adopting high-precision sensors and professional measurement and control software, with high testing accuracy, wide testing range, and simple operation.

4. Equipped with a standard micro printer, it can print results at any time and collect multiple test results

5. At the end of the experimental process, provide the measurement results of the hardness value. The process is time-saving and labor-saving, reducing the interference of subjective factors and effectively improving the reliability of testing.

Technical parameters of table tennis wave hardness tester:

Measurement range: 0-100 N

Resolution: 0.1N

Accuracy: ± 0.5%

Test speed: (1-300) mm/min adjustable

Sample holder: copper ball holder with a diameter of 30 ± 0.5mm

Load capacity: 50N ± 0.5N

Test displacement accuracy: 0.01mm

Upper pressure plate: 100mm pressure head

Parallel upper and lower pressure plates:<0.025mm

Lower pressure plate diameter: 100mm

Test space: 100mm vertically,

External dimensions: 430 x 350 x 710mm

Mass: 45kg

Power supply: 220V, 50Hz

Table tennis wave hardness tester configuration

Standard configuration: host, testing aids, micro printer.



全國(guó)統(tǒng)一服務(wù)電話

0531-85809007

電子郵箱:2289528882@qq.com

公司地址:山東濟(jì)南市槐蔭區(qū)新沙工業(yè)園三街17號(hào)

業(yè)務(wù)咨詢微信

国产免费内射又粗又爽密桃视频,(原创)露脸自拍[62P],av无码久久久久久不卡网站,久久人妻少妇嫩草AV蜜桃

              av福利在线播放| 性高湖久久久久久久久AAAAA| julia中文字幕久久精品| 中国av一区二区| 97久久精品午夜一区二区| 欧美精品videos| 精品久久久久久无码人妻热| 少妇被粗大猛烈进出96| 日韩一区二区三区乱码| aaaaaa在线观看免费高清| 久久东京热av| 高清av一区二区三区| 成人免费毛片立即播放| 成人一区二区电影| 黄色一级片免费播放| 99人妻国产人妻| 大地8高清免费观看| 人妻av免费| 亚洲av午夜精品一区二区三区亚裔| 精品久久久久久中文字幕 | 黑巨茎大战俄罗斯美女| 农村少妇久久久久久久| freeporn性欧美| 懂色一区二区| 259luxu高跟黑色丝袜系列| jizz欧美性27| 感受大海的时刻完整版在线观看| 白洁被五个人玩一夜| 亚洲综合久久av| 韩国在线三级电影| 国产精品福利网| 凹凸国产熟女精品视频APP| 玩弄人妻少妇视频| 精品视频一区二区三区| 日韩伦理片一区二区| 99国产精品一区二区女王调教| 日本片在线观看| 日韩精品视频在线观看视频 | 国产精品swag| 国产免费又粗又猛又爽桃花影视| 亚洲欧美日韩成人在线|