精品熟女60老妇av免,被强迫各种姿势侵犯n,边吃奶边摸叫床刺激a片,国产性一乱一性一伧

全國服務(wù)咨詢熱線:

18668966307

當(dāng)前位置:首頁  >  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):295

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

国产精品国产亚洲精品看不卡 | 成人激情五月天| 亚洲精品一区二区三区中文字幕| av国産精品毛片一区二区小说| 国产suv精品一区二区| 狮王的巨大挺进体内h | 老熟女草bx×| 被老外添嫩苞添高潮NP电影| 性肥胖BWBWBW| 欧美成人精品第一区| 国产99久久久国产精品免费| 中文字幕一区二区精品区| 国产性一乱一性一伧| 色翁荡熄小说全文| 一晚上两次做着做着就软了| 亚洲 自拍 另类小说综合图区| 免费AV在线看| 国产无套粉嫩白浆内射在线观看| 国产娇小粉嫩学生免费网站| 日韩一区二区三区高清电影| 国产欧美日韩丝袜高跟鞋| 久久精品国产男包| 777米奇色狠狠888俺也去乱| 久久99精品久久只有精品| 一本加勒比HEZYO无码A片| 久久精品一区二区三区| 花房姑娘免费观看全集| 久久精品免费一区二区喷潮| 国产精品美女一区二区三区| 玩弄白嫩少妇xxxxx性| 国产50部艳色禁片无码| 午夜理理伦电影a片无码| sao货腿张开ji巴cao死我| 国产成人亚洲精品无码AV大片| 五十度黑电影| 四虎永久在线精品免费网址| 一本一道人人妻人人妻ΑV| 久久精品国产亚洲av水果派| 小洁和公h文翁17| 美女脱个精光露出奶胸的照片视频| jizzjizz少妇亚洲水多|