在线观看免费av网_成人无码www免费视频_丰满岳妇乱一区二区三区_国产精品涩涩涩视频网站_亚洲av无码成人黄网站在线观看

購(gòu)買激光粒度儀需要考慮什么?

來(lái)源:

作者:


 

最近很多客戶打來(lái)電話購(gòu)買激光粒度儀,但是不知道需要考慮什么指標(biāo)?濟(jì)南微納小編今天就為大家介紹一下。

Recently a lot of customer calls to buy laser granulometer, but don't know what indicators need to be considered? Jinan micro-nano small make up today is to introduce for everybody.
 

如果你打算買一臺(tái)激光粒度儀的話你要參考以下五點(diǎn):

If you are going to buy a laser particle size instrument you want to refer to the following five:

第一、測(cè)量范圍:分為納米級(jí)和微米級(jí)

First, the measuring range: can be divided into nanometer level and micro level

第二、測(cè)試方法:干法和濕法

Second, test methods: dry method and wet method

第三、測(cè)試原理:米氏散射和動(dòng)態(tài)光散射

Third, test principle: mie scattering and dynamic light scattering

第四、激光器:一般分為半導(dǎo)體激光器和HE-NE氣體激光器,半導(dǎo)體激光器優(yōu)點(diǎn)使用前無(wú)需預(yù)熱,使用壽命長(zhǎng),缺點(diǎn)是發(fā)光不穩(wěn)定,光斑可能不圓,氣體激光器使用前應(yīng)先預(yù)熱,夏季在15分鐘冬季在30分鐘左右,優(yōu)點(diǎn)是光斑圓,發(fā)光穩(wěn)定。

Fourth, the laser: generally divided into semiconductor laser and HE - NE gas laser, semiconductor laser advantage without preheating before use, service life is long, the disadvantage is that light is not stable, light may not round, gas laser should be preheated before use, summer in winter in about 30 minutes, 15 minutes advantage is light round, light stability.

第五、探測(cè)器的數(shù)量,也叫測(cè)量通道,不同的激光粒度儀探測(cè)器的環(huán)數(shù)也不一樣,測(cè)量的精度也不一樣,建議用環(huán)數(shù)多,排列角度大的
Fifth, the number of detector, also called measurement channels, different particle size the ring number of detectors is different also, the precision of the measurement is different also, suggest use the ring number, large arrangement Angle

精品蜜臀久久久久99网站| 人妻少妇精品中文字幕av| 色婷婷欧美在线播放内射| 欧美性大战xxxxx久久久√| 亚洲日韩精品国产一区二区三区| 性一交一乱一伦| 丰满少妇高潮惨叫久久久| 乱精品一区字幕二区| 美丽人妻被按摩中出中文字幕| 99国产精品久久久久久久日本竹| 免费又黄又爽又猛的毛片| 亚洲av美国av产亚洲av图片| 越南女子杂交内射bbwbbw| 国产真实夫妇交换视频| 樱花草在线播放免费中文| 在线视频网站www色| 人妻有码中文字幕| 国产h视频在线观看| 国产午夜精品一区理论片| 久久精品国产亚洲av麻豆蜜芽| 亚洲午夜爱爱香蕉片| 少妇高潮潮喷到猛进猛出小说| 尤物永久网站| 国产精品成人精品久久久| 亚洲欧美精品suv| 亚洲va欧美va天堂v国产综合| 欧美大胆a级视频免费| 久久综合给合综合久久| av区无码字幕中文色| 国产免费av片无码永久免费| 亚洲av综合久久九九| 国产一区二区精品久久岳| 51精品国产人成在线观看| av鲁丝一区鲁丝二区鲁丝三区| 野花社区在线观看视频| 久久婷婷丁香七月色综合| 久久久久亚洲精品| 国产日产久久高清欧美一区| 亚洲精品国偷拍自产在线观看蜜臀| 999久久欧美人妻一区二区| 美女网站免费福利视频|