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

亚洲精品久久久久久久蜜桃臀| 日本大骚b视频在线| 久久亚洲av成人无码电影a片| 少妇又色又爽又高潮| 国产精品免费无遮挡无码永久视频| 曰韩免费无码av一区二区| 亚洲av无码一区二区三区性色| 国产又色又爽又刺激在线观看| 国产综合无码一区二区色蜜蜜| 蜜桃av噜噜一区二区三区| 欧美人与牲动交xxxx| 同性男男黄g片免费网站| 亚洲国产午夜精品理论片在线播放| 免费a级毛片无码a∨免费软件| 无码日韩精品一区二区人妻| 丁香色欲久久久久久综合网| 男女性杂交内射女bbwxz| 粉嫩av国产一区二区三区| 亚洲精品亚洲人成人网| 精品久久久久久无码国产| 久久亚洲a片com人成| 国产女人和拘做受视频免费| 无码精品一区二区三区在线| 人妻在卧室被老板疯狂进入国产| 激情五月色综合国产精品| 亚洲国产成人片在线观看无码| 狠狠色噜噜狠狠狠狠色综合久av| 妺妺窝人体色www看美女| 久久综合精品无码av一区二区三区| 日韩人妻无码一区二区三区久久99| 国产肥白大熟妇bbbb视频| 刺激一区仑乱| 人人妻人人澡人人爽人人精品浪潮| 三级4级全黄60分钟| 色情无码www视频无码区小黄鸭| 乱亲女h秽乱长久久久| 久久午夜夜伦鲁鲁片免费无码| 欧美激情综合亚洲一二区| 99噜噜噜在线播放| 亚洲av永久天堂在线观看| 久久久久久欧美精品se一二三四|