購買激光粒度儀需要考慮什么？
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最近很多客戶打來電話購買激光粒度儀，但是不知道需要考慮什么指標？濟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.
如果你打算買一臺激光粒度儀的話你要參考以下五點：
If you are going to buy a laser particle size instrument you want to refer to the following five:
第一、測量范圍：分為納米級和微米級
First, the measuring range: can be divided into nanometer level and micro level
第二、測試方法：干法和濕法
Second, test methods: dry method and wet method
第三、測試原理：米氏散射和動態光散射
Third, test principle: mie scattering and dynamic light scattering
第四、激光器：一般分為半導體激光器和HE-NE氣體激光器，半導體激光器優點使用前無需預熱，使用壽命長，缺點是發光不穩定，光斑可能不圓，氣體激光器使用前應先預熱，夏季在15分鐘冬季在30分鐘左右，優點是光斑圓，發光穩定。
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、探測器的數量，也叫測量通道，不同的激光粒度儀探測器的環數也不一樣，測量的精度也不一樣，建議用環數多，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
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