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近年来,国产的和进口的沉降天平的种类和数量都不断增加.与水析仪相比较,沉降天平具有所需试料量少,测定时间短,测定粒度下限达0.5微米等特点.然而,沉降天平仍是以颗粒自由沉降速度为依据而设计的,测定过程中的操作和数据处理方法是十分重要的.本文根据实际工作中的经验及理论分析,就使用沉降天平时的操作步骤及注意事项,进行简单介绍,并推荐一种较简便的数据处理方法——计算法.
In recent years, the types and quantities of domestic and imported settlement balances have been increasing.Compared with the water analyzer, the settlement balance has the features of less sample required, short determination time, and the determination of the particle size limit of 0.5 micron.However, The settlement balance is still based on the free settling velocity of the particles, and the operation and data processing methods in the determination process are very important.This paper based on practical experience and theoretical analysis, on the operation steps and attention when using the settlement balance Matters, a brief introduction, and recommend a more convenient data processing methods - calculation method.