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应用混匀消光颗分法测定河流泥沙颗分的研究,在我国已取得较大的进展,我们先前研制成的 GDY-1型光电颗分仪,现已在我国一些生产及科研单位使用,其性能见文献[1]、[2][3]。实用证明 GDY-1仪分析成果能达到水文测验规范要求。但从生产科研与推广使用的需要来看:(1)它的测量范围在5～100微米,不够宽。超过100微米的粗泥沙要用其他方法测量,
The application of mixing extinction fraction method for the determination of sediment in rivers has made great progress in our country. The GDY-1 type photoelectric partial instrument previously developed by us has been used by some production and research institutes in our country. The performance of the literature [1], [2] [3]. Practical proof GDY-1 instrument analysis results to meet hydrological test specifications. However, from the production of scientific research and promote the use of the needs of view: (1) Its measurement range of 5 to 100 microns, not wide enough. Crude sediment over 100 microns is measured by other methods,