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Title Transcription
チンコウシキ リュウド ブンセキ ソウチ ノ シヨウホウ ト ブンセキ ケッカ ノ トクチョウ
Title Alternative (English)
Guide for a grain-size analyzer with a settling tube system, and characteristics of its analysis
File
language
jpn
Author
Tamura, Yoshiyuki
Nakayama, Katsuhiro
Description
A grain-size analyzer with settling tube system was established.A personal computer controls this system and process data.
We measured the grain-size distribution of same samples by three kinds of measuring method; the sieving method,sedimentation method with Emery tube,and sedimentation method with this analyzer.Samples are standard glass spheres(0.177-0.250mm)and beach sand.Analyzing grain size distribution is the moment method.No significant difference among three measuring methods recognized on standard glass spheres.However,the arithmetric mean of beach sand given by this analyzer is approximately 0.4 phi,which is finer than that by the other methods.On sieving method,platy particle may readily pass diagonally through mesh.The other hand,concentrated sample may accelerate settling velocity in Emery tube.Thus size determination by these two methods is coarser.The analyzer in the present study is less susceptible to these factors.Further,this analyzer has high possibilities to connect with the hydrometer technique,and its measurement time is short in comparison with the other methods.
Journal Title
島根大学地球資源環境学研究報告
Volume
12
Start Page
17
End Page
22
ISSN
13439774
Published Date
1993-08-30
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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