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A SIMPLIFIED DEVICE FOR SIMULTANEOUS FIELD SURVEY OF THE DRIFT SAND, FLOWING DIRECTION AND CURRENT SPEED. -Simultaneous Measurement of the Concentration of Drift Sand and Its Size Distribution-

一种流沙、流向和流速同步现场测量的简化装置。

基本信息

批准号：
63850116
负责人：
MOCHIZUKI Sadamu
金额：
$ 3.58万
依托单位：
MURORAN INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63850116/
关键词：
flowing drift sand drift sand concentration size distribution of drift sand drift sand sampling

项目摘要

For simultaneous measurements of the concentration of flowing drift sand and its size distribution, we studied a sensor based on the light cutoff method between a luminous element and a sensitive element.Using a standard polystilene latex particles 92mum radius and sea water, some fundamental working characteristics were examined with a device consisted of a light cutoff detector ks-63, a particle counter kl-10 and a syringe sampler kz-30s. They are made of Lion Ltd.Followings are obtained; 1) Current volume: 70-100 ml/min. Introducing direction of the materials is suitable in horizontal position. 2) Practicable concentration: o-300 n/ml is reliable. Over the above concentration, counting loss is gradually increased. 3) Radius resolution: 15mum in 100mum fixation. From the fundamental experiments and preliminary observations, the device was found to be useful for the simultaneous measurements of the concentration of flowing drift sand and its size distribution.On an inexpensive integral field survey meter for the concentration measurement of flowing drift sand, a device was work out a design and trial manufacture is going on.

为了同时测量流动流沙的浓度和粒径分布，我们研究了一种基于发光元件和敏感元件之间的光截止方法的传感器。采用半径为92mum的标准聚苯乙烯乳胶颗粒和海水，用光截止检测器ks-63、粒子计数器kl-10和注射器取样器kz-30s组成的装置对其基本工作特性进行了检测。它们是由Lion ltd .制作的。1)电流：70- 100ml /min。物料的引入方向以水平位置为宜。2)实用浓度：0 -300 n/ml可靠。在以上浓度下，计数损失逐渐增大。3)半径分辨率：15mum， 100mum固定。通过基础实验和初步观察，发现该装置可用于同时测量流动流沙的浓度及其粒径分布。针对一种廉价的流动流沙浓度测量综合现场测定仪，研制了一套装置，并进行了设计和试制。