摘要
设计了一种全自动高精度集沙仪,可以根据试验要求实时采集不同方位的沙样,获取沙样质量数据,实现全自动高频次连续集沙.利用气象数据和风蚀传感器采集的数据,在野外风沙观测场对全自动高精度集沙仪进行测试分析.结果表明,不同强度沙尘天气下,集沙仪翻斗的翻转频率随着天气强度的增大而增加,呈幂函数关系y=2.115x 0.9841,R 2=0.92,1 min翻转次数由0.3次增加到1.3次.随着天气强度的加强,单次翻转集沙量呈逐渐减小的趋势.发生沙尘暴时,单次翻转集沙量为3.72 g;强度为Ⅰ级扬沙天气时,单次翻转集沙量为4.03 g;强度为Ⅱ级扬沙天气时,单次翻转集沙量为5.00 g.全自动高精度集沙仪野外应用效果良好,是一种适合高精度自动监测野外风沙活动的新型测量工具.
In this work,an automatic and high-precision sand trap is designed,which can monitor and collect sand sample data from different directions in real-time according to the requirements of the experiment,so as to obtain sand sample quality data,thus realizing automatic and high-frequency continuous sand sample collection.Based on the meteorological data and wind erosion sensor data,the automatic and high-precision sand collector in the field was tested and analyzed.The results showed that the rotation frequency of the bucket increased with the increase of the weather intensity under different sand-dust weather intensities,showing a power function:Y=2.115X 0.9841,R 2=0.92,and the inversion frequency increased from 0.3 to 1.30 times per minute.With the increase of weather intensity,the amount of sediment accumulated in a single turn gradually decreases.When a sandstorm occurs,the amount of sand collected in a single tipping bucket is 3.72 g.At the same time,when the intensity is a levelⅠsandstorm,the amount of sand collected in a single flip is 4.03 g,and when the intensity is a levelⅡsandstorm,each flip the amount of collected sand is 5.00g.The automatic high-precision sand collector is a new measuring tool suitable for the automatic monitoring of high-precision wind and sand activities in the field.
作者
康永德
杨兴华
肖让
周成龙
何清
KANG Yong-de;YANG Xing-hua;XIAO Rang;ZHOU Cheng-long;HE Qing(Institute of Desert Meteorology,China Meteorological Administration,Urumqi 830002,Xinjiang,China;College of Civil Engineering,Hexi University,Zhangye 734000,Gansu,China)
出处
《西北师范大学学报（自然科学版）》
CAS
北大核心
2020年第1期122-128,共7页
Journal of Northwest Normal University(Natural Science)
基金
国家自然科学基金资助项目(41875019)
新疆自治区柔性人才引进项目
