摘要
本文通过论证,提出了由计算机采集地表径流水位并按实验得出的 H—Q 公式计算地表径流的瞬时、累积流量并实时打印流量过程的先进方法。为此,研制了一套人工降雨径流量自动检测系统,给出其工作原理。系统由量水槽、编码式跟踪水位计、光电隔离—电平转换电路、消抖电路及单板机系统构成,软件用 Z-80汇编语言和 FORTRAN-80语言混合编制。系统抗干扰能力强,精度较高,在人工降雨场正式试验,一次获得成功。
This paper is related to the function of rainfall on the erosion of the different vegetation and topography and soil,it is of far read- ing importance to the soil and water conservation of areas,particularly of the loess plateau in the northwest of China.Therefore,the surface runoff of land should be measured,and above all things it is important that the runoff,which is formed from some artificial rainfall intensity within a certain area,will be measured.An advanced method is discussed and pro- vided.According to it the water levels of runoff on the surface soil can be collected by a computer,both the instantaneous value and the accumu- lative value of the runoff on the surface soil can be calculated by the for- mula H～Q from practice,and the flow capacity will be mimeographed at all times.For this reason,a set of automatic inspection system for the runoff capacity of artificial rainfall is developed and its machnism is pre- sented.The system consists of a water trough,by which the water capa- city can be measured,a fluviograph which follows the water level tracks and shows the values corresponding to the water level,a circuit of transform between the light-electric seperation and the electric level,an oscilation elimination circuit and sheet machine.The software is used as programming by means of both the Collective Languege Z-80 and the Languege Fortran-80.Having a high interference-free property and a high precision,the system is successful as soon as it is regularly evaluated at the begining in the artificial rainfall field.
出处
《水土保持学报》
CSCD
北大核心
1990年第3期56-62,共7页
Journal of Soil and Water Conservation
关键词
人工降雨
径流量
自动检测系统
surface runoff
rainfall
sampling system by computer
