一、概述大江大河的下游或河口地区往往是经济发达、人口密集的地区,水文资料对于航道治理、码头建设以及电厂、钢厂和其它大型企业的发展关系极为密切。但是,潮水河的水文测验工作极其繁重,测量一次全潮往往耗资几十万元,动员几百人,连续作战十多天要取得可靠的资料非常艰辛。测得的大量资料还要进行校核、计算、查曲线、输入计算机、复核等,这些工作均需在现场进行。因此,迫切需要一种既能可靠地采集资料,又能快速地对资料进行处理和计算的智能化仪器,以大大地节省人力。近几年来,我们用Pc—1500A计算机和专门研制的接口电路,配上流速、流向传感 I. Overview Downstream or estuarine areas of large rivers are often economically developed and densely populated areas. Hydrological data are closely related to the development of waterway management, terminal construction and the development of power plants, steel mills and other large-scale enterprises. However, hydrological testing of the tidal river is extremely heavy. Measuring a tidal wave often costs several hundred thousand dollars and mobilizes hundreds of people. It is very hard to obtain reliable information for more than 10 days in a row. Measured a lot of information but also to check, calculate, check the curve, enter the computer, review, etc., these work needs to be carried out in the field. Therefore, there is an urgent need for an intelligent instrument that can reliably collect data and process and calculate data quickly, thereby greatly saving manpower. In recent years, we use Pc-1500A computer and specially developed interface circuit, coupled with flow rate, flow sensing