Based on the requirements for monitoring the hydrologic elements of rivers, lakes and reservoirs, The techniques of monitoring, collecting, transmitting and processing hydrologic information are explored in this paper. The major works are as follows:To overcome the problems in relation to the existing water stage sensors, this paper developed a new floating-type stage sensor with an accuracy to millimeter by employing photoelectricity, magnetic reed, power-saving, coding and error correcting technologies. T...
| 
点击下列相关研究机构和相关文献作者，可以直接查到这些机构和作者被《中国知识资源总库》收录的其它文献，使您全面了解该机构和该作者的研究动态和历史。
