超声波时差法在泗安水库测流中的应用

Application of Ultrasonic Time Difference Method in Flow Measurement of Si'an Reservoir

为解决泗安水库入库流量监测中存在的交通不便、监测设施与人力缺乏等问题,依据超声波时差法原理,结合上游行政交接断面水文特性,采用四声路超声波换能器等设备实现前端数据自动监测,由公式换算后得出实时入库流量。通过对在线监测数据进行比对测量、曲线检验等处理,验证该技术准确可靠,其监测精度满足专用站测验要求。

In order to solve the problems such as inconvenient traffic,lack of monitoring facilities and manpower in the monitoring of inflow flow of Si'an Reservoir,according to the principle of ultrasonic time difference method,combined with the hydrological characteristics of the upstream administrative crossing section,four-channel ultrasonic transducer was adopted to realize the automatic monitoring of front-end data,and real-time inflow flow was obtained after conversion from the formula.By comparing the on-line monitoring data and checking the curve,it is proved that the technology is accurate and reliable,and its monitoring accuracy meets the test requirements of special station.