电波流速仪使用浅谈薛内川川西水文水资源勘测大队１基本原理：电波流速仪是利用多普效应测量水流速度的、当电磁波射向水面时，大部分被水面波浪散射，后面散射的部分电磁波构成回波（波浪和水流基体具有相同的运动速度）、由干接收到的回波频率相对于发射频率有一定的偏... The use of radio wave velocity meter Xuenechuan West Sichuan Hydrology and Water Resources Survey Brigade 1 Fundamentals: The radio wave velocity meter is the use of Doppler effect measurement of water velocity, when the electromagnetic wave is directed to the surface of the water, most of the wave scattering by the water surface, the back part of the scattering of electromagnetic waves Constitute an echo (waves and water flow matrix with the same speed), received by the dry echo frequency relative to the launch of a certain frequency bias ...