High water flow testing mode of non-contact microwave flow meter capable of replacing traditional buoy

Abstract

The invention provides a high water flow testing mode of a non-contact microwave flow meter capable of replacing a traditional buoy. The high water flow testing mode comprises a microwave flow meter, the microwave flow meter transmits a beam of microwave to the water surface through a microwave antenna, the microwave is divided into two parts; one part of electromagnetic wave energy is refracted into water, other small part energy is reflected back by the water surface to be received by the microwave antenna, and Doppler frequency information corresponding to flow velocity is generated through a circular polarization mixer; and depression angle information of a tilt angle sensor measuring instrument is combined, and the flow velocity can be obtained.

Description

technical field

[0001] The invention relates to the field of water flow velocity measurement, in particular to a non-contact microwave current velocity meter high water flow test method that replaces traditional buoys. Background technique

[0002] At present, the measurement of river flow velocity, especially the measurement of flow velocity during the flood period, has not been well solved in the modernization of hydrological measurement. In the measurement of small and medium flow rates, the ADCP current meter can be used for automatic measurement at present; for the measurement of the high water level and high flow rate flood peak process in the flood process, although in the 1990s, my country also developed a fixed radio current meter, in practice In the application, there are many problems, and it cannot be fully put into production and operation. The current flow velocity measurement in the flood period is still measured by the original buoy method. However, the tradi...

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