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

A non-contact, flow meter technology, used in fluid velocity measurement, open-air water source survey, velocity/acceleration/impact measurement, etc., can solve problems such as measurement method limitations and inability to adapt well, saving manpower and workload Small, time-consuming effects

Inactive Publication Date: 2013-04-10
HENAN ANHONG INFORMATION TECH
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Problems solved by technology

[0005] These methods are all applied in the Yellow River Basin, and they all belong to contact measurement. However, the buoy method is traditionally used to measure the flow velocity; Catastrophic floods, limited by measurement methods, cannot well meet the current hydrological measurement requirements

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

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Embodiment Construction

[0015] In the following, the present invention will be further described through the accompanying drawings and specific illustrations of the present invention.

[0016] Such as figure 1 As shown, a non-contact microwave current meter high water flow test method that replaces traditional buoys, including microwave current meter 1, microwave current meter 1 transmits a beam of microwaves 3 with a frequency of about 37 GHz to the water surface through microwave antenna 2, and is divided into two parts A part of the electromagnetic wave energy refracts into the water, and another small part of the energy is reflected back by the water surface, received by the microwave antenna 2, and generates Doppler frequency information corresponding to the water velocity through the circular polarization mixer; the microwave antenna 2 is connected to the data receiving The terminal 5 transmits the data to the computer 8 through the communication cable 7 , the data receiving terminal 5 and the ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01C13/00
Inventor 张诚吴幸华张敦银刘红李庆飞方海军宋怀勇孙智瑞贾廷勇刘同年王军威孙淑慧任锋胡心乾任文龙
Owner HENAN ANHONG INFORMATION TECH
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