How radar flowmeters work:
Radar flowmeter adopts advanced planar microwave radar technology to measure the flow rate and water level of water body through non-contact mode, and calculates and outputs real-time cross-sectional flow and cumulative flow according to the built-in software algorithm, which can be used for flow measurement of river channels, irrigation canals and other scenarios. The product uses 24GHz microwave technology for flow rate and water level measurement, not affected by temperature gradients, pressure, air density, wind or other meteorological environmental conditions, not affected by sewage corrosion and sediment, and can work stably around the clock. The product also has the characteristics of low power consumption, small size, easy installation and maintenance, etc., which is very suitable for field measurement environment.
Radar flowmeter is mainly composed of radar flowmeter, radar water level meter, flowmeter is used to collect fluid surface flow rate, and through the model to calculate the average flow rate of the water section, and then combined with the water level measured by the water level meter and cross-section information to calculate the overcurrent section area, so as to use the formula flow rate = average flow rate × the overcurrent section area × correction coefficient to obtain flow, wherein the correction coefficient is calculated according to the standard value obtained by the actual measurement environment.
Radar flowmeter integrated radar water level meter and radar flowmeter, radar water level meter antenna beam angle of 11×11 °, radar antenna angle of 14×32 °, when the water level meter irradiates the water surface, the irradiation area is similar to a circle, when the flowmeter illuminates the water surface, the irradiation area is similar to an elliptical area, accurate understanding of the radar wave irradiation range helps to choose a suitable place to install, avoid some scenes that are easy to be interfered with, such as branches that swing with the wind on both sides of the river.
The planar radar water level gauge is a non-contact surface radar water level gauge for surface water level monitoring, based on accurate measurement of electromagnetic wave ranging technology. The sensor emits electromagnetic waves to irrade the surface of the water and receives its echo, thereby obtaining information such as the distance from the water surface to the point of electromagnetic wave transmission, the rate of change in distance (radial speed), the bearing, and the height. The plane radar water level meter belongs to the innovative application of ranging radar in the field of water level measurement, which realizes the technical leap of water level meter with high precision (millimeter level), small size, large measuring range, reliable accuracy, stable signal, easy installation and maintenance-free; Compared with the traditional horn type water level meter, it has a greater functional improvement
Advantageous features
Non-contact measurement: Unaffected by temperature, humidity, pressure, wind or other environmental conditions, as well as sewage corrosion, sediment, etc
Multi-parameter measurement: Suitable for a variety of measurement conditions, can output flow rate, water level, flow rate and other measurement data
Standard communication interface: Standard data communication interface RS485 can be set
High-level protection: IP68 protection, lightning protection, anti-reverse design, suitable for a variety of wild environments
Low-power design: low power consumption, high reliability, maintenance-free
Built-in water level filtering algorithm: The data is accurate and stable, and is not affected by water surface fluctuations and floating objects
Installation considerations
(1) To be used within the scope of water level observation, check the operation of the instrument from time to time, solve the problem immediately, when it cannot be processed, manual observation is adopted, and the correctness of the display time should be checked at the same time to ensure the authenticity and accuracy of the data, in addition, the freezing and flow ice period cannot be used;
( 2) During the comparison period, the measurement should be compared at the same time every day, so that the data is more accurate, if the number of specific measurements needs to be increased in the case of windy and rainy weather or flood periods, the radar water level meter water level and the specific measured water level should be revised in time;
(3) In daily work, the results of the radar water level meter should not only reflect the process of water level change, but also meet the requirements of the electronic meter, with reference to the "Water Level Observation Standard";
(4) Radar water level meter should pay attention to daily maintenance, fill in the record, and extend the use time.