Doppler flowmeter
The product uses the Doppler effect principle of underwater ultrasonic acoustics to measure, the sensor transmits a continuous fixed frequency ultrasonic signal to the front water body, and calculates the moving speed by receiving the acoustic frequency deviation reflected back by the acoustic scatterers moving with the water body (such as: micro-particles, bubbles, impurities, etc.), and then corrects the water velocity by vector. There is a pressure element at the bottom of the sensor, which can sense the change of water pressure, so as to obtain the water level signal, and the outflow area can be deduced according to the preset size parameters of the river (waterway, pipeline), and then the flow data can be obtained.
Measurement parameters: velocity, water level, discharge, water area, water temperature, cumulative discharge, signal strength;
Unidirectional flow (conventional) : do not recognize the positive and negative flow, the output is absolute, 0~±10m/S
Two-way flow (two-way flow) : identify positive and negative flow, output with positive and negative sign value, -10~10m/S;
Alloy plastic shell; Small size, streamlined design;
Continuous acoustic pulse output; Bottom static pressure water level sensor
Obtained: a number of patents and soft, East China Hydrologic instrument testing Center "Calibration/testing report";
Obtained: 1P68 test report issued by CMA accreditation body of China
Selected into the "National Water Conservancy System Bidding Products Key Procurement Catalog"
