雷達測流的基本原理是基于流速面積法。斷面一定時間內的流量=平均流速*水流截面積。通過雷達流速傳感器探頭可以獲取表面流速，根據雷達流量計內置的流速模型，通過預先設定的斷面參數，將雷達測得的表面流速轉化為斷面平均流速；通過雷達水位傳感器探頭可以獲取斷面水位/水深，雷達流量計結合斷面幾何參數，自動算出斷面面積，根據流速面積法公式，求得流量。

This solution employs the ultrasonic time-of-flight (ToF) principle to design an online monitoring system for open channel flow. It enables real-time measurement of water flow velocity and water level in open channels, calculates accurate discharge data, and provides scientific support for water resource management and allocation.

This solution utilizes the ultrasonic time-of-flight (ToF) principle to establish an online monitoring system for open channel flow. It enables real-time measurement of water velocity and water level in open channels, calculates accurate discharge data, and provides scientific support for water resource management and allocation.

The?HJ-UT-C Series Ultrasonic Flow Meter, independently developed by?Shenzhen Huaju Scientific Instruments Co., Ltd., is a high-performance device based on the ToF measurement principle. Featuring a?U-shaped integrated structure, it is tailored for precise flow monitoring in hydraulic engineering, agriculture, and irrigation channels.