Radio wave flow meter working principle and maintenance
The hand-held radar flow meter is a specialized device designed to measure the velocity of water on the surface. It offers rapid and efficient measurement, making it ideal for use during flood conditions. One of its key advantages is that it is not affected by floating debris, water clarity, or turbulence in the flow. In fact, the more floating objects present, the stronger the reflected signal becomes, which enhances the performance of the radar current meter. This makes it a preferred alternative to traditional buoy methods for measuring flow rates.
Working Principle:
The device measures flow rate by emitting radio waves in the direction of the water movement. When these waves hit the water surface, a small portion of the energy is reflected back to the radar antenna. The radar system calculates the water flow speed based on the frequency difference between the transmitted and received signals. The radar beam forms an elliptical pattern within the flow area, with the size of the beam depending on the distance from the antenna to the water surface. The horizontal beam width is 12 degrees, and the coverage area increases as the distance from the radar increases. Typically, the distance between the antenna and the water surface ranges from 5 to 15 meters, allowing for accurate measurements in various environments.
Storage and Maintenance of Handheld Radar Flow Meter:
To ensure the longevity and accuracy of the radar flow meter, proper storage and maintenance are essential. Avoid spilling any liquids, food, or other substances onto the equipment, as this can cause damage. When the device is not in use or being transported, it should always be stored in its original packaging to protect it from dust and physical impact. For cleaning, use a soft, dry cloth—never apply any cleaning solutions directly to the radar unit. Regular maintenance will help maintain optimal performance and extend the life of the instrument.
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