Advantages of high-frequency radar level gauges

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Radar level gauges are advanced measuring instruments suitable for solid materials, process vessels, or situations where there is a high risk of dust crystallization or condensation. It features low maintenance, high performance, high precision, high reliability, and a long service life. The common measurement frequencies for high-frequency radar level gauges are 24G, 25G, and 26G. Generally speaking, the higher the frequency of a radar level gauge, the shorter its wavelength, and the stronger and more precise the signal it emits. At the same time, it is more sensitive to the presence of water vapor and to the degree of material accumulation, which is why it is usually used only for measuring solid levels. On the contrary, the lower the frequency, the longer the wavelength, and it is easier to penetrate foam. Compared to high-frequency radar level gauges, agitation in the tank has less impact on low-frequency radar level gauges; therefore, low-frequency radar level gauges are generally a good choice for measuring liquid and gaseous media. Radar level gauges have now become the mainstream products in the market, and they are mainly divided into pulse radar level gauges and guided wave radar level gauges. Compared to low-frequency pulse radar level gauges, high-frequency pulse radar level gauges have the following advantages in practical use: 1. When using a high-frequency radar level gauge, its beam energy is very high, and the angle of its beam is relatively small. The measurement accuracy is quite high, allowing it to fully demonstrate its advantages in terms of measurement. 2. Its wavelength is 11 mm, making it the best choice for measuring the level of bulk materials. Since the reflection of radar waves mainly comes from diffuse reflection at the surface of the material level, the intensity of this diffuse reflection is proportional to the size of the material and inversely proportional to the wavelength. Since the diameter of most bulk materials is much less than 50 mm, this method is widely used for measuring solid materials. 3. High-frequency radar level gauges have short antennas and good directionality, making them more suitable for measuring the level in small storage tanks compared to low-frequency radar level gauges. Furthermore, high-frequency radar level gauges can be equipped with antenna covers to mitigate the impact of dirt and moisture on their measurement accuracy, whereas low-frequency radar level gauges have larger antennas, making it somewhat difficult to install antenna covers. Additionally, due to their greater weight, cleaning them presents certain challenges. 4. Due to the harsh conditions at the site, over time the radar antenna accumulates dirt, moisture, and other contaminants. The antenna of the 26GHz radar level gauge is small, and an additional antenna cover can **reduce the impact caused by dirt and moisture. 5. Due to its good directionality, it can be installed outside the container in many harsh operating conditions through simple isolation for isolated measurement. 6. No blind spots, high precision ； It is also unaffected by environmental factors such as vacuum, dust, steam, inert gases, pressure, and temperature changes. 7. It features simple calibration and high sensitivity, making it highly suitable for high-temperature environments. In summary, the greatest advantage of using high-frequency radar level gauges is their high precision; the measurement results are very accurate, and this is why many people choose them. Their performance in terms of measurement is also excellent. Furthermore, this type of equipment can also ensure accurate measurements to the greatest extent possible, as well as continuity. The device uses recyclable materials in a cyclic manner, which ensures good environmental performance; moreover, the materials used to manufacture the radar level gauge have high stability and do not change arbitrarily.