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Generally speaking, radar level gauge is an umbrella term and the most commonly used name in this industry. It has various other names such as level gauge, liquid level gauge, or material level gauge; it can also be referred to as radar liquid level gauge, radar material level gauge, etc. The difference lies in the fact that the term \"level gauge\" encompasses both liquid level gauges and material level gauges, while \"radar level gauge\" includes radar liquid level gauges and radar material level gauges. In essence, \"level gauge\" is just an abbreviation for \"radar level gauge\", and they mean the same thing. Signal processing methods for radar level gauges: 1. The application scenarios of radar level gauges are often confined to small, enclosed spaces rather than vast open areas. The signal emitted by a radar level gauge is an electromagnetic wave, which propagates in a divergent manner through space and possesses all the characteristics of electromagnetic waves, such as reflection, diffraction, and refraction. Any object in the propagation space causes reflections of signals. A confined space generates numerous reflected signals, including direct reflections from the object’s surface, as well as repeated reflections and oscillations of the signals (multiple reflections between surfaces). 2. When the height of the liquid surface varies, it means that the shape of the measurement space is constantly changing, and as a result, the reflection and oscillation of the signal also change. Especially when the measuring space has a curved surface, such as a dome tank, a spherical vessel, or a horizontal elliptical tank, the curved surface has a focusing effect on electromagnetic waves, which results in the height changes of the liquid level having a greater impact on the reflections. 2. After the radar level gauge is installed and put into use, the conditions of the spatial surfaces in the application area keep changing. Taking the reaction tank as an example, there are a wide variety of media that need to be measured in chemical processes. The liquid level changes during feeding, and factors such as material adhesion or changes in the physical or chemical properties of the inner surface of the tank also play a role; these changes inevitably affect the intensity of the reflected signal. 3. The media present at certain application sites can directly affect the transmission and reception of radar waves. On the one hand, it is manifested in the impact on the antenna. If steam condenses on the surface of the antenna, material crystallizes on that surface. On the other hand, the evaporation or atomization of the medium inside the tank can also affect the propagation of radar waves, thereby impacting the measurements. 5. The liquid surface under measurement can exhibit various conditions: it appears mirror-like when at rest; ripples form on its surface as the liquid level changes; and foam may be present at times. Under different conditions, the number of reflections of the signal changes. Xi’an Dinghua Electronics Co., Ltd., established in 1992 and currently located in Xi’an, Shaanxi Province, is a high-tech enterprise that specializes in the research and development, production, sales, and engineering services of radar level measurement instruments. At present, the company offers a range of products including radar level gauges, external liquid level meters, fork-type level switches, electro-hydraulic actuators, ultrasonic flowmeters, and external thermometers. All of these products have withstood numerous complex operational conditions in real-world settings, and they are widely used in industries such as petroleum, chemicals, power generation, coal mining, metallurgy, as well as food and pharmaceuticals. Professional selection guidance, excellent product quality, reasonable prices, fast delivery times, and comprehensive pre-sales, in-sales, and after-sales services…