Selecting the Right Tank Level Radar Sensor
Tank level radar sensors use radio waves to measure the level of liquids or solids in a container. The radar level sensor emits a radio wave and measures the time it takes for the wave to bounce back after it hits the surface of the liquid or solid. This is referred to as the time-of-flight. The sensor uses this time, along with the speed of light, to calculate the distance to the surface. From this distance, the sensor can determine the level of the liquid or solid.
1. 26 GHz Tank radar level sensors operate at a frequency of 26 GHz (gigahertz), which is in the millimeter wave frequency range. These sensors are used for measuring the level of liquids and solids in tanks, silos, and bins. They are known for their high resolution and ability to penetrate through dust, vapor, and other contaminants that can interfere with other types of sensors.
2. One key characteristic of 26 GHz sensors is their beam width or the width of the radio wave as it travels through the air. 26 GHz sensors have a wider beam width, which means they can measure a larger area with a single measurement. This can be beneficial in applications where the surface of the substance being measured is not perfectly flat or level.
3. Another characteristic of 26 GHz sensors is their penetration depth, or the ability of the radio wave to pass through the substance being measured. 26 GHz sensors have a deeper penetration depth, which means they can measure substances at deeper levels. This can be useful in applications where the substance being measured is deeper in the container, or where the sensor needs to be mounted at a distance from the surface.
4. 80 GHz radar level sensors operate at a frequency of 80 GHz (gigahertz), which is also in the millimeter wave frequency range. These sensors are used for measuring the level of liquids and solids in tanks, silos, and bins. They are known for their high resolution and ability to penetrate through dust, vapor, and other contaminants that can interfere with other types of sensors.
4 (a) One key characteristic of 80 GHz sensors is their beam width or the width of the radio wave as it travels through the air. 80 GHz sensors have a narrower beam width, which allows for higher resolution measurements but requires the surface to be relatively flat. This can be beneficial in applications where high resolution measurements are required, or where the surface of the substance being measured is relatively flat.
4 (b)Another characteristic of 80 GHz sensors is their penetration depth, or the ability of the radio wave to pass through the substance being measured. 80 GHz sensors have a shallower penetration depth, which means they are better suited for measuring shallower surfaces. This can be useful in applications where the substance being measured is relatively shallow in the container, or where the sensor needs to be mounted close to the surface.
In summary, 26 GHz and 80 GHz radar level sensors are both widely used for accurately measuring the level of liquids and solids in tanks, silos, and bins. The choice between the two types of sensors will depend on the specific application and the requirements for resolution, beam width, and penetration depth. Both types of sensors are known for their reliability and accuracy, and they can operate in a variety of challenging environments.
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