Measuring principle of a Radar Level Gauge
The antenna on a radar level gauge generates millions of very short 1 nano second microwave pulses every second. Each pulse is directed and transmitted to and reflected from a product surface. The elapsed time period between transmission and reception of the signal at the speed of light is measured and calculated as a distance. This continuous stream of pulses gives real time level information updated and is evaluated many times a second.
Radar level sensors work with safe, low emitted power in the C and K-band frequency range. The proven ECHOFOX signal processing selects the correct level echo reliably. Adjustment by filling and emptying the vessel is not necessary, it can normally be done with simple input of vessel dimensions.
Applications in liquids
Two different emitting frequencies are available for these applications. The compact, high frequency sensors are particularly suitable for applications for which high accuracy is required. Even with small antenna sizes, an excellent signal focusing is reached. Low frequency C-band sensors can penetrate foam and strong condensation and are thus particularly suitable for arduous process conditions. Unaffected by steam, gas composition, pressure and temperature changes the sensors detect the product surface of different products reliably.
Applications in bulk solids
High frequency sensors in K-band technology are used for these applications. Thanks to the very good focusing of the signals, the influences of silo installations or buildup on the vessel wall are gated out. A high sensitivity electronics adapted to the requirements of the bulk solids measurement, enables a reliable level measurement of different products up to 70 m. The measuring principle is unaffected by strong dust generation, filling noise, air turbulence by pneumatic filling and temperature fluctuations. The application area covers applications in the food processing industry and the plastic processing up to the steel generation.
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South Africa
Need a radar transmitter (range 8 Meters) to measure Level of Hydrocarbon effluent at a chemical factory(lots of fumes and steam). It will be installed in a manhole where the area is classified as zone 1. Would like battery powered supply with biult in data logger. And be able to manipilate the data so that I relate the level to flow of which is already calculated by the engineer. I need 4 units
I comment rarely on blogs but just wanted to stop and say Great Content.
Need a radar transmitter (range 15-20 Meters) to measure Level of crude oil in cargo tanks . It will be installed in a manhole where the area is classified as zone 1. And be able to manipulate the data so that I relate the level to flow of which is already calculated by the engineer. We need 20 units