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You may also be interested in
Level switch, Vibrating level switch, Capacitive level sensor, Microwave level switch, Radiometric level sensor
Text version of the page
| MMMA | |||||||||||||||||
| Description of the measuring principle | |||||||||||||||||
| Description of the measuring principle | |||||||||||||||||
| 1 | |||||||||||||||||
| Extremely short microwave pulses with low emitted power are transmitted by the antenna system to the measured product, reflected by the product surface and received by the antenna system. Radar waves travel at the speed of light. The time from emission to reception of the signals is proportional to the level in the vessel. A special time stretching procedure ensures reliable and precise measurement of the extremely short periods. The latest microcomputer technology and the proven software ECHOFOX select the level echo from among any number of false echoes and measure it precisely. By simply entering the vessel dimensions, a level-proportional signal can be generated. The product level must not be varied during adjustment. Unaffected by temperature and pressure The propagation of microwaves is practically unaffected by the ambient temperature and pressure. Hence these radar sensors are ideal for use under extremely difficult process conditions. Pressures from vacuum up to 160 bar (2320 psi) and temperatures from -40 ... +400°C (-40 ... +752°F) are no problem for radar measurement. | |||||||||||||||||
| Unaffected by product properties Fluctuations in product composition or even complete product changes do not influence the measuring result. A fresh adjustment is not necessary. | |||||||||||||||||
| Antenna systems VEGAPULS series 60 radar sensors are optimised fort he respective application area. They operate in two different frequency ranges (C or K-band technology) and are available with different antennas. Thereof result instrument-specific beam angles, measuring ranges and measuring characteristics. The selection of the suitable radar sensor depends on the respective application. The type overview on the following pages should give a first idea. For a detailed selection you can use the "Finder1 and "Configurator1 on our website or contact one of our agencies. | |||||||||||||||||
| Radar - Level measurement | |||||||||||||||||
| 3 | |||||||||||||||||