VEGA develops and manufactures sensors for the measurement of level, point level and pressure as well as equipment and software for integration into process control systems. VEGA’s measurement technology sets new standards in reliability, accuracy and economy for all media and process conditions.
The optimised VEGAPULS instrument series is making radar level measurement technology even more versatile and reliable! The completely redeveloped electronics enables faster,
more accurate and intelligent signal evaluation, with improved antenna systems and additional housing versions to round out the series. Now demanding application areas such as the chemical, petrochemical, bulk solids and power generation industries can benefit even more from the advantages of using non-contact VEGA radar for level measurement.
Guided Wave Radar
In level measurement with guided wave radar, microwave pulses are conducted along a cable or rod probe and reflected by the product surface. The measuring probe of the TDR sensor ensures that the signal reaches the medium undisturbed. Liquids, bulk solids and separation layers (interfaces) in liquids are commonly measured with this measuring technique.
In non-contact ultrasonic level measurement, the sensor emits ultrasonic pulses in the direction of the medium, which then reflects them back.
The elapsed time from emission to reception of the signals is proportional to the level in the tank. Ultrasonic sensors are ideal for simple standard applications, both for liquidsand for solids.
In capacitive level measurement, the sensor and the vessel form the two electrodes of a capacitor. Any change in level causes a capacitance change, which is in turn converted into a level signal.
Thanks to versions with shortenable cables and rods, the capacitive level sensors cover a wide variety of applications.
In hydrostatic level measurement, the measuring cell of the pressure transmitter detects even the slightest changes in hydrostatic pressure, which increases or decreases depending on the filling level. The acting pressure is converted into an electrical signal by the integrated electronics and then outputted as an output signal. Different types of measuring cells are used in level measurementbased on the hydrostatic principle.