Functioning principle: a series of pulses is emitted with speed of light from the radar antenna onto the surface to be measured and part of their energy is reflected and captured by the same antenna.
The time elapsed between pulse series emission and its reception by the antenna is proportional to the distance between antenna and the surface to be measured. Given the enormous speed of the electromagnetic waves, this time (nanoseconds) is primarily hard to identify correctly. But radar transducers use an adequate technique that allows for independent wave demodulation to determine the correct time elapsed between pulse emission and reception.
Radar transducers do not contain moving parts. They use only an antenna installed within the reservoir / tank to be tested.
Radar transducers are not affected by actual pressure, temperature, viscosity, dust or foam.
