Flexar™ Guided Wave Radar

Where ultra-sonics and other technologies have failed, the Flexar™ Guided Wave Radar has succeeded. In the most dusty and difficult environments the Flexar™ unit has proven itself as a durable and reliable continuous level measurement technology™. These systems include cement, fly ash, lime and more.

For materials with a dielectric constant of 1.4-2.1 the second measurement mode is used – Tank Bottom Following (TBF). In TBF mode the micro-pulses are sent to the bottom of the cable, where the probe is located. The probe has a “short-circuit” that reflects the pulses back up to the sensor. Since the time-of-flight for the pulses to reflect back to the sensor in air is a known figure, the time-of-flight with material present can be used in calculating a level of material.

To read the material level micro-pulses are sent up and down the cable near the speed of light. When a pulse hits the material surface it is reflected back to the sensor.

The time the pulses take to travel from the sensor to the material and back can be analyzed to determine what point the level is on the cable. This cycle constantly updates the material level status in the silo and sends an output to the SiloTrack™ Inventory Management Software, a Human Machine Interface (HMI) or your own PLC control system.