What is guided wave radar (GWR)?
Guided wave radar is based on the principle of Time Domain Reflectometry (TDR). It differs from Free Space Radar (FSR) in that the radar pulses are launched down a probe rather that through the air. A high speed electronic pulse is ‘launched’ down a probe, reflects off the surface of the liquid in the tank and returns back up the probe. The total ‘flight’ time of the pulse, to the liquid and back, is calculated to a high level of accuracy thus calculating the liquid level. GWR is the principle used in the Titan Logix Corp.’s TD80 products.
