Cathodic protection as well as interfering electrical currents are by nature waveforms. Only TransWave reads the waveform. Average-reading surveys cannot evaluate the coating on the bottom of pipe that is larger than 14 inches in diameter. Coating problems there are undetected. Timing is everything.
Corrosion can occur during millisecond events in the waveform.
Waveform signatures and spikes are beyond the event horizon of average-reading instruments and are totally invisible to them. Average reading instruments are blind to these corrosion-causing anomalies. With more than 10,000 readings. Dig less and operate with more confidence. With TransWave, the need for both digging and pigging is greatly reduced.