Working principle
Using multi-frequency composite modulation sound wave vibration technology, by installing a sound vibrator at the pipe interface, a specific sound wave signal mixed with multiple frequencies is generated in the pipe. The signal is transmitted laterally along the pipe in both directions and vertically to the ground. Sound collection, the collected signal is processed by the receiving host, and displayed on the host screen in the form of a visual spectrum and signal column. At the same time, the sound will also be output to the earphone through the host, and the two methods of "listening", "seeing" are combined to analyze and judge. Location and orientation of pipes.