Pipe survey method using UWB signal

摘要

A method of surveying the condition of an underground enclosure including the steps of: (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil.

主权项

1. A method of surveying the condition of an underground enclosure comprising:
a. positioning at least one transmitter/receiver unit, including at least two antennas, within an underground, substantially nonconductive enclosure, wherein said antennas comprise a substantially in-line configuration; b. transmitting a UWB signal toward at least a portion of an inner wall of said enclosure; and c. processing a return signal from said transmitted signal in order to identify a distance between a receiver antenna and at least one of a liner/enclosure interface, a soil/enclosure interface or a void/enclosure interface.