Resonant assembly, system and method for identification of a buried asset

摘要

A resonant assembly for identification of a buried asset comprising first and second resonant members each configured to resonate at a respective different resonant frequency when excited by an electromagnetic field. The resonant assembly is arranged to cause a near-field coupling of transmit and receive antenna of a detector at the first and second resonant frequencies such that identification of the resonant assembly is performed at least in part according to the frequencies of the coupling.

主权项

1. A resonant assembly for identification of a buried asset, comprising first and second resonant members, the first and second resonant members each being configured to resonate at a respective different resonant kHz regime frequency when excited by an electromagnetic field, wherein at least one resonant member comprises a discontinuous loop having at least one inductive element and at least two capacitive elements connected between the free-ends of the loop, such that the assembly is configured to resonate at first and second resonant frequencies in the kHz regime when the loop is excited by the electromagnetic field to thereby cause a near-field coupling of transmit and receive antenna of a detector at the first and second frequencies.