| 摘要 |
In an apparatus for the remote detection of ore bodies, comprising means for radiating a primary electromagnetic waveform exhibiting abrupt discontinuities, means for discerning secondary signals induced in and reradiated from a conducting body together with transient components of such secondary signals, and means for sampling and examining the transient components, the transient components are processed serially and applied to a signal averager providing a number of channels the outputs from which correspond to the respective time average values of sequential portions of the transient wave form. |
