Electricity: measuring and testing – Of geophysical surface or subsurface in situ – By aerial survey
Reexamination Certificate
2005-03-22
2005-03-22
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
By aerial survey
C324S326000, C324S330000
Reexamination Certificate
active
06870370
ABSTRACT:
A airborne electromagnetic induction (EMI) detection apparatus and system. In accordance with one embodiment, the EMI detection apparatus includes a transmitter element in the form of a transmitter coil that emits a primary, multi-frequency component magnetic field which induces a secondary magnetic field in an external body. A receiver element in the form of a receiver coil is mounted in a horizontal loop-loop orientation with respect to the transmitter coil and receives the secondary magnetic field. The detection apparatus further includes a magnetic shield disposed around the receiver coil to limit the lateral footprint diameter observed by the receiving element and to shield the receiver coil from the primary magnetic field and other external electromagnetic radiation to improve the gain and resolution of the detection apparatus.
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Agri Dynamics, Inc.
LeDynh Bot
Saitta Thomas C.
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