System, method and apparatus for controlling buried devices

A system, method and apparatus for controlling buried devices by means of a very low frequency (VLF) modulated magnetic field capable of providing through-the-earth (TTE) communications. The system comprises a plurality of VLF transmission loop antennas positioned to cover a desired coverage area an...

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Hauptverfasser: Kwasniok, Peter, Puzakov, Vladimir, Roper, Michael James
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creator Kwasniok, Peter
Puzakov, Vladimir
Roper, Michael James
description A system, method and apparatus for controlling buried devices by means of a very low frequency (VLF) modulated magnetic field capable of providing through-the-earth (TTE) communications. The system comprises a plurality of VLF transmission loop antennas positioned to cover a desired coverage area and configured to transmit a magneto-inductive signal to a desired operating depth. One or more VLF receivers are configured to receive one or more magneto-inductive signals from the one or more VLF transmission antennas. The VLF receivers are operatively connected to the buried devices, and configured to output a control signal thereto in response to the magneto-inductive signals. The plurality of VLF transmission loop antennas may be square or rectangular antennas positioned in an array to cover the desired coverage area, the VLF transmission loop antennas sized and sufficiently powered to transmit the magneto-inductive signal to the desired operating depth.
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subjects PHYSICS
SIGNALLING
TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
title System, method and apparatus for controlling buried devices
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