RF Telemetry from a High Speed Subterrain
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Copyright © International Foundation for TelemeteringCollection Information
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.Abstract
The telemetry of the deceleration loading upon a vehicle which deeply penetrates the earth at high speeds is described. The technique consists of using a single-channel, narrow-band FM transmitter to drive a magnetic dipole so that RF communication with above-ground receivers is provided. A 260-kHz, 340-watt system with a 2-kHz bandwidth is described along with design considerations. The reduction of the conductivity along the signal path by the penetration tunnel with consequent signal enhancement is discussed.Sponsors
International Foundation for TelemeteringISSN
0884-51230074-9079