Accession Number : ADD015520

Title :   Method and Apparatus for Determining Parameters of a Transmission Line Deployed in a Seawater Environment.

Descriptive Note : Patent, Filed 1 Aug 91, patented 22 Sep 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Nozick, Irwin

Report Date : 22 Sep 1992

Pagination or Media Count : 6

Abstract : A method and apparatus are provided for determining transmission line parameters of a length of single-wire transmission line that is deployed in seawater. The seawater is utilized as an electrically grounded return for the transmission line such that a two-port network is formed at either end of the transmission line. An alternating voltage of known amplitude and frequency is generated and applied to a first end of the length of transmission line. Open and short circuit parameters at the first end are then determined as a second end of the length of transmission line is alternately switched between a open and short circuit mode. The alternating voltage of known amplitude and frequency is then applied to the second end as the first end is alternately switched between an open and short circuit mode so that open and short circuit parameters may be similarly determined at the second end. The open and short circuit parameters determined at both ends are indicative of the transmission line parameters at the known frequency for the length of transmission line deployed.

Descriptors :   *TRANSMISSION LINES, *PATENTS, *SEA WATER, *ENVIRONMENTS, AMPLITUDE, CIRCUITS, FREQUENCY, LENGTH, NETWORKS, PARAMETERS, SHORT CIRCUITS, VOLTAGE, WIRE, DEPLOYMENT, ELECTRICAL GROUNDING, ELECTRICITY

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE